245 Engine parts are listed for the 1971 Checker Marathon, in 46 part types, covering both the 4.1L 250cid L6 and the 5.7L 350cid V8. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 1971 Checker Marathon, the engine covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components. 71 parts of the 245 listed are Connecting Rod Bearing (39 parts), Crankshaft Main Bearing (17 parts) and Valve Cover Gasket (15 parts). The other 43 part types cover the remaining 174 parts.
The 1971 Checker Marathon was sold with both the 4.1L 250cid L6 and the 5.7L 350cid V8. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 1971 Checker Marathon engine parts are MAHLE / CLEVITE (46 parts), FEL-PRO (32 parts) and ARP (31 parts), plus 28 more brands. Quality grades include Standard Replacement, High Performance and Economy.
42 parts on this 1971 Checker Marathon page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including KING ENGINE BEARINGS CR807SI (Connecting Rod Bearing) and APEX ACS3022 (Conversion / Lower Gasket Set). Click any part number to see every vehicle that part fits.
Bolt Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ARP Fits: 5.7L 350cid V8 | 5349701 | 🇺🇸 US 🇨🇦 CA | Black Oxide12 Point Bolt Head | View on Amazon |
| ARP Fits: 5.7L 350cid V8 | 5349801 | 🇺🇸 US 🇨🇦 CA | Hex Bolt Head | View on Amazon |
| ARP Fits: 5.7L 350cid V8 | 5349601 | 🇺🇸 US 🇨🇦 CA | Stainless Steel Hex Bolt Head | View on Amazon |
| ARP Fits: 5.7L 350cid V8 | 5349501 | 🇺🇸 US 🇨🇦 CA | Stainless Steel12 Point Bolt Head | View on Amazon |
This table covers the Bolt kits.
4 Bolt Kit parts for the 1971 Checker Marathon come from ARP.
Listed part numbers: ARP 5349701, ARP 5349801 and ARP 5349601, plus the other parts above.
Camshaft Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | SH290S | 🇺🇸 US 🇨🇦 CA | Full Set | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | SH1349S | 🇺🇸 US 🇨🇦 CA | High PerformanceFull Set | View on Amazon |
| SEALED POWER Fits: 5.7L 350cid V8 | 1235M | 🇺🇸 US 🇨🇦 CA | Babbitt StyleFull Round Design | View on Amazon |
| SEALED POWER Fits: 5.7L 350cid V8 | 1749M | 🇺🇸 US 🇨🇦 CA | AluminumBi-Metal | View on Amazon |
This table covers the Camshaft bearings. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.
4 Camshaft Bearing parts for the 1971 Checker Marathon come from 2 brands — MAHLE / CLEVITE and SEALED POWER.
Part numbers include MAHLE / CLEVITE SH290S, MAHLE / CLEVITE SH1349S and SEALED POWER 1235M, among others listed above.
Camshaft Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ARP Fits: 5.7L 350cid V8 | 1341001 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Camshaft bolts.
One part is listed for the 1971 Checker Marathon — ARP 1341001.
Connecting Rod Bearing
High Performance
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ENGINE PRO Fits: 5.7L 350cid V8 | 11663H | 🇺🇸 US 🇨🇦 CA | Performance H SeriesSet | View on Amazon |
| ENGINE PRO Fits: 5.7L 350cid V8 | 11663HX | 🇺🇸 US 🇨🇦 CA | High PerformanceExtra Oil Clearance of .001 | View on Amazon |
| ENGINE PRO Fits: 5.7L 350cid V8 | 11663HD | 🇺🇸 US 🇨🇦 CA | High Performancewith dowel hole | View on Amazon |
| ENGINE PRO Fits: 5.7L 350cid V8 | 11663HC | 🇺🇸 US 🇨🇦 CA | High PerformanceCoated | View on Amazon |
| ENGINE PRO Fits: 5.7L 350cid V8 | 11663HXC | 🇺🇸 US 🇨🇦 CA | High PerformanceCoated | View on Amazon |
| KING ENGINE BEARINGS Fits: 5.7L 350cid V8 | CR807HPND | 🇺🇸 US 🇨🇦 CA | SetRace bearings, Bimetal (Alecular) | View on Amazon |
| KING ENGINE BEARINGS Fits: 5.7L 350cid V8 | CR807HPNDX | 🇺🇸 US 🇨🇦 CA | SetRace bearings, Bimetal (Alecular) | View on Amazon |
| KING ENGINE BEARINGS Fits: 5.7L 350cid V8 | CR807XPN | 🇺🇸 US 🇨🇦 CA | SetRace bearings, Trimetal [Pmax Black] | View on Amazon |
| KING ENGINE BEARINGS Fits: 5.7L 350cid V8 | CR807XPNX | 🇺🇸 US 🇨🇦 CA | Race bearings, Trimetal [Pmax Black]Set | View on Amazon |
| KING ENGINE BEARINGS Fits: 5.7L 350cid V8 | CR807XPND | 🇺🇸 US 🇨🇦 CA | Race bearings, Trimetal [Pmax Black]Set | View on Amazon |
| KING ENGINE BEARINGS Fits: 5.7L 350cid V8 | CR807XPNDX | 🇺🇸 US 🇨🇦 CA | Race bearings, Trimetal [Pmax Black]Set | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | CB663HN | 🇺🇸 US 🇨🇦 CA | High PerformanceH Series (Tri-Metal) | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | CB663HND | 🇺🇸 US 🇨🇦 CA | High PerformanceH Series (Tri-Metal) | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | CB663FN | 🇺🇸 US 🇨🇦 CA | High PerformancePair | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | CB663VN | 🇺🇸 US 🇨🇦 CA | High PerformanceNarrowed | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | CB663VXN | 🇺🇸 US 🇨🇦 CA | High Performance.001in Extra Oil Clearance / Narrowed | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | CB663FND | 🇺🇸 US 🇨🇦 CA | High PerformancePair | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | CB663FXN | 🇺🇸 US 🇨🇦 CA | High PerformancePair | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | CB663FXND | 🇺🇸 US 🇨🇦 CA | High PerformancePair | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | CB663HXN | 🇺🇸 US 🇨🇦 CA | High Performance.001in Extra Oil Clearance / Narrowed | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | CB663HXND | 🇺🇸 US 🇨🇦 CA | High Performance.001 in Extra Oil Clearance / Narrowed / Doweled Connecting Rod | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | CB663HNC | 🇺🇸 US 🇨🇦 CA | High PerformanceH Series (Tri-Metal) | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | CB663HXNC | 🇺🇸 US 🇨🇦 CA | High Performance.001in Extra Oil Clearance / Narrowed / Coated | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | CB663HNDC | 🇺🇸 US 🇨🇦 CA | High PerformanceH Series (Tri-Metal) | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| KING ENGINE BEARINGS Popular Fits: 5.7L 350cid V8 | CR807SI | 🇺🇸 US 🇨🇦 CA | SetBimetal (Aluminum Silicon Base) | View on Amazon |
| MAHLE / CLEVITE Popular Fits: 5.7L 350cid V8 | CB663A | 🇺🇸 US 🇨🇦 CA | A Series (Aluminum)Pair | View on Amazon |
| MAHLE / CLEVITE Popular Fits: 5.7L 350cid V8 | CB663P | 🇺🇸 US 🇨🇦 CA | P Series (Tri-Metal)Pair | View on Amazon |
| MAHLE / CLEVITE Popular Fits: 5.7L 350cid V8 | CB663A8 | 🇺🇸 US 🇨🇦 CA | A Series (Aluminum)Set | View on Amazon |
| MAHLE / CLEVITE Popular Fits: 5.7L 350cid V8 | CB663P8 | 🇺🇸 US 🇨🇦 CA | P Series (Tri-Metal)Set | View on Amazon |
| SEALED POWER Popular Fits: 5.7L 350cid V8 | 2555CP | 🇺🇸 US 🇨🇦 CA | Overplated Copper-Lead Alloy | View on Amazon |
| KING ENGINE BEARINGS Fits: 5.7L 350cid V8 | CR865SI | 🇺🇸 US 🇨🇦 CA | SetBimetal (Aluminum Silicon Base) | View on Amazon |
| KING ENGINE BEARINGS Fits: 5.7L 350cid V8 | CR807SIX | 🇺🇸 US 🇨🇦 CA | Setbimetal (aluminum silicon base) | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | CB1776A | 🇺🇸 US 🇨🇦 CA | A Series (Aluminum)Pair | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | CB1776A8 | 🇺🇸 US 🇨🇦 CA | A Series (Aluminum)Set | View on Amazon |
| SEALED POWER Fits: 5.7L 350cid V8 | 2555A | 🇺🇸 US 🇨🇦 CA | A-Series Aluminum BearingsStandard Shaft Minimum (Inch): 2.0990 In | View on Amazon |
| SEALED POWER Fits: 5.7L 350cid V8 | 82555A | 🇺🇸 US 🇨🇦 CA | SetA-Series aluminum bearings | View on Amazon |
| SEALED POWER Fits: 5.7L 350cid V8 | 82555CP | 🇺🇸 US 🇨🇦 CA | SetOverplated Copper-Lead Alloy | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| KING ENGINE BEARINGS Fits: 5.7L 350cid V8 | CR807HPNX | 🇺🇸 US 🇨🇦 CA | Race bearings, Bimetal (Alecular)Set | View on Amazon |
| KING ENGINE BEARINGS Fits: 5.7L 350cid V8 | CR807HPN | 🇺🇸 US 🇨🇦 CA | SetRace bearings, Bimetal (Alecular) | View on Amazon |
This table covers the bearings in the connecting-rod big ends. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.
39 Connecting Rod Bearing parts for the 1971 Checker Marathon come from 4 brands — MAHLE / CLEVITE, KING ENGINE BEARINGS, ENGINE PRO and 1 other brand. The "Popular" part is KING ENGINE BEARINGS CR807SI. They are grouped as High Performance and Standard Replacement, with High Performance the largest group at 24 parts from MAHLE / CLEVITE, KING ENGINE BEARINGS and ENGINE PRO.
Connecting Rod Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ARP Fits: 5.7L 350cid V8 | 1346003 | 🇺🇸 US 🇨🇦 CA | Large Journal 3/8" | View on Amazon |
This table covers the Connecting Rod bolts.
One part is listed for the 1971 Checker Marathon — ARP 1346003.
Connecting Rod Nut
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 5.7L 350cid V8 | 635002 | 🇺🇸 US | Thread Size: 3/8-24Hex: 9/16" | View on Amazon |
This table covers the Connecting Rod nuts.
One part is listed for the 1971 Checker Marathon — DORMAN 635002.
Conversion / Lower Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| APEX Popular Fits: 5.7L 350cid V8 | ACS3022 | 🇺🇸 US | View on Amazon | |
| ENGINE PRO Fits: 5.7L 350cid V8 | 3777332 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FEL-PRO Fits: 5.7L 350cid V8 | CS77332 | 🇺🇸 US 🇨🇦 CA | Multi-PieceRear Main Seal Not Included | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | CS1178 | 🇺🇸 US 🇨🇦 CA | Includes 2 Piece Rear Main Seal | View on Amazon |
| VICTOR REINZ Fits: 5.7L 350cid V8 | 081005601 | 🇺🇸 US 🇨🇦 CA | with 2 Piece Rear Main Seal | View on Amazon |
This table covers lower / conversion gasket sets for oil-pan and related joints. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration.
5 Conversion / Lower Gasket Set parts for the 1971 Checker Marathon come from 5 brands — APEX, ENGINE PRO, FEL-PRO and 2 other brands. The "Popular" part is APEX ACS3022.
Listed part numbers: APEX ACS3022, ENGINE PRO 3777332 and FEL-PRO CS77332, plus the other parts above.
Crankshaft Main Bearing
High Performance
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MAHLE / CLEVITE Popular Fits: 5.7L 350cid V8 | MS909H | 🇺🇸 US 🇨🇦 CA | High PerformanceH Series (Tri-Metal) | View on Amazon |
| KING ENGINE BEARINGS Fits: 5.7L 350cid V8 | MB557HP | 🇺🇸 US 🇨🇦 CA | alecular (racing line)Set | View on Amazon |
| KING ENGINE BEARINGS Fits: 5.7L 350cid V8 | MB557HPX | 🇺🇸 US 🇨🇦 CA | alecular (racing line)Set | View on Amazon |
| KING ENGINE BEARINGS Fits: 5.7L 350cid V8 | MB557XPX | 🇺🇸 US 🇨🇦 CA | Race bearings, Trimetal [Pmax Black]Set | View on Amazon |
| KING ENGINE BEARINGS Fits: 5.7L 350cid V8 | MB557XP | 🇺🇸 US 🇨🇦 CA | SetRace bearings, Trimetal [Pmax Black] | View on Amazon |
| KING ENGINE BEARINGS Fits: 5.7L 350cid V8 | MB557XPC | 🇺🇸 US 🇨🇦 CA | pmaxkote (racing line), polymer coatedSet | View on Amazon |
| KING ENGINE BEARINGS Fits: 5.7L 350cid V8 | MB557XPCX | 🇺🇸 US 🇨🇦 CA | pmaxkote (racing line), polymer coatedSet | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | MS909HX | 🇺🇸 US 🇨🇦 CA | High PerformanceH Series (Tri-Metal) | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | MS909HC | 🇺🇸 US 🇨🇦 CA | High PerformanceCoated | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MAHLE / CLEVITE Popular Fits: 5.7L 350cid V8 | MS909A | 🇺🇸 US 🇨🇦 CA | A Series (Aluminum)Set | View on Amazon |
| MAHLE / CLEVITE Popular Fits: 5.7L 350cid V8 | MS909P | 🇺🇸 US 🇨🇦 CA | P Series (Tri-Metal)Set | View on Amazon |
| SEALED POWER Popular Fits: 5.7L 350cid V8 | 4663M | 🇺🇸 US 🇨🇦 CA | SetOverplated Copper-Lead Alloy | View on Amazon |
| KING ENGINE BEARINGS Fits: 5.7L 350cid V8 | MB557SI | 🇺🇸 US 🇨🇦 CA | SetBimetal (Aluminum Silicon Base) | View on Amazon |
| SEALED POWER Fits: 5.7L 350cid V8 | 4663MA | 🇺🇸 US 🇨🇦 CA | SetA-Series aluminum bearings | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ENGINE PRO Fits: 5.7L 350cid V8 | 12909H | 🇺🇸 US 🇨🇦 CA | OE Replacement A SeriesSet | View on Amazon |
| ENGINE PRO Fits: 5.7L 350cid V8 | 12909HX | 🇺🇸 US 🇨🇦 CA | Performance H Series +.001 Bearing OversizeSet | View on Amazon |
| ENGINE PRO Fits: 5.7L 350cid V8 | 12909HC | 🇺🇸 US 🇨🇦 CA | Performance H Series CoatedSet | View on Amazon |
This table covers the main bearings that support the crankshaft in the block. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.
17 Crankshaft Main Bearing parts are listed for the 1971 Checker Marathon, from KING ENGINE BEARINGS, MAHLE / CLEVITE, ENGINE PRO and 1 other brand. MAHLE / CLEVITE MS909H carries the "Popular" badge.
In the High Performance grade, KING ENGINE BEARINGS and MAHLE / CLEVITE supply 9 parts: engineered beyond original-equipment specification. A representative part number is MAHLE / CLEVITE MS909H.
The Standard Replacement section lists 5 options from MAHLE / CLEVITE, SEALED POWER and KING ENGINE BEARINGS — built to original-equipment specification. MAHLE / CLEVITE MS909A is listed in this group.
3 ungrouped parts are not assigned to a grade, with the same engine-level match.
Crankshaft Main Bearing Cap Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ARP Fits: 5.7L 350cid V8 | 1345401 | 🇺🇸 US 🇨🇦 CA | Stud2-Bolt | View on Amazon |
| ARP Fits: 5.7L 350cid V8 | 1345601 | 🇺🇸 US 🇨🇦 CA | Stud4-Bolt | View on Amazon |
This table covers the Crankshaft Main Bearing Cap bolts.
2 Crankshaft Main Bearing Cap Bolt parts for the 1971 Checker Marathon come from ARP.
This group includes ARP 1345401 and ARP 1345601.
Crankshaft Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Fits: 5.7L 350cid V8 | 99176 | 🇺🇸 US | Front0.563 IN Width | View on Amazon |
| WJB / INMOTION PARTS Fits: 5.7L 350cid V8 | WS99176 | 🇺🇸 US | Installation Depth: 0.81299999999999994 InShaft Diameter Minimum (In): 1.7609999999999999 In | View on Amazon |
This table covers the sleeves used to restore a grooved crankshaft seal surface.
2 Crankshaft Repair Sleeve parts are listed for the 1971 Checker Marathon, from NATIONAL and WJB / INMOTION PARTS.
This group includes NATIONAL 99176 and WJB / INMOTION PARTS WS99176.
Crankshaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: 5.7L 350cid V8 | BS40013 | 🇺🇸 US 🇨🇦 CA | Rubber | View on Amazon |
| FEL-PRO Popular Fits: 5.7L 350cid V8 | BS118291 | 🇺🇸 US 🇨🇦 CA | Rubber | View on Amazon |
| NATIONAL Popular Fits: 5.7L 350cid V8 | 9845 | 🇺🇸 US | Front0.375 IN Width | View on Amazon |
| APEX Fits: 5.7L 350cid V8 | ABS322 | 🇺🇸 US | Rear | View on Amazon |
| BCA Fits: 5.7L 350cid V8 | NS9845 | 🇺🇸 US 🇨🇦 CA | Front0.375 IN Width | View on Amazon |
| NATIONAL Fits: 5.7L 350cid V8 | 5092 | 🇺🇸 US 🇨🇦 CA | RearSplit Type | View on Amazon |
| SCHAEFFLER Fits: 5.7L 350cid V8 | SS2784 | 🇺🇸 US 🇨🇦 CA | Front9.53 mm Width | View on Amazon |
| SCHAEFFLER Fits: 5.7L 350cid V8 | SR3932 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VICTOR REINZ Fits: 5.7L 350cid V8 | 191006901 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| VICTOR REINZ Fits: 5.7L 350cid V8 | 191011601 | 🇺🇸 US 🇨🇦 CA | SetRubber | View on Amazon |
| WJB / INMOTION PARTS Fits: 5.7L 350cid V8 | WS5092 | 🇺🇸 US 🇨🇦 CA | Housing Bore: 3 InMaterial: Silicone | View on Amazon |
| WJB / INMOTION PARTS Fits: 5.7L 350cid V8 | WS9845 | 🇺🇸 US | Housing Bore: 2.4089999999999998 InInside Diameter: 1.7629999999999999 In | View on Amazon |
This table covers the front and rear seals that keep oil in at the crankshaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
12 Crankshaft Seal parts are listed for the 1971 Checker Marathon, from FEL-PRO, NATIONAL, SCHAEFFLER and 4 other brands. FEL-PRO BS40013 carries the "Popular" badge.
Cylinder Head Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ARP Popular Fits: 5.7L 350cid V8 | 1343601 | 🇺🇸 US 🇨🇦 CA | SetHex Bolt Head | View on Amazon |
| FEL-PRO Popular Fits: 5.7L 350cid V8 | ES72856 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| APEX Fits: 5.7L 350cid V8 | AHB322 | 🇺🇸 US | Set | View on Amazon |
| ARP Fits: 5.7L 350cid V8 | 1343701 | 🇺🇸 US 🇨🇦 CA | SetBlack Oxide | View on Amazon |
| ARP Fits: 5.7L 350cid V8 | 1343703 | 🇺🇸 US 🇨🇦 CA | SetBlack Oxide Inner Rows, Stainless Steel Outer Row | View on Amazon |
| ARP Fits: 5.7L 350cid V8 | 1343603 | 🇺🇸 US 🇨🇦 CA | SetStainless Steel Hex Bolt Head | View on Amazon |
| ARP Fits: 5.7L 350cid V8 | 1344001 | 🇺🇸 US 🇨🇦 CA | Stud TypeHex Bolt Head | View on Amazon |
| VICTOR REINZ Fits: 5.7L 350cid V8 | 141004801 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
This table covers the bolts that clamp the cylinder head to the block.
8 Cylinder Head Bolt parts for the 1971 Checker Marathon come from 4 brands — ARP, FEL-PRO, APEX and 1 other brand. The "Popular" part is ARP 1343601.
Listed part numbers: ARP 1343601, FEL-PRO ES72856 and APEX AHB322, plus the other parts above.
Cylinder Head Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: 5.7L 350cid V8 | 7733PT2 | 🇺🇸 US 🇨🇦 CA | Permatorque | View on Amazon |
| FEL-PRO Popular Fits: 5.7L 350cid V8 | 501SD | 🇺🇸 US 🇨🇦 CA | Permatorque Severe Duty | View on Amazon |
| APEX Fits: 5.7L 350cid V8 | AHG322 | 🇺🇸 US | View on Amazon | |
| ENGINE PRO Fits: 5.7L 350cid V8 | 281000 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FEL-PRO Fits: 5.7L 350cid V8 | 7733SH1 | 🇺🇸 US 🇨🇦 CA | with Embossed Steel Head Gaskets | View on Amazon |
| FEL-PRO Fits: 5.7L 350cid V8 | 8651PT | 🇺🇸 US 🇨🇦 CA | with High Performance Engine | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | 1178VC | 🇺🇸 US 🇨🇦 CA | Composite | View on Amazon |
| VICTOR REINZ Fits: 5.7L 350cid V8 | 611031900 | 🇺🇸 US 🇨🇦 CA | 0.045 IN Thick | View on Amazon |
This table covers the head gaskets that seal the block to the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
8 Cylinder Head Gasket parts for the 1971 Checker Marathon come from 5 brands — FEL-PRO, APEX, ENGINE PRO and 2 other brands. The "Popular" part is FEL-PRO 7733PT2.
Part numbers include FEL-PRO 7733PT2, FEL-PRO 501SD and APEX AHG322, among others listed above.
Cylinder Head Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| APEX Popular Fits: 5.7L 350cid V8 | AHS3022 | 🇺🇸 US | View on Amazon | |
| FEL-PRO Popular Fits: 5.7L 350cid V8 | HS7733PT2 | 🇺🇸 US 🇨🇦 CA | 2-1/2 (In) Inside Diameter & 2-17/32 (In) Inside Diameter Exhaust Pipe Packing Not Included.2-17/32 (In) Inside Diameter Exhaust Pipe Packing Not Included | View on Amazon |
| FEL-PRO Fits: 5.7L 350cid V8 | HS7733SH2 | 🇺🇸 US 🇨🇦 CA | with Embossed Steel Head Gaskets2-17/32 (In) Inside Diameter Exhaust Pipe Packing Not Included | View on Amazon |
| FEL-PRO Fits: 5.7L 350cid V8 | HS7733PT2VK | 🇺🇸 US 🇨🇦 CA | 2-1/2 (In) Inside Diameter & 2-17/32 (In) Inside Diameter Exhaust Pipe Packing Not Included.Permatorque | View on Amazon |
| FEL-PRO Fits: 5.7L 350cid V8 | HS7733SH2VK | 🇺🇸 US 🇨🇦 CA | 2-17/32 (In) Inside Diameter Exhaust Pipe Packing Not Includedwith Embossed Steel Head Gaskets | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | HS1178BJ | 🇺🇸 US 🇨🇦 CA | Contains Beaded Steel Cylinder Head GasketIncludes Valve Stem Seals | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | HS1178VJ | 🇺🇸 US 🇨🇦 CA | Contains Composite Cylinder Head Gasket, Exhaust Pipe Gasket Not IncludedIncludes Valve Stem Seals | View on Amazon |
| VICTOR REINZ Fits: 5.7L 350cid V8 | 021007601 | 🇺🇸 US 🇨🇦 CA | with Multi-Layer Steel Head Gasket | View on Amazon |
This table covers multi-piece gasket sets for a cylinder-head job. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration.
8 Cylinder Head Gasket Set parts for the 1971 Checker Marathon come from 4 brands — FEL-PRO, MAHLE / CLEVITE, APEX and 1 other brand. The "Popular" part is APEX AHS3022.
Part numbers include APEX AHS3022, FEL-PRO HS7733PT2 and FEL-PRO HS7733SH2, among others listed above.
Cylinder Head Spacer Shim
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | 55138 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VICTOR REINZ Fits: 5.7L 350cid V8 | 711382900 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Cylinder Head Spacer shims.
2 Cylinder Head Spacer Shim parts for the 1971 Checker Marathon come from 2 brands — MAHLE / CLEVITE and VICTOR REINZ.
This group includes MAHLE / CLEVITE 55138 and VICTOR REINZ 711382900.
Engine Kit Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: 5.7L 350cid V8 | FS7733PT2 | 🇺🇸 US 🇨🇦 CA | 2-17/32 (In) Inside Diameter Exhaust Pipe Packing Not IncludedOverhaul Set | View on Amazon |
| FEL-PRO Popular Fits: 5.7L 350cid V8 | FS7733SH2 | 🇺🇸 US 🇨🇦 CA | Overhaul SetRear Main Seal Not Included | View on Amazon |
| APEX Fits: 5.7L 350cid V8 | AFS3022 | 🇺🇸 US | View on Amazon | |
| ENGINE PRO Fits: 5.7L 350cid V8 | 301000 | 🇺🇸 US | View on Amazon | |
| ENGINE PRO Fits: 5.7L 350cid V8 | 311000 | 🇺🇸 US | FEL-Pro CO-Branded Performance Gasket Sets with Permatorque Steel Core Laminate Head Gaskets | View on Amazon |
| ENGINE PRO Fits: 5.7L 350cid V8 | 311000MLS | 🇺🇸 US | FEL-Pro CO-Branded Perfomance Gasket Sets with MLS Head Gaskets | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | FS1178BJ | 🇺🇸 US 🇨🇦 CA | Contains Beaded Steel Cylinder Head GasketFull Gasket Set | View on Amazon |
| VICTOR REINZ Fits: 5.7L 350cid V8 | 011004401 | 🇺🇸 US 🇨🇦 CA | Multi Layered Steel | View on Amazon |
This table covers full gasket kits covering the joints opened in an engine rebuild. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration.
8 Engine Kit Gasket Set parts for the 1971 Checker Marathon come from 5 brands — ENGINE PRO, FEL-PRO, APEX and 2 other brands. The "Popular" part is FEL-PRO FS7733PT2.
Listed part numbers: FEL-PRO FS7733PT2, FEL-PRO FS7733SH2 and APEX AFS3022, plus the other parts above.
Exhaust Valve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | 2112486 | 🇺🇸 US 🇨🇦 CA | .341" STEM DIA1.500" HEAD DIA | View on Amazon |
This table covers the exhaust valves that let combustion gas out of the cylinder. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one.
One part is listed for the 1971 Checker Marathon — MAHLE / CLEVITE 2112486.
Harmonic Balancer
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ENGINE PRO Popular Fits: 5.7L 350cid V8 | PB2221ST | 🇺🇸 US 🇨🇦 CA | High Performance Street Series Damper 6.75" OD | View on Amazon |
| ENGINE PRO Popular Fits: 5.7L 350cid V8 | PB1012ST | 🇺🇸 US 🇨🇦 CA | High Performance Street Series Damper 6.10" OD | View on Amazon |
| ENGINE PRO Fits: 5.7L 350cid V8 | PB1046ST | 🇺🇸 US 🇨🇦 CA | High Performance Street Series Damper 8.00" OD | View on Amazon |
| ENGINE PRO Fits: 5.7L 350cid V8 | PB2221SS | 🇺🇸 US 🇨🇦 CA | SFI Race Series Damper 6.75" Outside Diameter | View on Amazon |
| ENGINE PRO Fits: 5.7L 350cid V8 | PB1012SS | 🇺🇸 US 🇨🇦 CA | SFI Race Series Damper 6.10" Outside Diameter | View on Amazon |
| ENGINE PRO Fits: 5.7L 350cid V8 | PB1046SS | 🇺🇸 US 🇨🇦 CA | SFI Race Series Damper 8.00" Outside Diameter | View on Amazon |
This table covers the crankshaft pulleys / harmonic balancers at the front of the engine.
6 Harmonic Balancer parts for the 1971 Checker Marathon come from ENGINE PRO. The "Popular" part is ENGINE PRO PB2221ST.
This group includes ENGINE PRO PB2221ST, ENGINE PRO PB1012ST and ENGINE PRO PB1046ST and the remaining parts above.
Harmonic Balancer Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ARP Fits: 5.7L 350cid V8 | 4306801 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ARP Fits: 5.7L 350cid V8 | 1342501 | 🇺🇸 US 🇨🇦 CA | 5/8 Socket Head | View on Amazon |
| ARP Fits: 5.7L 350cid V8 | 2342501 | 🇺🇸 US 🇨🇦 CA | 13/16 Socket Head | View on Amazon |
This table covers the Harmonic Balancer bolts.
ARP supplies the 3 Harmonic Balancer Bolt parts for the 1971 Checker Marathon.
Part numbers include ARP 4306801, ARP 1342501 and ARP 2342501.
Harmonic Balancer Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular Fits: 5.7L 350cid V8 | 88176 | 🇺🇸 US | Except flange tear line | View on Amazon |
| FEL-PRO Fits: 5.7L 350cid V8 | 16202 | 🇺🇸 US 🇨🇦 CA | Use with Installation Tool | View on Amazon |
| NATIONAL Fits: 5.7L 350cid V8 | 5000 | 🇺🇸 US 🇨🇦 CA | KitNitrile | View on Amazon |
| VICTOR REINZ Fits: 5.7L 350cid V8 | 711347500 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WJB / INMOTION PARTS Fits: 5.7L 350cid V8 | WS88176 | 🇺🇸 US | Material: Nickel Plated Formed Steel | View on Amazon |
This table covers the wear sleeves used to restore a Harmonic Balancer seal surface.
5 Harmonic Balancer Repair Sleeve parts are listed for the 1971 Checker Marathon, from NATIONAL, FEL-PRO, VICTOR REINZ and 1 other brand. NATIONAL 88176 carries the "Popular" badge.
Part numbers include NATIONAL 88176, FEL-PRO 16202 and NATIONAL 5000, among others listed above.
Intake Manifold Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ARP Fits: 5.7L 350cid V8 | 1342001 | 🇺🇸 US 🇨🇦 CA | Hex Bolt Head | View on Amazon |
| ARP Fits: 5.7L 350cid V8 | 1342101 | 🇺🇸 US 🇨🇦 CA | Black Oxide12 Point Bolt Head | View on Amazon |
| ARP Fits: 5.7L 350cid V8 | 4342001 | 🇺🇸 US 🇨🇦 CA | Stainless Steel Hex Bolt Head | View on Amazon |
| ARP Fits: 5.7L 350cid V8 | 4342101 | 🇺🇸 US 🇨🇦 CA | Stainless Steel12 Point Bolt Head | View on Amazon |
This table covers the Intake Manifold bolts.
4 Intake Manifold Bolt parts for the 1971 Checker Marathon come from ARP.
Listed part numbers: ARP 1342001, ARP 1342101 and ARP 4342001, plus the other parts above.
Intake Manifold Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: 5.7L 350cid V8 | MS903142 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| APEX Fits: 5.7L 350cid V8 | AMS3221 | 🇺🇸 US | Set | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | MS15315 | 🇺🇸 US 🇨🇦 CA | CompositeContains One Crossover Restrictor | View on Amazon |
| VICTOR REINZ Fits: 5.7L 350cid V8 | 111015801 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| VICTOR REINZ Fits: 5.7L 350cid V8 | 111062601 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
This table covers the gaskets between the intake manifold and the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
5 Intake Manifold Gasket parts for the 1971 Checker Marathon come from 4 brands — VICTOR REINZ, FEL-PRO, APEX and 1 other brand. The "Popular" part is FEL-PRO MS903142.
Part numbers include FEL-PRO MS903142, APEX AMS3221 and MAHLE / CLEVITE MS15315, among others listed above.
Intake Valve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | 2112072 | 🇺🇸 US 🇨🇦 CA | Intake Valve Carbureted Chrome | View on Amazon |
This table covers the intake valves that let air (and fuel, on port-injected engines) into the cylinder. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one.
One part is listed for the 1971 Checker Marathon — MAHLE / CLEVITE 2112072.
Oil Drain Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AGS Fits: 5.7L 350cid V8 | ODP00016 | 🇺🇸 US 🇨🇦 CA | 1/2-20 | View on Amazon |
| DORMAN Fits: 5.7L 350cid V8 | 090052 | 🇺🇸 US 🇨🇦 CA | Pilot PointThread Size | View on Amazon |
This table covers the drain plugs in the oil pan.
2 Oil Drain Plug parts are listed for the 1971 Checker Marathon, from AGS and DORMAN.
Listed part numbers: AGS ODP00016 and DORMAN 090052.
Oil Drain Plug Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: 5.7L 350cid V8 | 70822 | 🇺🇸 US 🇨🇦 CA | 0.500 (in) Inside Diameter x 0.900 (in) Outside DiameterFlat Washer | View on Amazon |
| VICTOR REINZ Popular Fits: 5.7L 350cid V8 | 711346200 | 🇺🇸 US 🇨🇦 CA | 0.500 IN Inside Diameter | View on Amazon |
| APEX Fits: 5.7L 350cid V8 | ADP1902 | 🇺🇸 US | View on Amazon | |
| DORMAN Fits: 5.7L 350cid V8 | 097022 | 🇺🇸 US 🇨🇦 CA | Nylon GasketSize | View on Amazon |
| NEEDA Fits: 5.7L 350cid V8 | 67270625 | 🇺🇸 US 🇨🇦 CA | Fits Gaskets Boxed 25 | View on Amazon |
| ULTRA-POWER Fits: 5.7L 350cid V8 | 097022 | 🇺🇸 US 🇨🇦 CA | ID: 0.504"NYLON GASKET | View on Amazon |
This table covers the crush washers and gaskets under the oil drain plug. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
6 Oil Drain Plug Gasket parts for the 1971 Checker Marathon come from 6 brands — FEL-PRO, VICTOR REINZ, APEX and 3 other brands. The "Popular" part is FEL-PRO 70822.
Listed part numbers: FEL-PRO 70822, VICTOR REINZ 711346200 and APEX ADP1902, plus the other parts above.
Oil Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH Fits: 5.7L 350cid V8 | 72238WS | 🇺🇸 US 🇨🇦 CA | Workshop Oil Filter | View on Amazon |
| CHAMP / LUBER-FINER Fits: 5.7L 350cid V8 | PH454 | 🇺🇸 US | Anti-Drain Back Valve: YESSpin-On Filter. | View on Amazon |
| PRO-TEC Fits: 5.7L 350cid V8 | PXL51069 | 🇺🇸 US 🇨🇦 CA | Thread Size: 13/16-16 InSpin-On Filter | View on Amazon |
| VARIOUS MFR Fits: 5.7L 350cid V8 | PG5313 | 🇺🇸 US 🇨🇦 CA | Spin-On | View on Amazon |
High Performance / Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOBIL Fits: 5.7L 350cid V8 | M1111A | 🇺🇸 US 🇨🇦 CA | Extended Performance | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 5.7L 350cid V8 | PF454 | 🇺🇸 US 🇨🇦 CA | GM Original EquipmentGasket Or Seal Included: YES | View on Amazon |
| WIX Popular Fits: 5.7L 350cid V8 | 51069 | 🇺🇸 US 🇨🇦 CA | Burst Pressure: 225 PSIStyle: Spin-On Lube Filter | View on Amazon |
| BOSCH Fits: 5.7L 350cid V8 | 3322 | 🇺🇸 US 🇨🇦 CA | Premium Oil Filter | View on Amazon |
| HASTINGS / BALDWIN Fits: 5.7L 350cid V8 | LF225 | 🇺🇸 US 🇨🇦 CA | Spin-On | View on Amazon |
This table covers the oil filters that screw onto this engine's filter mount. Typical signs include low oil pressure after a service, or a filter that will not spin off because the old gasket stayed on the block. Lube the new gasket and tighten to the spec on the box; a double-gasket install dumps the sump on the first drive.
9 Oil Filter parts are listed for the 1971 Checker Marathon, from BOSCH, CHAMP / LUBER-FINER, PRO-TEC and 5 other brands. ACDELCO PF454 carries the "Popular" badge.
In the Economy grade, BOSCH, CHAMP / LUBER-FINER, PRO-TEC and 1 other brand supply 4 parts: the catalog's value-priced group. A representative part number is BOSCH 72238WS.
In the High Performance / Heavy Duty grade, MOBIL supplies 1 part: grouped under the catalog's "High Performance / Heavy Duty" designation — the notes column spells out what sets them apart. A representative part number is MOBIL M1111A.
The Standard Replacement section: 4 options from ACDELCO, WIX, BOSCH and 1 other brand. ACDELCO PF454 is listed in this group.
Part numbers include ACDELCO PF454, BOSCH 72238WS and CHAMP / LUBER-FINER PH454, among others listed above.
Oil Pan Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ARP Popular Fits: 5.7L 350cid V8 | 2341802 | 🇺🇸 US 🇨🇦 CA | Black OxideHex Bolt Head | View on Amazon |
| ARP Fits: 5.7L 350cid V8 | 4341802 | 🇺🇸 US 🇨🇦 CA | With Standard 2 Piece Cork GasketStainless Steel Hex Bolt Head | View on Amazon |
| ARP Fits: 5.7L 350cid V8 | 2341901 | 🇺🇸 US 🇨🇦 CA | Stainless SteelHex Bolt Head | View on Amazon |
| ARP Fits: 5.7L 350cid V8 | 2341902 | 🇺🇸 US 🇨🇦 CA | 12 Point Bolt Head | View on Amazon |
| ARP Fits: 5.7L 350cid V8 | 4341804 | 🇺🇸 US 🇨🇦 CA | With 1 Piece Rubber GasketStainless Steel Hex Bolt Head | View on Amazon |
This table covers the Oil Pan bolts.
ARP supplies the 5 Oil Pan Bolt parts for the 1971 Checker Marathon. ARP 2341802 carries the "Popular" badge.
Part numbers include ARP 2341802, ARP 4341802 and ARP 2341901, among others listed above.
Oil Pan Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: 5.7L 350cid V8 | OS5197C2 | 🇺🇸 US 🇨🇦 CA | Cork | View on Amazon |
| FEL-PRO Popular Fits: 5.7L 350cid V8 | OS34509T | 🇺🇸 US 🇨🇦 CA | PermadryplusIncludes Snaps | View on Amazon |
| APEX Fits: 5.7L 350cid V8 | AOP322A | 🇺🇸 US | View on Amazon | |
| FEL-PRO Fits: 5.7L 350cid V8 | OS5197C4 | 🇺🇸 US 🇨🇦 CA | CorkExhaust Pipe Flange Gasket Included | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | OS30568X | 🇺🇸 US 🇨🇦 CA | Cork-Rubber | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | OS30568XTC | 🇺🇸 US 🇨🇦 CA | Cork with Metal Carrier | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | OS32458 | 🇺🇸 US 🇨🇦 CA | Rubber with Plastic Carrier | View on Amazon |
| VICTOR REINZ Fits: 5.7L 350cid V8 | 101017001 | 🇺🇸 US 🇨🇦 CA | 18 Bolt PanExcept Exhaust Pipe Packing | View on Amazon |
| VICTOR REINZ Fits: 5.7L 350cid V8 | 101010401 | 🇺🇸 US 🇨🇦 CA | with Exhaust Pipe Packing | View on Amazon |
| VICTOR REINZ Fits: 5.7L 350cid V8 | 101007901 | 🇺🇸 US 🇨🇦 CA | Improved Design | View on Amazon |
This table covers the gaskets between the oil pan and the block. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
10 Oil Pan Gasket parts are listed for the 1971 Checker Marathon, from FEL-PRO, MAHLE / CLEVITE, VICTOR REINZ and 1 other brand. FEL-PRO OS5197C2 carries the "Popular" badge.
Oil Pump Shaft
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ARP Fits: 5.7L 350cid V8 | 1347901 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Oil Pump shafts.
One part is listed for the 1971 Checker Marathon — ARP 1347901.
Oil Pump Shaft Guide / Retainer
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Fits: 5.7L 350cid V8 | 72665 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | H31354 | 🇺🇸 US 🇨🇦 CA | NylonRetainer Material: Plastic | View on Amazon |
| VICTOR REINZ Fits: 5.7L 350cid V8 | 711403800 | 🇺🇸 US 🇨🇦 CA | Distributor to oil pump shaft retainer | View on Amazon |
This table covers the Oil Pump Shaft Guide retainers.
3 Oil Pump Shaft Guide / Retainer parts for the 1971 Checker Marathon come from 3 brands — FEL-PRO, MAHLE / CLEVITE and VICTOR REINZ.
This group includes FEL-PRO 72665, MAHLE / CLEVITE H31354 and VICTOR REINZ 711403800.
Piston
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SILV-O-LITE Popular Fits: 5.7L 350cid V8 | 3437HC | 🇺🇸 US 🇨🇦 CA | Hyper-CoatedOffset Pin Configuration | View on Amazon |
| SILV-O-LITE Fits: 5.7L 350cid V8 | 3437HCK1 | 🇺🇸 US 🇨🇦 CA | Hyper-CoatedOffset Pin Configuration | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SILV-O-LITE Popular Fits: 5.7L 350cid V8 | 1479H | 🇺🇸 US 🇨🇦 CA | HypereutecticOffset Pin Configuration | View on Amazon |
| SILV-O-LITE Fits: 5.7L 350cid V8 | 1472 | 🇺🇸 US 🇨🇦 CA | Offset Pin ConfigurationPress Pin Type | View on Amazon |
| SILV-O-LITE Fits: 5.7L 350cid V8 | 1472K1 | 🇺🇸 US 🇨🇦 CA | Offset Pin ConfigurationPress Pin Type | View on Amazon |
| SILV-O-LITE Fits: 5.7L 350cid V8 | 1479HK1 | 🇺🇸 US 🇨🇦 CA | HypereutecticOffset Pin Configuration | View on Amazon |
This table covers the pistons that travel in each cylinder. Typical signs include knock, blow-by, or a cylinder that will not hold compression. Piston work is a short-block job. Match bore, pin and ring pack in the notes — not the photo.
6 Piston parts for the 1971 Checker Marathon come from SILV-O-LITE. The "Popular" part is SILV-O-LITE 3437HC.
In the Premium grade, SILV-O-LITE supplies 2 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is SILV-O-LITE 3437HC.
Standard Replacement: 4 parts, from SILV-O-LITE. A representative part number is SILV-O-LITE 1479H.
Part numbers include SILV-O-LITE 3437HC, SILV-O-LITE 3437HCK1 and SILV-O-LITE 1479H, among others listed above.
Rocker Arm
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SEALED POWER Fits: 5.7L 350cid V8 | R869 | 🇺🇸 US 🇨🇦 CA | Rocker Arm Kit BUICKOHV | View on Amazon |
This table covers the rocker arms that transfer cam motion to the valves.
One part is listed for the 1971 Checker Marathon — SEALED POWER R869.
Rocker Arm Stud
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ARP Fits: 5.7L 350cid V8 | 1347103 | 🇺🇸 US 🇨🇦 CA | Installed Height 1.770?Adjuster Thread Length 0.670? | View on Amazon |
| ARP Fits: 5.7L 350cid V8 | 1347104 | 🇺🇸 US 🇨🇦 CA | 3/8" With Roller Rocker | View on Amazon |
| ARP Fits: 5.7L 350cid V8 | 1347101 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ARP Fits: 5.7L 350cid V8 | 2347201 | 🇺🇸 US 🇨🇦 CA | 3/8-7/16" Rocker Arm Stud Kit | View on Amazon |
This table covers the Rocker Arm studs.
ARP supplies the 4 Rocker Arm Stud parts for the 1971 Checker Marathon.
Part numbers include ARP 1347103, ARP 1347104 and ARP 1347101, among others listed above.
Timing Cam Sprocket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CLOYES Popular Fits: 5.7L 350cid V8 | S390T | 🇺🇸 US | 0.41 in Tooth Width | View on Amazon |
| FVP Fits: 5.7L 350cid V8 | S390T | 🇺🇸 US | View on Amazon | |
| INA Fits: 5.7L 350cid V8 | ZSS390T | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| S.A. GEAR Fits: 5.7L 350cid V8 | S390T | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| S.A. GEAR Fits: 5.7L 350cid V8 | S390N | 🇺🇸 US 🇨🇦 CA | Nylon | View on Amazon |
This table covers the Timing Cam sprockets.
5 Timing Cam Sprocket parts are listed for the 1971 Checker Marathon, from S.A. GEAR, CLOYES, FVP and 1 other brand. CLOYES S390T carries the "Popular" badge.
This group includes CLOYES S390T and INA ZSS390T and the remaining parts above.
Timing Camshaft Gear Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ARP Fits: 5.7L 350cid V8 | 2341001 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Timing Camshaft Gear bolts.
This group shows a single part: ARP 2341001.
Timing Chain
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CLOYES Fits: 5.7L 350cid V8 | C499 | 🇺🇸 US | Silent Chain | View on Amazon |
| FVP Fits: 5.7L 350cid V8 | C499 | 🇺🇸 US | Silent Chain.40 In./.41 In. Tooth Width | View on Amazon |
| INA Fits: 5.7L 350cid V8 | ZCC499 | 🇺🇸 US 🇨🇦 CA | Link Quantity: 46 | View on Amazon |
| S.A. GEAR Fits: 5.7L 350cid V8 | C499 | 🇺🇸 US 🇨🇦 CA | Chain | View on Amazon |
This table covers the timing chains that keep the cams in time with the crank.
4 Timing Chain parts for the 1971 Checker Marathon come from 4 brands — CLOYES, FVP, INA and 1 other brand.
Part numbers include CLOYES C499 and INA ZCC499, among others listed above.
Timing Chain & Component Kit
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Fits: 5.7L 350cid V8 | CHK196 | 🇺🇸 US 🇨🇦 CA | Includes Timing Chain, 2 Sprockets | View on Amazon |
| S.A. GEAR Fits: 5.7L 350cid V8 | 73001 | 🇺🇸 US 🇨🇦 CA | Includes Cam Sprocket, Chain, Crank Sprocket | View on Amazon |
| SKP Fits: 5.7L 350cid V8 | SKC3001K | 🇺🇸 US | Includes: Camshaft Sprocket, Crankshaft Sprocket, Chain | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CLOYES Popular Fits: 5.7L 350cid V8 | C3001K | 🇺🇸 US | Set Contains: Timing Chain, Crankshaft Sprocket, Camshaft SprocketSilent Chain | View on Amazon |
| INA Fits: 5.7L 350cid V8 | ZC1065K | 🇺🇸 US 🇨🇦 CA | Kit Contains 1 Chain, 1 Cam Sprocket, 1 Crank SprocketIncludes Chain Protect Additive | View on Amazon |
This table covers kits that group a timing chain with the related tensioners and guides.
5 Timing Chain & Component Kit parts are listed for the 1971 Checker Marathon, from GATES, S.A. GEAR, SKP and 2 other brands. CLOYES C3001K carries the "Popular" badge.
Economy: 3 parts, from GATES, S.A. GEAR and SKP. A representative part number is GATES CHK196.
The Standard Replacement section: 2 options from CLOYES and INA. CLOYES C3001K is listed in this group.
This group includes CLOYES C3001K, GATES CHK196 and S.A. GEAR 73001 and the remaining parts above.
Timing Cover Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: 5.7L 350cid V8 | TCS51241 | 🇺🇸 US 🇨🇦 CA | Repair Sleeve Not Included | View on Amazon |
| APEX Fits: 5.7L 350cid V8 | ATC3220 | 🇺🇸 US | View on Amazon | |
| FEL-PRO Fits: 5.7L 350cid V8 | TCS45165 | 🇺🇸 US 🇨🇦 CA | with Sleeve 'N' Seal | View on Amazon |
| VICTOR REINZ Fits: 5.7L 350cid V8 | 151034001 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| VICTOR REINZ Fits: 5.7L 350cid V8 | 151026301 | 🇺🇸 US 🇨🇦 CA | SetDoes Not Include RTV | View on Amazon |
This table covers the gaskets that seal the Timing Cover. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
5 Timing Cover Gasket parts are listed for the 1971 Checker Marathon, from FEL-PRO, VICTOR REINZ and APEX. FEL-PRO TCS51241 carries the "Popular" badge.
Part numbers include FEL-PRO TCS51241, APEX ATC3220 and FEL-PRO TCS45165, among others listed above.
Timing Cover Repair Sleeve Tool
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Fits: 5.7L 350cid V8 | 16312 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Timing Cover Repair Sleeve tools. This is a service tool, not a wear part — match the application in the notes.
One part is listed for the 1971 Checker Marathon — FEL-PRO 16312.
Timing Crank Sprocket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CLOYES Fits: 5.7L 350cid V8 | S391 | 🇺🇸 US | with 18 Teeth on Crankshaft | View on Amazon |
| FVP Fits: 5.7L 350cid V8 | S391 | 🇺🇸 US | with 18 Teeth on Crankshaft | View on Amazon |
| INA Fits: 5.7L 350cid V8 | ZSS391 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| S.A. GEAR Fits: 5.7L 350cid V8 | S391 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the crankshaft sprockets that drive the timing chain or belt.
4 Timing Crank Sprocket parts are listed for the 1971 Checker Marathon, from CLOYES, FVP, INA and 1 other brand.
This group includes CLOYES S391 and INA ZSS391 and the remaining parts above.
Valve Cover Gasket
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: 5.7L 350cid V8 | VS12869T | 🇺🇸 US 🇨🇦 CA | Permadryplus | View on Amazon |
| VICTOR REINZ Fits: 5.7L 350cid V8 | 151057501 | 🇺🇸 US 🇨🇦 CA | SetImproved Design | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: 5.7L 350cid V8 | VS12869 | 🇺🇸 US 🇨🇦 CA | Cork | View on Amazon |
| FEL-PRO Popular Fits: 5.7L 350cid V8 | VS12869R | 🇺🇸 US 🇨🇦 CA | Rubber | View on Amazon |
| APEX Fits: 5.7L 350cid V8 | AVC322 | 🇺🇸 US | 5/32" Thick | View on Amazon |
| APEX Fits: 5.7L 350cid V8 | AVC322T | 🇺🇸 US | 7/32" Thick | View on Amazon |
| FEL-PRO Fits: 5.7L 350cid V8 | VS12869AC | 🇺🇸 US 🇨🇦 CA | Cork | View on Amazon |
| FEL-PRO Fits: 5.7L 350cid V8 | VS50265C | 🇺🇸 US 🇨🇦 CA | High Temperature DesignCork | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | VS38110 | 🇺🇸 US 🇨🇦 CA | Cork-RubberMounting Hole Quantity: 12 | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | VS38110R | 🇺🇸 US 🇨🇦 CA | SetMolded Rubber | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | VS38110TC | 🇺🇸 US 🇨🇦 CA | Cork with Metal CarrierMounting Hole Quantity: 8 | View on Amazon |
| ULTRA-POWER Fits: 5.7L 350cid V8 | VS12869 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| VICTOR REINZ Fits: 5.7L 350cid V8 | 151058701 | 🇺🇸 US 🇨🇦 CA | SetCork | View on Amazon |
| VICTOR REINZ Fits: 5.7L 350cid V8 | 151050201 | 🇺🇸 US 🇨🇦 CA | SetHigh Temperature Design | View on Amazon |
| VICTOR REINZ Fits: 5.7L 350cid V8 | 151050101 | 🇺🇸 US 🇨🇦 CA | SetCork | View on Amazon |
This table covers the gaskets that seal the valve cover to the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
15 Valve Cover Gasket parts are listed for the 1971 Checker Marathon, from FEL-PRO, VICTOR REINZ, MAHLE / CLEVITE and 2 other brands. FEL-PRO VS12869T carries the "Popular" badge.
The Premium section: 2 options from FEL-PRO and VICTOR REINZ. FEL-PRO VS12869T is listed in this group.
The Standard Replacement section: 13 options from FEL-PRO, MAHLE / CLEVITE, VICTOR REINZ and 2 other brands. FEL-PRO VS12869 is listed in this group.
Valve Cover Load Spreader
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Fits: 5.7L 350cid V8 | ES72676 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | GS33825 | 🇺🇸 US 🇨🇦 CA | Engine Valve Cover Load Spreader SetSteel | View on Amazon |
| VICTOR REINZ Fits: 5.7L 350cid V8 | 181003401 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Valve Cover Load spreaders.
3 Valve Cover Load Spreader parts for the 1971 Checker Marathon come from 3 brands — FEL-PRO, MAHLE / CLEVITE and VICTOR REINZ.
Listed part numbers: FEL-PRO ES72676, MAHLE / CLEVITE GS33825 and VICTOR REINZ 181003401.
Valve Guide
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | 2173193 | 🇺🇸 US 🇨🇦 CA | ID 0.343"OD 0.502" | View on Amazon |
This table covers the pressed-in bronze and cast-iron guides that align valve stems. Typical signs include oil smoke on startup, a guide that has gone oval, or a valve that no longer seats quietly. Guides are a machine-shop fit. Confirm stem diameter in the notes before ordering.
One part is listed for the 1971 Checker Marathon — MAHLE / CLEVITE 2173193.
Valve Lifter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | 2131638 | 🇺🇸 US 🇨🇦 CA | Lifter Type: Hydraulic Flat TappetHydraulic | View on Amazon |
This table covers the lifters / tappets that transfer cam motion to the valves.
One part is listed for the 1971 Checker Marathon — MAHLE / CLEVITE 2131638.
Valve Seat
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | 2187493 | 🇺🇸 US 🇨🇦 CA | Exhaust Valve Seat Carbureted | View on Amazon |
This table covers the Valve seats.
This group shows a single part: MAHLE / CLEVITE 2187493.
Valve Stem Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: 5.7L 350cid V8 | SS5112 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| APEX Fits: 5.7L 350cid V8 | AVS3022 | 🇺🇸 US | Set | View on Amazon |
| FEL-PRO Fits: 5.7L 350cid V8 | SS10058 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| VICTOR REINZ Fits: 5.7L 350cid V8 | 121001801 | 🇺🇸 US 🇨🇦 CA | SetContains 8 Pieces | View on Amazon |
| VICTOR REINZ Fits: 5.7L 350cid V8 | 121004001 | 🇺🇸 US 🇨🇦 CA | SetContains 16 Pieces | View on Amazon |
This table covers the seals on each valve stem that control oil into the guides. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
5 Valve Stem Seal parts are listed for the 1971 Checker Marathon, from FEL-PRO, VICTOR REINZ and APEX. FEL-PRO SS5112 carries the "Popular" badge.
This group includes FEL-PRO SS5112, APEX AVS3022 and FEL-PRO SS10058 and the remaining parts above.
Buying Engine Parts for a 1971 Checker Marathon
On this vehicle, the engine covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components.
- Match the engine first. Every engine part here is engine-specific; each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Connecting Rod Bearing and Crankshaft Main Bearing .
Frequently Asked Questions
How many engine parts fit the 1971 Checker Marathon?
Our catalog currently lists 245 engine parts for the 1971 Checker Marathon across 46 subcategories and 31 brands, covering both the 4.1L 250cid L6 and the 5.7L 350cid V8. Each part is matched to the engine(s) it fits.
Do engine parts differ between 1971 Checker Marathon engines?
Yes. Every engine part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of engine problems on a 1971 Checker Marathon?
Common symptoms include oil spots under the vehicle, blue or white exhaust smoke, ticking from the valvetrain, or coolant mysteriously disappearing. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 1971 Checker Marathon was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 1971 Checker Marathon?
First match the engine — each row shows which engine(s) the part fits. Then engine hard parts are unforgiving of guesswork — confirm the casting or engine code before ordering, because one model year can hide two different blocks. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 1971 Checker Marathon
Engine Parts for Other Checker Marathon Years
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