8 Ignition parts are listed for the 1966 Ferrari 330 GTS, in 2 part types, covering the 4.0L V12 engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 1966 Ferrari 330 GTS, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. All 8 listed parts are Spark Plug (7 parts) and Ignition Conversion Kit (1 part).
The 1966 Ferrari 330 GTS came with a single engine, the 4.0L V12, and every part is verified against it.
4 brands supply ignition parts for the 1966 Ferrari 330 GTS, led by CHAMPION (5 parts), WELLS (1 part) and AUTOLITE (1 part), plus 1 more brand. Quality grades include Copper / Nickel, Double Platinum and Iridium.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1966 Ferrari 330 GTS. 2 parts have it, including CHAMPION 7415 (Spark Plug) and CHAMPION 9804 (Spark Plug). Each part number opens a page with every vehicle that part fits.
Ignition Conversion Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 1A4176 | 🇺🇸 US | Marelli, Dual Distributor applications, Kit Contains 1 module for each Distributor, with 3 lobe contact cam, contact cam felt bracket removal required12 Volt | View on Amazon |
This table covers the Ignition Conversion kits.
One part is listed for the 1966 Ferrari 330 GTS — WELLS 1A4176.
Spark Plug
Summary: Notes include pre-set gaps of 0.020", 0.024", 0.025", 0.03", 0.032" and 0.035". Replacement brands in this table include CHAMPION, AUTOLITE and ACDELCO.
Copper / Nickel
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTOLITE | AR51 | 🇺🇸 US | High Performance Racing Non-ResistorPre-Set Gap: 0.025" | View on Amazon |
| CHAMPION | 315 | 🇺🇸 US | Copper PlusPre-Set Gap: 0.025" | View on Amazon |
| CHAMPION | 332 | 🇺🇸 US | Copper PlusPre-Set Gap: 0.025" | View on Amazon |
| CHAMPION | 3321 | 🇺🇸 US | Copper Plus | View on Amazon |
Double Platinum (lasts up to 3x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CHAMPION Popular | 7415 | 🇺🇸 US | Double Platinum PowerPre-Set Gap: 0.032" | View on Amazon |
| ACDELCO | 41804 | 🇺🇸 US 🇨🇦 CA | ProfessionalDouble Platinum | View on Amazon |
Iridium (lasts up to 4x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CHAMPION Popular | 9804 | 🇺🇸 US | IridiumPre-Set Gap: 0.03" | View on Amazon |
This table covers the spark plugs for this engine. Typical signs include misfire under load, rough idle, or a flashing check-engine light. Verify the gap even on pre-gapped plugs, and replace coil boots that come off a high-mileage engine.
7 Spark Plug parts are listed for the 1966 Ferrari 330 GTS, from CHAMPION, AUTOLITE and ACDELCO. CHAMPION 7415 carries the "Popular" badge.
In the Copper / Nickel grade, CHAMPION and AUTOLITE supply 4 parts: grouped under the catalog's "Copper / Nickel" designation — the notes column spells out what sets them apart. A representative part number is AUTOLITE AR51.
In the Double Platinum (lasts up to 3x longer than Copper / Nickel) grade, CHAMPION and ACDELCO supply 2 parts: grouped under the catalog's "Double Platinum (lasts up to 3x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. A representative part number is CHAMPION 7415.
The Iridium (lasts up to 4x longer than Copper / Nickel) section lists 1 option from CHAMPION — grouped under the catalog's "Iridium (lasts up to 4x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. CHAMPION 9804 is listed in this group.
Part numbers include CHAMPION 7415, AUTOLITE AR51 and CHAMPION 315, among others listed above.
Buying Ignition Parts for a 1966 Ferrari 330 GTS
On this vehicle, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.
- Confirm you have the 4.0L V12 engine — every part on this page is matched to it.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace plugs and wires (or coil boots) as a set — one weak cylinder makes the whole set feel bad.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Spark Plug and Ignition Conversion Kit .
Frequently Asked Questions
How many ignition parts fit the 1966 Ferrari 330 GTS?
Our catalog currently lists 8 ignition parts for the 1966 Ferrari 330 GTS across 2 subcategories and 4 brands, covering the 4.0L V12 engine. Each part is matched to the engine(s) it fits.
What are the signs of ignition problems on a 1966 Ferrari 330 GTS?
Common symptoms include misfires under load, rough idle, flashing check-engine light, or poor starting in damp weather. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What spark-plug gap is listed for the 1966 Ferrari 330 GTS?
Notes on this page include pre-set gaps of 0.020", 0.024", 0.025", 0.03", 0.032" and 0.035". Still verify against spec — even “pre-gapped” plugs should be checked before they go in.
What should I replace at the same time?
Where labor overlaps, replace plugs and wires (or coil boots) as a set — one weak cylinder makes the whole set feel bad.
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 1966 Ferrari 330 GTS 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 1966 Ferrari 330 GTS?
Every part on this page is matched to the 4.0L V12 engine. Then gap matters even on “pre-gapped” plugs — verify against spec, and replace coil boots when they come off a high-mileage engine. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 1966 Ferrari 330 GTS
Ignition Parts for Other Ferrari 330 GTS Years
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