1985-1986 ACDelco Spark Plugs Cast Iron Heads Car Set
If your 1985 or early 1986 Corvette is starting to feel a little lazy off the line or idling like it partied too hard the night before, it might be begging for a fresh set of plugs. These ACDelco R43TS spark plugs are the real deal for cast iron head C4s and they do way more than just make sparks. The super-ceramic one piece insulator shrugs off heat, pressure and vibration like it's nothing, the copper core dumps heat exactly where it needs to go, and the hot tip insulator keeps the plug firing clean and strong instead of letting carbon build up and kill your performance. Long story short, these plugs help your Corvette run smoother, start easier, respond quicker and generally remind you why you bought a V8 in the first place. Grab the full set and let your C4 run like it should.
- Fits 1985 and early 1986 Corvette with cast iron cylinder heads
- ACDelco R43TS spark plugs set for factory correct performance
- Copper core electrode improves heat transfer and resists carbon fouling
- Super ceramic insulator increases strength and shock resistance
- Hot tip insulator promotes long electrode life and consistent firing
- OEM replacements for 05613325, 19157983, 19300382, 5613325, R43CTS6H
Also known under these part numbers: (For reference only)