When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
You can simply use the stock a/c delco plugs listed for your year model and make.I dont know the correct part number so youll have to get it from the store or dealer.
If you want to use an aftermarket plug,use NGK. Those are the best plugs I ever used on my other GM cars.They are really good quality plugs.
From: 1994 LT1 Coupe 6-speed with FX3 & 2000 LS1 Vert 6-Speed with F45 Hunterdon County, NJ
Even though many will recommend the ACDelco's, if your year Vette calls for the Platinum plugs -- the issue of the ACDelco plugs loosing their 'pucks' is real and does happen (i.e. spot of platinum on the inside of the ground electrode) -- when I pulled the plugs (25k or so) on our 94 LT1 engine, 3 plugs were missing their 'pucks'.
Suggest going with NGK Iridium's (e.g. TR55ix) if applicable to your year.
Alternatively, Platinum Nipondenso's run very well (were in our 2000 TransAm with the LS1 (c5) engine -- had 112k and still looked good (with no lost pucks either).