ACDelco 41-993 Professional Iridium Spark Plug (Pack of 4)

I searched quite a bit for the proper spark plugs for my 1997 Chevrolet Pickup 5.7L V8 and found these to be the very best ones that I could use. Basically the OE spark plugs that GM used originally in the engine, with the iridium upgrade. I could tell right away after firing up the truck and the engine idling that I picked the right ones. It's never run better. I recommend these for a GM 5.7L "Vortec" engine, I believe from 1994 to 1998.

I bought a couple 4 packs for $35 each. I used them on a brand new GM 350 crate engine, gapped to .045 and the engine started fine and runs great!At time of review though these have shot up to $70 per pack! Not sure I would have bought them at that price.

ACDelco never fails to disappoint.

Genuine AC Delco iridium plugs, came properly pre-gapped for my 98 K1500 5.7 Vortec. Decent pricing, would order again.

ACDelco nothing more needs to be said.