piston knock
Thread Starter
Heel & Toe
Joined: Apr 2010
Posts: 18
Likes: 0
From: Moorhead Minnesota
piston knock
hello fellow vette owners. I have a 383 long stroke with keith black hyper pistons that are very noisey when cold. after about 5 minutes the quite down and engine runs quieter. and seems have a lot of grinding noise from below intake (stealth ram all roller valve train) that does not go away. is this normal or is may camshaft bouncing around. when stock with roller valve train it was quiet. have bronze dist.gear made some diif. but is still very loud. need help.
