Builder had messed up the push rod length in my daughter's 67 Coronet 500. This led me to changing the lifters in the engine.

I have 26 runs on the engine and maybe 200 street miles.

So I pulled the lifters out. 6 or 7 lifters are bad with 2 to 3 of those being pretty bad. No idea on the condition on the cam, but my bet is it is hurt. I will be calling comp cams on Monday to get their opinion. My current plan is to go ahead and put it back together with the new lifters put some runs on it and limit street miles.

I guess I will put a hydraulic roller cam in it when I put the motor in the GTX.

I thought I did everything right. I was running 20W-50 Valvoline VR1 racing oil.

AAAARRRRGGGGHHHH!

Is anyone having luck running flat tappet cams nowadays?


67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......