Finally a small step forward. Checked piston to valve clerance today with play-doh. I didn't bother measuring what seems to be about a 1/4". HUGE clearance.

I am happy about that, but I have to ask those with more experience, is this normal? This is the first Chevy inline I ever worked on so I'm still a newbie to these engines.

Zero deck, Comp Cams 268H grind with .499" lift. Timed straight up. Looks like there's plenty of room to experiment with cam timing if need be.




Last edited by 70Nova; 11/02/14 03:39 PM.