Valve Clearance on Larger Camshaft and Flat Top Pistons

DC 340 said
Once you move ahead, I would definitely check valve to piston with checker springs/dial indicator to see where you are at (forget clay).

I always went by 0.080 minimum on intakes, 0.120 minimum on exhaust. I was always insane (7200 rpm plus) and I never hit an intake at real close to 0.080, but I did tap the piston carbon on one exhaust valve at 0.109 clearance. Just a data point to consider.

I cut a set of pent roof hemi prostock pistons down to legal superstock height back when I switched to superstock , they bairly touched the heads at high rpm , Tom Hoover told me, (at a chrysler seminr, in OKC) , he gave) that is just right if it didnt cause any problems , just kept the carbon off the pistons where they touched ...ran for about 10yrs that way...