Valve Clearance

Aaron Majcan said

I had 1.848" compression height pistons in it already that came with my block when I bought it and it put me 0.090"down hole at TDC when installed them. I found 1.92" flat tops that will get me much closer to zero deck. I didnt think to measure my piston clearance before I pulled them out. Rookie mistake.

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If I have this right, you already have your block rough bored .040? Why not buy one cast .040 piston with less compression distance than you want to run and mock it up, see what you have for valve clearance and add compression height to it mathematically. Check for deck squareness at the same time.

I'm told that 383's are a little more critical when it comes to PV clearance because of the shorter stroke/longer dwell time of the piston.