383 deck clearance

Mrmopartech said

From years of doing engines,the piston to deck spec is normally in the .025-.050 on the performance 383 engines,the lower the compression of the stock motor,the more piston to deck height increases,as the pin center line to piston crown decreases,mrmopartech

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I've never found them to be that close. The average is running closer to .060" down in the bore. One was .086. To get to zero deck we had to cut the decks that far... Factory HP pistons were designed to be .020-.030 but the blocks are always much taller than the blueprint deck height - so you have to cut them way down just to get to blueprint distance. Every block is different.