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Registered
Join Date: Dec 2005
Location: Silver Spring, MD
Posts: 57
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You can machine the bottom sealing surface of each cylinder to achieve the exact piston to head clearance desired. I built (retired now) successful race engines and always ran them much closer than the 1.25mm minimum Wayne suggests. Since P-H clearance is determined by deck height, I'd say in this case the measurements are synonymous. Put the clearance where you want and don't worry about any clash.
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michaelmount
Motorsports Engine Development (Retired)
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