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Old 02-20-2008, 07:07 PM
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Valve/Piston Clearance

Im building a 327 ci small block chevy and Ive got another quick question.

The pistons have a small D shaped dome and shallow flycuts. Might be the old 11:1 pistons? The heads are '642' castings. 76cc chambered boat anchors.

Isky cam - .505 lift, 292 duration, 244 @ .050.
1.5 ratio rocker arms.

Will I run into valve/piston clearance trouble with this setup?

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Old 02-20-2008, 07:12 PM
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Nobody can say definitively. Depends on whether the block has been cut, the heads have been cut, how far the valves are sunk in the heads, piston deck height, gasket thickness, rocker arm ratio (actual) and etc., etc.

Scroll down to "How to check for clearance between valves and pistons"
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