bbc clearances
My buddy's engine is coming up a little tighter than I've been.
Drag only 427+.030 bbc with GM 1077 aluminum heads, steel rods, older Manley 12.5 pistons turning 7300 tops.
Piston is out .003 and he wants to use a .039 compressed gasket. Piston to wall clearance is .005 -.007, is this quench too tight?
He has loads of piston to valve clearance except radially. He used clay and has .030-.040 at the center of the piston, where the little triangle is. Too tight?
Thanks for any help
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