Quote:
Originally Posted by creeper
don't the truck heads lower compression?
I know some of the truck heads flow well, but they need to be milled to get the compression back I believe
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General rule is 5.3 heads bump comp and 6.0 heads drop it...
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1999 Z28 Convertible. 6 speed swap, wide cowl hood, full hockey stripes, and a whining 10 bolt.
2008 Sierra Vortec Max. 6.2 swapped, headers, Magnaflow catback, GMPP CAI, NHT optioned tow package.
2006 GTO, 11.48 @ 118.3
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