head gaskets sbc vortec?
09-09-2012, 10:43 AM
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head gaskets sbc vortec?
what fel pro head gasket should i use for a sbc 350h.o. 330hp vortec heads ,having some porting and gasket matching done to the heads,and a cam change.does felpro make a ful set for this set up.in jegs its part number 809-19210007 350ho base,says for pre 1978.HELP.THANK YOU
09-09-2012, 11:13 AM
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FelPro 17232 is a full set, but it comes with a composite head gasket and stock-style (meaning prone to leaking) intake gaskets. I think the head gasket is too thick.
Quench should be right at .039. Figuring that the piston is .020 to .025" down the hole at TDC, you need a gasket that is .020 .015" to maintain the designed quench figure. This is how I ran my Vortec engine in the Stinger. That would be really tight on the quench so make sure your pistons are where they should be.
Go with a FelPro Q1094 (rubber coated .015 shim). I believe Dennis Moore even recommends these in his book on small block performance. Use FelPro 1255 paper gaskets for the intake.
That's how I'd do it.
Quench should be right at .039. Figuring that the piston is .020 to .025" down the hole at TDC, you need a gasket that is .020 .015" to maintain the designed quench figure. This is how I ran my Vortec engine in the Stinger. That would be really tight on the quench so make sure your pistons are where they should be.
Go with a FelPro Q1094 (rubber coated .015 shim). I believe Dennis Moore even recommends these in his book on small block performance. Use FelPro 1255 paper gaskets for the intake.
That's how I'd do it.
