Small block heads

stroker416 said

I say dont mill. If you really want to use the 340 heads get taller pistons and a thinner head gasket. Take about .010" off the heads to get the chambers down to 69cc, a piston that sits about .011" in the hole and mopar gaskets that compress .024"-.026" with a 4.060" bore and you'll get about 9.5:1 compression. that's if you really, really want to use the 340 heads.

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I agree on that. My heads were milled when i got them so i ran with them like that. I'm one for the 340/360 heads. But make sure your combo is well rounded and it all works together.

My motor isnt much more than a 318 - .030, a decent cam, the stock (but milled) j-heads, alum intake and a pair of headers...I'm lookin at likely high 13s on my next outing so it's doing well for being what it is. They can put out some decent power.

Good luck!
-Mike