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Originally Posted by Kev70ss  I just bought a set of sportsman II heads, since the stud was pulling out of my camel humps. The engine is a 350 either bored .030 or .060 i cant remember which one. I want to achieve around 11:1 compression. My question is do you use the gasket bore exactly the same as the engine bore? and also do stock size pushrods work or do i need longer ones with these heads? |
Gonna need some more info to get you on the right track to 11:1 compression. Most notably, what piston are you running, flat top, dome, dish? Also, do you know the volume (cc) of the valve reliefs, dome or dish? As far as gasket bore, no, it won't be the same as the block. It'll be a bit larger. I think the Fel Pro's are 4.166". Stock push rods may work, but there are other factors besides the heads that come into play there. You really need to measure for proper length. You can get pushrod length checking tools from any of your favorite speed shops. They're not a big ticket item, $20 or so.