Seller notes

This auction is for a pair of brand new assembled aluminum big block Chevy cylinder heads. These are rectangle port cylinder heads with open style 119cc combustion chambers and 320cc intake runners. In addition to the nearly 80lb weight savings these heads offer over factory cast iron heads, they will yield about a 40hp gain over stock GM 990 castings. In unported form these heads will support 500+ horsepower on pump gas. If you are looking for a race grade head that is comparable to Edelbrock, ...

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