Seller notes

This auction is for a Top End Kit which Includes: a pair of brand new assembled aluminum big block Chevy cylinder heads, Cylinder Head Bolts, Guide Plates, Rocker Studs, and Stainless Steel Roller Rockers. These are large oval port cylinder heads with open style 115cc combustion chambers and 300cc 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 ...

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