ZZ4 Aluminum Cylinder Head Assembly (exhaust) ZZ4 Aluminum ... Cylinder Head Assembly (combustion chamber) ZZ4 ... Aluminum Cylinder Head Assembly (intake) 147 THE ZZ4 ALUMINUM ... HEAD The L98 Corvette small-block was a ... because of the lightweight aluminum heads that were used on that engine. GM ... Parts now offers you that same cylinder head in one complete assembly that features ... endless. 12556463 ZZ4 Aluminum Cylinder Head Assembly Aluminum performance head ... in studs (3/8" top, 7/16" bottom) Use head gaskets with stainless steel fire rings ... are raised .100", requires Fel-pro gasket #1470 Use rail type rockers P/N ... , or kit P/N 12370838 (rollers!) This head is assembled with the following ... Valve Stem Seals 10212809 Valve Spring Shims 12564852 Valve Locks 12552126 3/8" ...
Fast Burn Cylinder Head (intake) A Fast Burn Cylinder Head ( ... combustion chamber) A THE LT4 ALUMINUM HEAD Like the L98 Corvette head, the LT4 ... GM performance small-blocks. The LT4 head has the latest in GM Performance Parts ... of our high-end quality materials. This head can only be used on 1992-and-newer LT1 ... engines. 12363287 LT4 Aluminum Cylinder Head Assembly (not shown) Aluminum ... performance head Can only be used on 1992-newer LT1 ... in studs (3/8" top, 7/16" bottom) Use head gaskets with stainless steel fire rings ... are raised .100 , requires Fel-pro gasket #1470 Use rail type rockers P/N ... , or kit P/N 12370838 (rollers!) This head is assembled with the following ... Valve Springs 10212809 Valve Spring Shims 12552126 3/8" Rocker Studs 24503856 ... Valve Locks ALUMINUM FAST BURN HEADS When it comes time to own the street, ...