Hooker Exhaust Manifolds - 2-1/2 in Outlet - Black Ceramic - Small Block Chevy (Pair) 13100905 includes SFI tag

includes SFI tag

weld-in 3-1/2" long threaded pipe adapters

Bolts onto 6 bolt internally balanced crankshaft with 10-inch and 11

Strip Rotating Assemblies are perfect for pump gas

Hooker Exhaust Manifolds - 2-1/2 in Outlet - Black Ceramic - Small Block Chevy (Pair) 13100905 includes SFI tagThese manifolds do not fit 1st generation F Body cars. These cast exhaust manifolds have been designed to fit into a wide variety of replacement and engine swap applications, with final outlet connections to be fabricated by the installer. The manifolds will not directly bolt onto factory downpipes. Made from high silicon molybdenum ductile iron for high temperature strength plus resistance to oxidation and cracking Designed with a larger 1 5 8" cross