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These Hooker BlackHeart cast iron exhaust manifolds have a 2.25 inch outlet, black ceramic finish and are designed to hug close to the engine block so they fit into a wide variety of replacement and engine-swap applications. Their contoured design aims the exhaust directly toward the exit port for improved flow. Being cast iron means they will provide years of leak-free performance with less under hood noise than traditional headers. Plus, their shorty design means you can route exhaust tubing close to your frame/floor pan for maximum ground clearance. Intended for GM LS engine swap applications where durability, quiet operation, and leak-free sealing is desired
Black ceramic coating for reduced engine compartment temps and improved corrosion resistance
304 stainless steel mating flanges included (mating flange fasteners are not included)
2.25 inch outlet diameter offers improved flow for maximum performance from a cast iron exhaust manifold
2 bolt exit flange configuration matches the E-rod exhaust manifolds for a factory like fitment. This allows the use of OE gaskets and fasteners if desired, for an OE quality seal and fitment to emissions devices
Cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance
Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance
Perfect complement to Hooker engine swap mount plates and Holley engine swap oil pans