Hi-Silicon-Moly Ductile Iron Cast Iron Titanium Ceramic Coated Exhaust Manifold (8501-4HKR) by Hooker®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 2.25". Color: Silver. Header Coating: Ceramic. Hooker cast iron exhaust manifolds have been 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 at the exit port for improved flow.
Free-flowing for good performance and catalytic converter efficiency
304 stainless steel mating flanges included (mating flange fasteners are not included)
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 - ideal for GM E-Rod installations
Recommended for strong performance on engines making up to 500 horsepower (For optimum high rpm performance see Hooker long tube engine swap headers)
Perfect compliment to Hooker engine swap mount plates and Holley engine swap oil pans
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. "Hook" up your GM LS engine with Hooker cast iron manifolds today! Intended for all GM LS (except LS7 and LS9) engine swap applications where durability, quiet operation, emissions compliance and leak-free sealing is desired. 2 bolt exit flange configuration matches 2010 Camaro (also the same as the E-rod exhaust manifolds) which can be used with OE gaskets and fasteners if desired, for an OE quality seal.
Hooker is here with excellent products that are available at a competitive price. The company does its utmost to provide the best possible solutions for your needs. All products by Hooker are made with expert care and created by professionals to meet all your requirements. Hooker does not accept compromises when it is going about quality, so you can be sure that all products have only first-rate quality. With many years of manufacturing experience, Hooker is the name you can trust.
Although designed as a stock replacement, this product does not have a C.A.R.B. Executive Order Exemption and therefore may or may not be legal for any particular pollution controlled application. Check with your state or local governmental authority regarding approval for your application
Hooker Headers®, a leading header manufacturer, provides a line of Super Competition & Competition headers, mufflers, and cat-back exhaust systems. The company, which now is one of Holley Performance Products brands, was established by Garry Hooker in 1962. It is widely known for its racing heritage. Hooker Headers helped more racers reach the Winner's Circle than any other header company. In the 1990s the company developed the Aerochamber muffler, which still is the most advanced muffler on the market.
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Hooker® 8501-4HKR - Hi-Silicon-Moly Ductile Iron Cast Iron Titanium Ceramic Coated Exhaust Manifold
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