Hooker 1 5/8 inch Cast Iron Exhaust Manifolds Bare GM LS 8501HKR

HOOKER EXHAUST MANIFOLDS

GM LS (except LS7 & LS9) Exhaust Manifolds - Natural Cast Finish

Not compatible with 2004-2006 GTO starters/bellhousings. 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. Have been validated thus far for fitment on 1970-81 GM F-bodies, 82-88 GM G-bodies and 68-72 GM A-bodies.

Features:

• Intended for all GM LS (except LS7 and LS9) engine swap applications where durability, quiet operation, emissions compliance and leak-free sealing is desired
• Available in plain as-cast finish or with various Hooker ceramic coatings 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
• 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
• Cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance
• Free-flowing for good performance and catalytic converter efficiency
• 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 complement to Hooker engine swap mount plates and Holley engine swap oil pans