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Product Summary

Universal Fit, Cast Iron, Ceramic Coated, Black

  • Designed to hug close to the engine block so they fit into a wide variety of replacement and engine-swap application
  • Contoured design aims the exhaust directly at the exit port for improved flow
  • A cast iron construction means they will provide years of leak-free performance with less under hood noise than traditional headers
  • A shorty design means you can route exhaust tubing close to your frame/floor pan for maximum ground clearance
  • Intended for all GM LS (except LS7 and LS9) engine swap applications

Key Specs

MFG. Part #8501-3HKR
BrandHooker Headers

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Details

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.

Features:

  • 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

Charts

CARB Warning

Follow EPA, CARB, and state regulations for engine changes

Emissions warning: this part is for vehicle engine changes, not direct oem engine replacements. In California, engine changes are legal when done in compliance with California bureau of automotive repairs (bar) engine change policy. For assistance, call bar referee at: (800) 622-7733. And see https://bar.Ca.Gov/consumer/smog_check_program/engine_changes. All customers must comply with federal epa mobile source enforcement memorandum no. 1a (and addendum) and all applicable state regulations when conducting engine changes. Improper installation and/or use of this part in California may subject the installer and/or owner to a $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and laws of all states for use of this engine change part on makes or models of vehicles that render them noncompliant with applicable state and/or federal emission laws with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine

Specifications

KEY SPECS
MFG. Part #8501-3HKR
BrandHooker Headers
GENERAL
Material TypeCast Iron
FinishCeramic Coated
ColorBlack
Collector Diameter2-1/4 Inch
Tube O.D.1.625"
Emission Code3
GTIN Code090127681268