71223026hkr_011980 Screen Shot 2019-11-18 at 12.16.42 PM 71223026hkr_021980 71223026hkr_031980 71223026hkr_051980


These Hooker BlackHeart cast iron exhaust manifolds have a 2.50 inch outlet, natural cast 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.


  • 2.5 inch outlet diameter offers improved flow for maximum performance from a cast iron exhaust manifold
  • Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance
  • Intended for GM LS engine swap applications where durability, quiet operation, and leak-free sealing is desired
  • Plain as-cast finish for a factory appearance
  • Nickel plated steel mating flanges, MLS mating flange gaskets, and mating flange hardware included
  • Cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance

Additional information

Weight 32 lbs
Dimensions 21 × 9 × 12 in

Product instructions

Instructions for Part# 71223026HKR

Select Your Options

$283.00 $253.95

Out of stock

SKU: 71223026HKR

WARNING: Cancer and Reproductive Harm.