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Hooker

LS Swap Exhaust Manifolds Black Ceramic Finish Multi-Fit 2.25 In. Outlet Gen III, Gen Iv Chevrolet LS Engine Hooker BlackHeart

$674.95 $623.95 Save $51.00

SKU: H00I 8501-3HKR

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INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

It features a black ceramic finish and a 2.25-inch outlet diameter for improved flow. These manifolds hug close to the engine block for a tight tuck design, aiming to provide a universal fit for popular chassis and maintain ground clearance.
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Part #: 8501-3HKR

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 desiredBlack ceramic coating for reduced engine compartment temps and improved corrosion resistanceNickel plated 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 manifold2 bolt exit flange configuration matches the E-rod exhaust manifolds for a factory like fitment. This allows the use of factory gaskets and fasteners if desiredCast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistanceTight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearancePerfect complement to Hooker engine swap mount plates and Holley engine swap oil pansDetails:Bolt size: M8 x 1.25 x 25mmCARB (California) Compliant: NoCollector Diameter: 2.25 inchEmission Code: 8Engine: GM Gen III/IV (LS)Exhaust Manifold Style: Standard SwapExhaust Series: HookerFinish: Black CeramicFlange Style: 2-BoltHeader Finish: Black CeramicHeader Style: ManifoldMaterial: Cast IronPrimary Tube Dia.: 1-3/4 inchProduct Type: ManifoldSubframe: StockTube Material: Cast IronType of Component: ManifoldWarning: California Proposition 65

Features:

  • Intended for GM LS engine swap applications where durability, quiet operation, and leak-free sealing is desired
  • Tight Tuck Design Provides Universal Fit
  • Black ceramic coating for reduced engine compartment temps and improved corrosion resistance
  • Free-Flowing For Good Performance
  • Nickel plated steel mating flanges included (mating flange fasteners are not included)
  • Catalytic Converter Efficiency
  • 2.25 inch outlet diameter offers improved flow for maximum performance from a cast iron exhaust manifold
  • Hi-Silicon-Moly Ductile For Durability
  • 2 bolt exit flange configuration matches the E-rod exhaust manifolds for a factory like fitment. This allows the use of factory gaskets and fasteners if desired
  • Corrosion Resistant
  • Cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance
  • 2 Bolt Exit Flange Configuration
  • Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance
  • Perfect Complement To Engine Swap Mount Plates
  • Perfect complement to Hooker engine swap mount plates and Holley engine swap oil pans
  • Perfect Complement To Holley Engine Swap Oil Pans

Hooker Exhaust Manifolds | 1.625 in. Tubing | 2.25 in. Collector | Hi-Silicon-Moly Ductile Iron | Black Ceramic

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Vehicle Symptoms
  • Ticking noise from engine bay on cold start
  • Loss of power during acceleration
  • Exhaust smell inside cabin
  • Check engine light with misfire codes
  • Rattling sound from exhaust manifold
Diagnostic Codes
  • P0420 – Cat Sys Efficiency Below Threshold (B1)
  • P0430 – Cat Sys Efficiency Below Threshold (B2)
  • P0300 – Random or multiple cylinder misfire Det
  • P0301 – Cylinder 1 misfire Det
  • P0302 – Cylinder 2 misfire Det
Relevant Conversations
  • LS swap exhaust manifold ticking noise
  • Hooker BlackHeart 8501-3HKR review
  • P0420 after LS swap exhaust manifold
  • Best cast iron exhaust manifolds for LS swap
  • Exhaust leak sound from engine bay LS
  • Can a cracked manifold cause P0300?
  • Hooker vs stock LS manifold performance
  • BlackHeart manifold install time LS swap
  • Exhaust manifold gasket replacement LS
  • P0430 with new headers manifold

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandHooker
Part NumberH00I 8501-3HKR

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