SKU: 54580742226

Hooker BlackHeart LS Swap Exhaust Manifolds-Rear Dump-Black - 8505-3HKR

Sale price$263.23 Regular price$292.48
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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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Description

Hooker BlackHeart LS Swap Exhaust Manifolds-Rear Dump-Black - 8505-3HKRFor applications or projects where our standard LS swap manifolds (8501HKR, 8502HKR, 8503HKR series) don't quite fit and our "center dump" manifold (8504HKR) exits too far forward, our new "rear dump" cast iron swap manifolds have arrived. These differ in that they exit in a straight down fashion much like a block hugger header but exit more toward the rear of the engine than our "center dump" manifolds. Cast out of the same Hi Silicon Moly Ductile

For applications or projects where our standard LS swap manifolds (8501HKR, 8502HKR, 8503HKR series) don't quite fit and our "center dump" manifold (8504HKR) exits too far forward, our new "rear dump" cast iron swap manifolds have arrived. These differ in that they exit in a straight-down fashion much like a block hugger header but exit more toward the rear of the engine than our "center dump" manifolds. Cast out of the same Hi-Silicon-Moly Ductile Iron as most of our other lines, it will be tough to find a more durable, streamlined, and quiet exhaust option. Available in natural cast, silver ceramic, or black ceramic finishes, these manifolds are offered with flanges, gaskets, and flange hardware for connecting to our lineup of adapter pipe kits. This not only allows for the easy addition of catalytic converters but also makes it simple to connect to our many exhaust system options.


Features:

  • 2.5-inch outlet diameter offers improved flow for maximum performance from a cast iron exhaust manifold
  • Tight tuck design that provides an exit between our standard swap manifolds and center dump manifolds (see pictures for diagram and specs)
  • Intended for GM LS engine swap applications where durability, quiet operation, and leak-free sealing is desired
  • Available in Natural as-cast finish for a factory appearance, silver ceramic, or black ceramic
  • Cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance
  • Perfect complement to Hooker engine swap mount plates and Holley engine swap oil pans
  • Hardware included: Nickel plated steel mating flanges, MLS mating flange gaskets, and mating flange hardware
  • Similar to SBC driver side manifold (HKR8525) - same exit centerline but raised up 1.36-inches

Specs:

Application Multi-fit
Bolt Size M8 x 1.25 x 25mm
Brand Hooker BlackHeart
Choose Your Part Manifold
Collector Diameter 2.50 inch
Emission Code 8
Engine GM Gen III/IV (LS)
Exhaust Manifold Style Rear Dump
Exhaust Series Hooker
Finish Black Ceramic
Flange Style 2-Bolt
Header Finish Black Ceramic
Header Style Manifold
Material Cast Iron
Primary Tube Dia. 1-3/4 inch
Product Type Manifold
Subframe Stock
Tube Material Cast Iron
Type of Component Manifold
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 54580742226

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Patrick TTillery
Dallas, US
★★★★★ 1
Bad solenoid
Size: 89-96158T 2PCS
One of the cylinders works, and the other cylinder was a bad one. It did not work.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 12, 2025
J
Verified Purchase
Jim M
Houston, US
★★★★★ 4
Metric Hardware
Size: 89-96158T 1PC
Works fine. This has metric hardware, which does not match the other two relays on my vintage mercury outboard. This is not a quicksilver part
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Reviewed in the United States on August 6, 2025
J
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Jimmy Snow
Lexington, US
★★★★★ 5
Boat repair
Size: 89-96158T 2PCS
Excellent for price and quality
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Reviewed in the United States on November 1, 2025
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Curtis M
Belleville, US
★★★★★ 5
Fixed the no boat start
Size: 89-96158T 1PC
Fixed my problem so far working good
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Reviewed in the United States on August 15, 2025
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Verified Purchase
CHARLES H.
Carnegie, US
★★★★★ 5
Direct Connection
Color: Black, Size: 25-Feet
Received the package in good condition. This wire is a decent quality. I made a set of jumper cables with it and they work excellent.
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Reviewed in the United States on May 24, 2026

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