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.
Specifications:
| Description_ASC |
NOTE: Not compatible with 2004-2006 GTO starters/bellhousings.
Breaking in an engine with ceramic-coated versions of these manifolds will most likely result in damage to the coating and VOID all warranties providing coverage to it. HOOKER (TM) recommends using bare cast-iron manifolds or an old set of headers to break-in engines to avoid coating damage.
Ceramic-coated manifolds require several heat cycles to fully cure before they will withstand extreme heat, so care should be taken to provide a series of 4 to 5 intermittent heat cycles to "set" the coating prior to putting the vehicle into service. An incremental increase in run duration and throttle angle should be added to each successive cycle; initial and final run durations between approximately 1 and 7 minutes will be sufficient to set the coating. |
| Description_DES |
Hooker BlackHeart LS Swap Exhaust Manifolds - Rear Dump - Silver |
| Description_KEY |
rear dump manifold; ls rear dump; ls rear dump exhaust manifold;LS swap manifolds; LS exhaust manifolds; LS swap exhaust; exhaust manifolds; cast exhaust manifolds; C10 LS swap exhaust manifolds; 240SX LS swap exhaust manifolds; F-Body LS swap exhaust manifolds; G-Body LS swap exhaust manifolds |
| Description_FAB |
2.5-inch outlet diameter offers improved flow for maximum performance from a cast iron exhaust manifold |
| Description_FAB |
Tight tuck design that provides an exit between our standard swap manifolds and center dump manifolds (see pictures for diagram and specs) |
| Description_FAB |
Intended for GM LS engine swap applications where durability, quiet operation, and leak-free sealing is desired |
| Description_FAB |
Available in Natural as-cast finish for a factory appearance, silver ceramic, or black ceramic |
| Description_FAB |
Cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance |
| Description_FAB |
Perfect complement to Hooker engine swap mount plates and Holley engine swap oil pans |
| Description_FAB |
Hardware included: Nickel plated steel mating flanges, MLS mating flange gaskets, and mating flange hardware |
| Description_FAB |
Similar to SBC driver side manifold (HKR8525) - same exit centerline but raised up 1.36-inches |
| Description_EXT |
Multi-Fit - GM Gen III/IV LS Engines - 2.50-in. Outlet |
| Description_MKT |
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. |
| Exhaust Series |
Hooker |
| Header Style |
Manifold |
| Application |
Multi-fit |
| Flange Style |
2-Bolt |
| Material |
Cast Iron |
| Subframe |
Stock |
| Bolt size |
M8 x 1.25 x 25mm |
| Brand |
Hooker BlackHeart |
| Choose Your Part |
Manifold |
| Clearance Category |
Exhaust |
| Collector Diameter |
2.50 inch |
| Discount Percentage |
5-25% |
| Emission Code |
8 |
| Engine |
GM Gen III/IV (LS) |
| Exhaust Manifold Style |
Rear Dump |
| Finish |
Silver Ceramic |
| Header Finish |
Natural |
| Primary Tube Dia. |
1-3/4 inch |
| Product Type |
Manifold |
| Tube Material |
Cast Iron |
| Type of Component |
Manifold |
