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Hooker BlackHeart LS SWAP Cat-Back Exhaust System - C10 - 304SS - 3-Inch

Fits 1973-1974 GM C-10/15 2WD Short Bed Truck - Rear Exit - Aggressive to Moderate Sound

Part # 70501317-RHKR Be the first to write a review

Hooker BlackHeart LS SWAP Cat-Back Exhaust System - C10 - 304SS - 3-Inch

Not Available

8

Emissions

This product is engineered to facilitate the installation of a later model, emissions friendly engine into a vintage / classic vehicle.

See Emissions Details
Full stainless steel exhaust system for 1973-1974 GM C10/15 2 wd short bed pickup with LS engine comes complete with stamped crossover for a broad torque curve, TIG welded stainless steel straight through designed absorption style mufflers, for applications up to 450HP; side exits behind rear tires.

Features:

  • Each system is supplied with a high-efficiency stamped crossover & high-flow TIG-welded 304 SS absorption mufflers
  • OE quality hardware (clamps, hanger rods and rubber isolators) provided to ensure excellent fitment and a leak free installation
  • Kits are supplied with rear exits
  • 304 Stainless steel straight through designed absorption mufflers for a muscle car sound without the resonance
  • Constructed of mandrel bent 304 stainless steel tubing

About Hooker BlackHeart

Shop the official site of Hooker BlackHeart and explore exhaust systems, engine swap kits, and mufflers for both import and domestic vehicles at Holley.com!

Application1973-1974 GM C10/15 2WD pickup
Brand Hooker BlackHeart
Choose Your PartExhaust System
Emission Code8
EngineGM Gen III/IV/IV (LS/LT)
Exhaust SeriesHooker BlackHeart
Exit PositionDual Out Rear
Inlet Diameter (in)3
Material304 Stainless Steel
Muffler Quantity2
Outlet Diameter (in)3
Product TypeExhaust System
Single DualDual
Sound LevelAggressive / Moderate
System TypeHeader-back
Swap
Truck Bed LengthShort Bed
Tube Diameter3 inch
Tubing Diameter (in)3
UPC090127722404
Part Number70501317-RHKR
8

This product is engineered to facilitate the installation of a later model, emissions friendly engine into a vintage / classic vehicle. Federal guidelines indicate that an engine swap is allowable if one or more of the following conditions apply:

  • If there is a reasonable basis for knowing that emissions are not adversely affected as described in the EPA Tampering Policy dated November 23rd, 2020
  • The resulting vehicle is identical (with regard to all emissions related parts, engine design parameters and engine calibrations) to a certified configuration of the same or newer model year as the vehicle chassis
  • The vehicle is a uncontrolled vehicle - Vehicles that were manufactured before emission control regulations took effect are called uncontrolled vehicles. Aftermarket parts regulations and anti-tampering laws do not apply to these vehicles
  • An EO legal engine swap kit is utilized (such as a GM EROD)
  • The vehicle is being used for Competition Use Only - Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street

Consumers are responsible for complying with laws prohibiting tampering, and for ensuring that modified vehicles are operated in a manner that complies with applicable laws.

Motor vehicle emissions standards are intended to help achieve and maintain air quality goals that benefit human health and the environment. The U.S. Environmental Protection Agency, the California Air Resources Board, Environment Canada, and other regulatory agencies prohibit the operation of vehicles on public roads that violate applicable emissions standards. The alteration of certified production vehicles to modify, remove, or render inoperable emissions control hardware or software, known as "tampering" is prohibited by the U.S. Clean Air Act and other laws. Tampering with motor vehicles emissions control systems is punishable by substantial monetary penalties.

Holley is committed to performance parts that allow enthusiasts to modify their vehicles and meet emission requirements. The information provided here is intended to provide general guidance of interest to most consumers. This guidance may not apply to all vehicles or all situations. It is up to each consumer to evaluate his or her own situation and take the steps necessary to comply with applicable laws. The websites listed below have more information about regulations and policies pertaining to motor vehicle emissions. You should also check the regulations applicable to your local area.

EPA Website
https://www.epa.gov/enforcement/epa-tampering-policy-epa-enforcement-policy-vehicle-and-engine-tampering-and-aftermarket

CARB Website
https://ww3.arb.ca.gov/msprog/aftermkt/aftermkt.htm

Fits short bed trucks with standard-duty rear leaf springs only (52" length), cannot be installed on trucks equipped with factory heavy-duty rear leaf spring option (56" length). Connects directly to <a href="https://www.holley.com/70101503HKR">70101503HKR</a> and <a href="https://www.holley.com/70101504HKR">70101504HKR</a> full-length headers.
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    Some parts are not legal for use in California or other states with similar regulations.