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Hooker BlackHeart Adapter Pipe

1968-72 A-Body Long-Tube Header LS Swap Adapter Kit to 2.5" Exhaust

PART# 70701314-RHKR

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At the heart of any performance vehicle is the exhaust system. Hooker with its classic heart logo has been at the core of the exhaust industry for decades. Many of the most powerful vehicles on the planet have used Hooker Headers. Hooker continues to push the boundaries of performance with the new Blackheart line of LS swap system components for popular muscle car and classic truck applications. Hooker Blackheart LS swap systems are comprised of application-specific components that are comprehensively designed to provide optimized levels of vehicle performance, ground clearance and installation ease, which are not capable of being duplicated with the use of universal-type mounting/exhaust components.


  • Mandrel bent 304SS construction provides enhanced performance and appearance characteristics
  • Connects Hooker 1968-72 A-body mid-length LS swap headers or Hooker LS cast iron manifolds to Hooker 2.5” or 3” A-body exhaust systems
  • O2 bungs included in each adapter tube are indexed for reliable wide-band sensor operation
  • Compatible with all GM automatic transmissions
  • Compatible with 4th-gen F-body T56 and T56 Magnum transmissions
  • Includes OE quality clamps; requires no cutting or welding to install


BrandHooker BlackHeart
Emission Code5
Exhaust SeriesHooker BlackHeart
Product TypeAdapter Kit
Tube Diameter2.5"
Part Number70701314-RHKR



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Tech Resources

Hooker has created a full line of adapter tubes that fill the gap in your exhaust system. Kit includes all hardware and gaskets for a clean and simple connection.


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