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Hooker BlackHeart Long Tube Headers - Stainless

1970-1974 GM LS 2nd Gen (Camaro/Firebird), Tube Size 1-7/8, Collector Size 3 inch, Port Shape - round (Replaces part # 2298-7HKR)

PART# 70101312-RHKR

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Estimated shipping date: 04/23/2021
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1970-74 GM LS 2nd Gen (Camaro/Firebird) Full Length Engine Swap Headers for hot LS1/LS6/LS2 (cam,heads,nitrous), stock 6.2L(L92)Vortec truck, stock LS3 or all supercharged LS/Vortec engine swaps requiring maximum ground clearance. Not legal for use on pollution controlled motor vehicles.


  • 1-7/8” primaries/3" collectors
  • Proprietary flat-finished/TIG welded stainless steel investment cast port flanges, CAD/CFD designed one-piece merge collectors and investment cast attenuation spears
  • Compatible with Quick Time™ bellhousings, mechanical clutch linkage (requires custom Z-bar/pivot ball assembly), stock A/C evaporator case on firewall, straight boot spark plug wires and Holley LS swap oil pan and accessory drive brackets
  • Bolt-in installation with Hooker 3” 2nd-gen F-body exhaust system
  • Connection to 2-1/2” Hooker 2nd-gen F-body exhaust system requires the use of an available mid-pipe kit
  • Compatible only with stock height subframe/body mounts
  • installation with half-height mounts will likely require modification to vehicle floor panels
  • Designed and intended for installation only with Hooker LS swap engine mounting brackets and transmission crossmembers for this application. Will not install with any other brand of mounts
  • Will not install with factory column shift linkage, Lokar or similar aftermarket cable or linkage required for column shift applications
  • the only 70-74’ specific header design in the marketplace
  • Premium fitment with maximized ground clearance
  • 100% Stainless steel construction


Application1970-1974 Camaro/Firebird
BrandHooker BlackHeart
Collector Diameter3.00 inch
Emission Code4
EngineGM Small Block Gen III/IV (LS Based)
Exhaust SeriesHooker BlackHeart
Header StyleLong Tube
Primary Tube Dia.1-7/8 inch
Product TypeHeaders
Part Number70101312-RHKR



This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • 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

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

Tech Resources

The use of header wraps can cause header tubes to crack or rust due to excessive heat and moisture build-up. Hooker does not recommend the use of header wraps as this will void the warranty.


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