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Hooker Blackheart

Hooker Blackheart 12646HKR Transmission Crossmember

Compatible with 1973-1987 GM C-2010/15 2WD, 1979-1987 C20 2WD & 1973-1982 Blazer/Jimmy 2WD LS swap 4L60/4L80/TH350/TH400/2004R/ T56/T56 Magnum Transmission Crossmember

Part # 12646HKR Be the first to write a review

Hooker Blackheart 12646HKR Transmission Crossmember

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Emissions

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.

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1973-1987 GM C-2010/15 2WD , 1979-1987 C20 2WD & 1973-1982 Blazer/Jimmy 2WD LS swap 4L60/4L80/TH350/TH400/2004R/ T56/T56 Magnum Transmission Crossmember. 12645HKR adapter bracket is also required for installation of a TH350, 700R4, T56 or T56 Magnum transmission

Features:

  • Facilitates installation of a 4L60/4L80/TH350/TH400/2004R/T56/T56 behind an LS engine in 1973-87 GM C-10/20 2WD applications (may require add-on bracket, see installation notes)
  • Designed using CAD modeling/FEA analysis for optimal fitment, strength, weight, safety and appearance
  • Welded steel construction
  • Provides an optimum engine/transmission inclination angle that is critical to obtaining suitable U-joint working angles, when installed with Hooker 12621HKR engine mounts
  • Designed in conjunction with other Hooker GM C-10/20 engine swap brackets to provide bolt-in installation of Hooker LS swap manifolds, headers and exhaust systems for this application
  • Provides the highest clearance available for up to 3" exhaust system routing
Brand Hooker Blackheart
Emission Code5
Product TypeTransmission Crossmembers
UPC090127716465
Manufacturer Part Number12646HKR
Part Number12646HKR
5

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.
Instructions for Part# 12646HKR
GM C10/20 LS Swap Selection Guide
Integral component of the complete Hooker BlackHeart swap system for this application. Component features unique geometry that is not compatible for use with any other brand of engine mounting components. 12645HKR adapter bracket is also required for installation of a TH350, 700R4, T56 or T56 Magnum transmission.<br><br>*NOT COMPATIBLE WITH TREMEC TR6060 TRANSMISSIONS.
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