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Hooker Blackheart

Hooker Blackheart 12644HKR Transmission Crossmember

Part # 12644HKR Be the first to write a review

Compatible with 1978-88 GM A/G-Body LS swap 4L60//4L65/4L70/4L80/TH400/2004R/T56/T56 Magnum Transmission Crossmember

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Hooker Blackheart 12644HKR Transmission Crossmember

Not Available

1978-88 GM A/G-Body LS swap 4L60//4L65/4L70/4L80/TH400/2004R/T56/T56
Magnum Transmission Crossmember

Features:

  • Facilitates installation of a 4L60/4L65/4L70/4L80/TH400/2004R/T56/T56 behind an LS engine in 78-88 GM A/G Body 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 optimized engine/transmission inclination angle that is critical to obtaining suitable U-joint working angles, when installed with Hooker 12643HKR engine mounts
  • Designed in conjunction with other Hooker BlackHeart GM A/G-Body 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
UPC090127712955
Manufacturer Part Number12644HKR
Part Number12644HKR
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# 12644HKR
G-body LS Swap Tech Data
A/G-Body 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. 4L60/4L65/4L70 applications require add on bracket P/N 12655HKR. 4L80 applications require add-on bracket P/N 12656HKR. For applications that were NOT originally equipped with a 200-4R transmission, crossmember adapter P/N 12647HKR is required. Crossmember fitment has not been validated for El Camino applications.<br><br>*NOT COMPATIBLE WITH TREMEC TR6060 TRANSMISSIONS.
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