Hooker 12644HKR-1 Blackheart LS Trans Crossmember, 1978-88 G-Body

Hooker 12644HKR-1 Blackheart LS Trans Crossmember, 1978-88 G-Body

Sku # 42512644HKR1

Mfr. Part # 12644HKR-1

1978-1988 GM A/G-Body LS swap 4L60//4L65/4L70/4L80/TH400/2004R/T56/T56 Magnum Transmission Crossmember.

This crossmember is one part of the Hooker BlackHeart LS swap system for the 1978-1988 GM A/G-Body for an easy bolt-in engine swap. The modular design of this crossmember supports the following transmissions: 4L60//4L65/4L70/4L80/TH400/2004R/T56/T56 Magnum Transmissions (some transmissions require an optional transmission adapter – sold separately). This is a revised design and is fully interchangeable with part number 12644HKR.

• The LS Swap Crossmember for the GM G-Body has some very minor design updates And has been superseded from 12644HKR to part number 12644HKR-1
• 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″ dual exhaust system routing

Transmission Mount Included

No

Crossmember to Frame Bushing Included

No

Notes

Designed for use with Hooker LS engine swap brackets.