1978-1988 Monte Carlo Hooker Blackheart Transmission Crossmember, Swap, T56-4L60-4L85E-TH400-200R4 12644HKR

Hooker Blackheart 1978-88 GM A/Monte Carlo 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 Magnum behind an LS engine in 1978-88 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
• Designed using CAD modeling/FEA analysis for optimal fitment, strength, weight, safety and appearance
• 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/Monte Carlo 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 inch exhaust system routing

Manufacturer Part Number : 12644HKR

Part Notes:

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. Not Compatible with Tremec TR6060 Transmissions.