Hooker BlackHeart Transmission Crossmember - Black - GM LS-Series - 4L60E/4L65/4L70/4L80/TH400/T56/T56 Magnum - GM A-Body/G-Body 1978-88 DX2105K with headers and 2000+ stall

with headers and 2000+ stall

opening the exhaust path improving flow dynamics

high viscosity index shock absorber oils

Cylinder Head Specifications

Edelbrock Performer / Thunder AVS 500-650 CFM Carburetor

Hooker BlackHeart Transmission Crossmember - Black - GM LS-Series - 4L60E/4L65/4L70/4L80/TH400/T56/T56 Magnum - GM A-Body/G-Body 1978-88 DX2105K with headers and 2000+ stallThis part is fully interchangeable with part number 12644HKR. 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 transmissions require add on bracket P N 12655HKR. 4L80 transmission require add on bracket P N 12656HKR For applications that were NOT originally equipped with a 200 4R