TRANSMISSION CROSSMEMBER,73-87 C-10,LS SWAP

Brand New Hooker Blackheart Transmission Crossmember, Black Finish, Compatible with GM Small Block Gen III/IV LS Based Engines (Holley Part #12646HKR).

1973-1987 GM C-10/15 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.

NOTE: Compatible with these types of transmissions: 200R4, 4L60E, 4L65E, 4L70E, 4L75E, 4L80E, 4L85E, 700R4, Powerglide, T56 GM, T56 Magnum GM, TH350 & TH400

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

Specs:

• Brand: Hooker BlackHeart
• Engine: GM Small Block Gen III/IV (LS Based)
• Finish: Black Powder Coated
• Material: Steel
• Product Type: Crossmember

You can view and download the complete assembly instruction booklet here.