Hooker® - BlackHeart™ Transmission Crossmember Hooker® - BlackHeart™ Transmission Crossmember Hooker® - BlackHeart™ Transmission Crossmember Hooker® - BlackHeart™ Transmission Crossmember Hooker® - BlackHeart™ Transmission Crossmember Hooker® - BlackHeart™ Transmission Crossmember Hooker® - BlackHeart™ Transmission Crossmember Hooker® - BlackHeart™ Transmission Crossmember Hooker® - BlackHeart™ Transmission Crossmember

Hooker® 12644HKR-1 - BlackHeart™ Transmission Crossmember

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Notes:

Revised Design - Interchangeable with 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 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
TH350 Transmissions can reuse the factory transmission crossmember, but the slots in the center of the crossmember will need to be elongated in the forward direction

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Vehicle Fitment

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Specifications

Brand	Hooker®
Series	BlackHeart™
Finish	Black Powdercoated
Material	Steel
Emission Code	5
Engine	GM Gen III/IV (LS)
Motor Type	GM LS
Transmission	200R4, 4L60E, 4L65E, 4L70E, 4L75E, 4L80E, 4L85E, T56 GM, T56 Magnum GM, TH400
Transmission Type	4L60/4L65/4L70/4L80/TH400/2004R/T56/T56 Magnum
Type of Component	Crossmember

Features

This LS and LT Swap Crossmember for the GM G-Body has some very minor design updates & has been updated 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

Product Details

BlackHeart™ Transmission Crossmember by Hooker®. Finish: Black Powdercoated. Material: Steel. Hooker Blackheart has quickly become the leader in engine swap system design and. This Hooker Blackheart engine swap transmission crossmember is designed to be used with Hooker Blackheart engine mount adapter plates or mounting brackets designed for vehicles that are equipped with stock or specific aftermarket engine K-members.

Installation

Hooker® - BlackHeart™ Transmission Crossmember Installation Instructions

Hooker is here with excellent products that are available at a competitive price. The company does its utmost to provide the best possible solutions for your needs. All products by Hooker are made with expert care and created by professionals to meet all your requirements. Hooker does not accept compromises when it is going about quality, so you can be sure that all products have only first-rate quality. With many years of manufacturing experience, Hooker is the name you can trust.

Hooker® - BlackHeart™ Transmission Crossmember Installation Instructions Hooker® - Warranty Hooker® - FAQ Hooker Authorized Dealer

Brand:

Hooker

Part Number:

12644HKR-1

UPC:

090127117194

Alternate MPN:

12644HKR1

Warranty

All Hooker Products Limited Warranties are extended to the original consumer only. This Limited Warranty is not assignable or otherwise transferable. There are no warranties that extend beyond those stated herein. Hooker Products offers no other warranties expressed or implied beyond this Limited Warranty.

In the event of an alleged defect in material or workmanship, Hooker Products’ responsibility is strictly limited to repair or replace the defective product. Hooker has no other obligation expressed or implied. Final warranty determination will be in the sole discretion of Hooker Products. Holley shall not be responsible for; (a) actual or alleged labor, transportation, or other incidental charges; or (b) actual or alleged consequential or other damages incurred by use of any product of Hooker Products.

This Limited Warranty sets forth specific legal rights. The consumer may have other rights as a result of variations in state laws or provincial laws. This Limited Warranty supersedes all prior warranty statements.

Holley Performance Products warrants its new Holley, Flowtech, Hooker, NOS, and Weiand products to be free from defects in material and workmanship for a period of 90 days from the date of purchase.

Holley Performance Products Limited Warranty specifically does not apply to products, which have been (a) modified or altered in any way; (b) subjected to adverse conditions, such as misuse, neglect, accident, improper installation or adjustment, dirt or other contaminants, water, corrosion, or faulty repair; or (c) used in other than those applications recommended by Holley Performance Products. Holley Performance Products also does not warrant, and disclaims all liability for products used in racing activities and/or applications other than those specifically recommended in the current brand catalog.

Holley limits the warranty on Metallic Ceramic Coatings to be free from defects in material and workmanship for a period of 90 days from the date of purchase. This limited coating warranty does not apply to any products which have been subjected to adverse conditions, such as high heat encountered during engine break-in or if used during any racing activity.

Magnuson-Moss Warranty Act:

Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More

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