Hooker BlackHeart Engine Mount Brackets

1968-1972 A-Body LS Swap Engine Mounting Bracket Kit- Stock Position

Part # 71221007HKR Be the first to write a review
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Vehicle emissions regulations are not applicable to this item.

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These Hooker BlackHeart engine swap mounting brackets facilitate the installation of an GM LS motor into a 1968-72 A-Body as part of your LS swap project. This mounting bracket kit is part of the most comprehensively engineered system of mounting components, headers and exhaust systems available for this application. The entire Hooker BlackHeart swap system is designed to decrease your total swap installation effort and cost, while increasing the engineered quality of your vehicle and compatibility of these components with other popular aftermarket components. LS Oil Pan 302-2 can be used with these mounts ** Please read the provided instructions thoroughly before attempting installation.


  • Locates engine to stock SBC engine/transmission mating plane - See instructions for additional information
  • Plate steel construction-provides a durable cost-effective LS engine mounting solution
  • Provides optimized U-joint angles for vehicles with stock to moderately lowered suspension ride heights
  • Allows installation of a GM TH350, TH400 or TH2004R transmission using a factory 1968-72 Chevelle transmission crossmember, without having to cut the vehicle floor open
  • 4L60-4L70, 4th-gen F-body T56/T56 Magnum or 4L80/4L85 transmission installations require extensive floor cutting; T56/T56 Magnum and 4L80/4L85 installations require the use of a Hooker 71222007HKR transmission crossmember
  • Broad accessory drive compatibility- allows the use Holley or stock Corvette, truck, F-body or GTO accessory drive systems (some stock FEAD component exclusions apply)
  • Provides best-available clearance for installation of low-mount A/C compressor
  • Holley 302-2 oil pan compatible- provides for easy bolt-in installation process and clearance for steering tie rod ends
  • Dual rubber/poly mount compatibility- allows use of 4th-gen F-body factory rubber mounts, or aftermarket poly replacement inserts
  • Clear Zinc plated finish- provides attractive corrosion-resistant appearance

About Hooker BlackHeart

The BlackHeart team utilizes the latest technology and materials to design exhaust systems, engine swap kits, and mufflers for both import and domestic cars and trucks. Hooker BlackHeart is platform-engineered to provide superb performance, aesthetics, and fitment.

Application1968-72 GM A-Body
Bracket FinishZinc Plated
Bracket MaterialSteel
Brand Hooker BlackHeart
Emission Code6
EngineGM Small Block Gen III/IV/V (LS/LT Based)
Motor TypeGM LS
Product TypeEngine Mounts
T56 GM
T56 Magnum GM
Type of ComponentEngine Mount Bracket
Part Number71221007HKR

Vehicle emissions regulations are not applicable to this item.
Compatible with the following accessory drive systems: Holley or stock F-body/GTO (GTO alternator not compatible, must be relocated or replaced with an F-body alternator) Corvette (excluding the A/C compressor/bracket, which must be relocated) Truck (must use smaller 5" diameter power steering pump pulley and stock Denso A/C compressor without rear pressure sensor) These engine brackets ARE NOT compatible for use with the stock vehicle A/C evaporator case. Use factory Chevelle crossmember to install all transmissions other than 4th-gen F-body T56/T56 Magnum and 4L80/4L85

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    *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.