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Hooker BlackHeart LS Swap Kit

LS Swap Engine and Transmission Mounting Kit for 1984-1992 GM F-Body with T56/T56 Magnum/4L60-4L70*/4L80-4L85*/TH400*/2004R* Transmission Crossmember

Part # VK090174 Be the first to write a review
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Complete Engine and Transmission Mounting kit for 1983-1992 Chevrolet Camaro / Pontiac Firebird. Direct fit of GM LS Engine with T56 or T56 Magnum Transmission. Installation of a 4L60-4L70*, 4L80/4L85*, TH400 or 2004R* automatic transmission can also be accomplished using the crossmember w/ additional adapter brackets 12650HKR, 71223003HKR, or 71223004HKR. Recommended Oil Pan: LS Oil Pan 302-2.


  • Designed for use in LS Swap applications
  • Plate steel construction - provides a durable transmission mounting solution
  • CAD designed- provides optimized strength, stiffness and weight
  • Built-in divorced, adjustable torque arm bracket- solves installation issues with using transmissions not factory installed in 4th-gen F-body vehicles
  • Dual-arch exhaust passages - provides highest exhaust ground clearance available
  • Semi-gloss black powder coat finish- provides attractive corrosion-resistant appearance
  • Transmission installations other than 4th-gen F-body T56/T56 Magnum require the use of the following adapter kit: 4L60-4L70 transmissions - 71223003HKR, 4L80/4L85 transmissions - 71223004HKR, TH400/2004R transmissions - 12650HKR
  • LS Oil Pan 302-2 can be used with this mount kit
Application1982-1992 Camaro / Firebird
GM LS Engines
Brand Holley Kits
Emission Code5
Exhaust SeriesHooker BlackHeart
FinishBlack Powdercoated
Motor TypeGM LS
Product TypeEngine & Transmission Mount Kit
T56 GM
T56 Magnum GM
Transmission TypeT56/T56 Magnum
Type of ComponentEngine & Transmission Mount Kit
Part NumberVK090174

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

*Installation requires the use of a separately available Hooker transmission adapter kit. Part # 71223003HKR for 4L60E/4L65E/4L70E Transmission Part # 71223004HKR for 4L80E/4L80E Transmission Part # 12650HKR for TH400/200R4 Transmission *NOT COMPATIBLE WITH TREMEC TR6060 TRANSMISSIONS.

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

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