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Holley Kits

Hooker BlackHeart LS Swap Kit

1987-1995 Jeep Wrangler YJ LS Swap Kit

Part # VK090231
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Vehicle emissions regulations are not applicable to this item.

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GM LS Engine Swap Kit Includes Engine Mounting Brackets, Clamshell Engine Mounts, Poly Inserts, Through Bolts, and Transmission Mount. Add some series torque and power to your Jeep Wrangler YJ with a GM LS engine swap. These engine-mounting components are a fully engineered swap system that provides maximum component clearances, ideal drivetrain geometry and clearance for swap headers & 3.00" high-tuck exhaust system. These engine mounts work together with the stock skid plate / transmission crossmember to mount the transmission & stock NP231J transfer case.


  • Add V8 Power & Torque to your 1987-1995 Jeep Wrangler TJ with a GM LS Engine Swap
  • Fits Jeeps that Came from the Factory with a 4 or 6-Cylinder Engine
  • Works with or Without a Body or Suspension Lift
  • Designed to install a GM LS engine with TH350, TH400, 4L60E-4L70E, 4L80E or 6L80 transmission into Jeep Wrangler YJ w/ NP231J transfer case with aftermarket adapter.
  • Compatible with Holley 302-3 or Factory GM LS Truck Oil Pans
  • Maintains the Stock Passenger Side Engine Offset for Optimum Vehicle Component Compatibility
  • Works with Hooker BlackHeart Jeep Wrangler Swap Headers, Y-Pipe, and Exhaust System
  • Works with Factory Skid Plate / Crossmember – Cost Savings Since The Factory Part is Reused
  • Raw Un-Painted Steel for Easy Welding & Strong Mounting Foundation
  • Includes “clamshell” style engine mounts and polyurethane inserts for trouble-free use and serviceability
  • Engine Position Allows for Use of Electric or Mechanical Engine Cooling Fan
Application1987-1995 Jeep Wrangler
Brand Holley Kits
Emission Code6
EngineGM Small Block Gen III/IV (LS Based)
Product TypeEngine & Transmission Mount Kit
Type of ComponentEngine & Transmission Mount Kit
Part NumberVK090231

Vehicle emissions regulations are not applicable to this item.
1) Optimized for Use with GM LS Truck Engines. 2) Fits Jeeps that Came from the Factory with 4 or 6-Cylinder Engines. 3) Body or Suspension Lift is not Required to Install These Mounting Brackets. 4) Designed Specifically for Use with Hooker Blackheart Headers, Y-pipe and Engine Swap Exhaust System for this Application. *Bare steel engine mounting brackets, weld-on design. Requires painting.

*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.