Gen III HEMI Bolt-On Engine Mount Kit for FSJ (Wagoneer, Cherokee, J-Truck)

A Complete Bolt-On Solution for Installing a Gen III HEMI in Your FSJ

Swapping a Gen III HEMI into a Wagoneer, Cherokee, or J-Truck has always required custom fabrication — until now. This JeepHeritage-engineered system is the only bolt-on Gen III HEMI mount kit available for stock FSJ chassis. No cutting. No welding. Just a clean, engineered fit that uses the factory FSJ frame horns as intended.

Engineered for a Modern HEMI Swap — Without Fabrication

Developed in-house, this kit positions the HEMI exactly where it needs to sit for driveline alignment, hood clearance, and long-term reliability. Each component is steel, precision-made, and finished in gloss-black powder coat for durability.

Perfect for FSJ owners who want modern power without modifying the original frame.

Features

• The only bolt-on Gen III HEMI mount kit for FSJs

• Custom engine block adapter plates

• Motor-mount-to-frame brackets designed for factory FSJ frame horns

• Gloss-black powder-coated steel construction

• No cutting or welding required

• Accurate engine position and clearances

• Compatible with Wagoneer, Grand Wagoneer, Cherokee, and J-Truck

• Free nationwide shipping on small parts via UPS Ground

Available Configurations:

Option 1 - Engine Mount Kit

Includes:

• Engine block adapter plates (driver + passenger)

• Motor-mount-to-frame brackets (driver + passenger)

• Motor mounts (driver + passenger)

A complete bolt-on engine mounting solution for Gen III HEMI swaps.

Option 2 - Engine + Transmission Mount Kit

Includes everything in Option 1 plus:

• Crossmember mounting brackets designed for:

  • 4L80E transmission with 1" adapter plate

  • Atlas II transfer case

Ideal for full drivetrain conversions.

A Modern, No-Fabrication Path to HEMI Power

This kit finally gives FSJ owners a clean, reliable way to install a Gen III HEMI without custom fabrication — engineered specifically for classic Jeep chassis.