GM Generation III & IV V8 Engine Mounts
for
TJ & LJ Wrangler Jeeps
Novak's engine mounts for the Jeep TJ & LJ Wranglers provide great strength and a precise GM Gen III+ V8 engine installation.
Weld-In Version, Replacing I4 & I6 Frame Brackets
Kit contents:
- Frame platform sets
- Upper urethane bushings
- Lower urethane bushings
- Engine block plates
- Fastening hardware
- Instructions
This version of our TJ / LJ mount is for GM Gen III+ V8 engines, entirely replacing the existing Jeep I4 or I6 frame mount.
Removal of the factory frame mounts for both 2.5L I4 and 4.0L I6 engine Wranglers is required. This is best done with a separating disc, plasma cutter, torch, or reciprocating saw, followed up by a grinder or flap-wheel.
The Novak frame bracket, as welded to the Jeep frame rail
Bolt-In Version, Replacing I6 Engines
Kit contents:
- Frame platform sets
- Upper urethane bushings
- Lower urethane bushings
- Engine block plates
- Fastening hardware
- Instructions
This version of our mount allows you to retain your 4.0L I6 engine frame horns when using a GM Gen III+ engine. Trimming of these factory frame horns is required, then they will be bolted through the top then drilled and bolted or optionally plug-welded at the flanks.
The Novak MMTJ-G6 frame bracket, as attached to the Jeep frame horn and the engine
Features
Ease of Installation
These mounts are available in either weld-in style or bolt-in style. Detailed instructions will guide to an ideal installation.
Strength
The Novak mounts feature thick 3/16” laser cut and CNC bent steel construction. Engineered using a welded box design geometry to provide maximum strength and assure that they will survive even the wildest V8's. When the option is available, we recommend the weld-in version for strength, simplicity and just a cleaner installation. If a welder is not available the bolt-in is an excellent option saving that step.
Vibration Isolation
Each mount kit comes with our high-grade urethane isolators that are specified for that ideal balance of isolation and firmness with the power of modern engines. Substantial 5/8” through bolts capture the assembly. Replacement bushing sets are available below should replacement ever be needed.
Compactness
Geometry of the mounts is compact to provide clearance for all stock components including the steering shaft with its pillow block and the recommended exhaust headers below.
Engine Mount Finish
The Novak frame bracket, as welded to the Jeep frame rail.
As the mounts are welded to the frame, any finish on the frame side brackets as well as the frame would be burned. you may enamel, powder coat or otherwise finish the bracketry and adjacent frame area to your own style. Engine plates are coated in a rust resistant finish but may also be painted.
Applications & Compatibility
Compatible Jeeps
- MMTJ-G3: These mounts fit all 1997-2006 Jeep TJ / LJ Wranglers.
- MMTJ-G6: These mounts fit all 1997-2006 Jeep TJ / LJ Wranglers originally equipped with the inline 6 only.
Compatible Engines
These mounts will fit the GM Gen III & IV LS / Vortec V8 engines.
Related Products
Installation Requirements
Engine Placement
We have predetermined engine placement for the installer. There is a very fine window in which the GM Gen III & IV engines can properly fit into the TJ Jeep, and we've done this design legwork already.
Steering Bracket
These mounts feature an integrated platform for the reinstallation of your steering shaft carrier bearing bracket, as you may be removing the factory version. If installed correctly, the safety of your steering system will meet or exceed the factory specifications. Whether and how this is done varies with the original engine in your Jeep and the type of mount selected. Some (but not all) models use an additional spacer bracket that is supplied.