AMC V8 Universal MMX Series Engine Mounts

for

Jeeps and Other Vehicles

These engine mount kits are for AMC V8 engines into various Jeep models. Our MMX Series of mounts offer the most strength, adjustability and modularity available.

AMC Mounts for Narrow Frame Jeeps

GM V8 Vortec LS Engine Mounts for Jeeps

Kit MMX-NA1, engine mounts, AMC V8’s into narrow frame Jeeps

  • *CJ models
  • *FC Series
  • *Commando Models
  • *Utility Trucks & Wagons
  • other vehicles with parallel frame rails and an inside to inside frame width of 25" - 27-1/2"

Kit contents:

  • Frame platform sets, sliding pairs
  • Frame anchor brackets
  • Upper urethane bushings
  • Lower urethane bushings
  • Engine block plates
  • Fastening hardware
  • Instructions
* "Low Hood" and other early Jeeps don't really have the room for AMC V8's. These engines require a large envelope in length and the lack of availability of block-hugging headers make these unusually difficult for most Jeeps made prior to 1972.
See Applications & Compatibility, below.

AMC Mounts for Wide Frame Jeeps

GM V8 Vortec LS Engine Mounts for Jeeps

Kit MMX-WA1, engine mounts, AMC V8 engines to wide frame Jeeps

  • YJ Wrangler
  • FSJ Trucks, Wagoneers and Cherokees
  • other vehicles with parallel frame rails and an inside to inside frame width range of 27-1/2" to 31"

Kit contents:

  • Frame platform sets, sliding pairs
  • Frame anchor brackets
  • Upper urethane bushings
  • Lower urethane bushings
  • Engine block plates
  • Fastening hardware
  • Instructions

Features

Ease of Installation

These mounts are weld-in style and 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 advanced CAD modeling and real world testing; these mounts have shown to handle even the wildest V8.

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.

Adjustability

The design on these mounts allows outstanding placement freedom in most any vehicle that meets the width requirements and has parallel frame channels. They have a large adjustment range for placement in the vertical, left-right offset, and longitudinal directions.

Engine Mount Finish

All parts except the frame brackets are zinc coated for resistance against corrosion. As the frame brackets are welded to the frame, any finish on the frame side brackets as well as the frame would be burned. The welded channels will need to be finished but you may enamel, powder coat or otherwise finish the bracketry and adjacent frame area to your own style.

Applications & Compatibility

Engines

The AMC V8

These mounts will fit nearly all AMC V8 engines including the 304, 360 and 401.

Some commentary on AMC engines in Jeeps: AMC engines are pretty cool, and they have an important part in AMC's history. However, they can be really challenging to refit into many models of Jeep where they weren't originally installed from the factory. No disrespecting AMC engines, but installers will find their GM, Ford, and Buick engines easier to install in nearly every case. Some of this has to do with engine envelope size, as well as aftermarket momentum in supporting them, vis a vis a lack of exhaust header options, shorter front accessory options, etc.

However, if you have a great AMC engine and the room, plus the strong desire to install one, it can be a success.

Related Products


AMC V8 Engine
Engine Mount Bushings, spares
Radiator for AMC engines in Jeeps
Pilot bushings for Jeeps

Installation Requirements

Old Mount Removal

Unbolting or cutting is required to remove the factory frame mounts for factory Jeep engines. This process will vary from model to model. you will want to completely remove and smooth the surface of your frame rails for a nice fitment of the new engine mount channels to your frame.

Driveshafts

Driveshaft length changes are often required. Most conversions to these transmissions will require that the rear driveshaft be modified to be shorter and front driveshaft longer.

Some installers, concerned about the expense of new or modified driveshafts, attempt to let the existing driveshafts dictate engine, transmission and transfer case location, often to the detriment of the project. Our recommendation is to prioritize the correct position of drivetrain components over saving a few dollars which is usually regretted in the long run with compromised positioning.

Driveshaft modifications and rebalancing can be affordable when performed by driveline, RV or tractor implement specialists. New driveshafts are an option, but not necessarily a requirement in regards to the actual successful conversion if your existing driveshafts are in good condition.

Jeeps that require extensive travel or specialty-built driveshafts have this option available through several fabricators across the nation. These are normally specified after placement of the new transmission and measured at vehicle ride height. As the rear driveline gets shorter, it is often advantageous to us a Double Cardan or “CV style” rear shaft with the correct geometry at the axle to minimize vibrations and possible binding.

Axles

Use of factory axles is completely acceptable with this conversion. Axle upgrades are not necessary, but they may be chosen for reasons external to this transmission upgrade.

Also See