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Motor mounts by Autofab Motor mounts are often an overlooked item when building a serious pre-runner or off road vehicle. Generally speaking a V8 motor and transmission can weigh upwards of 800 lbs and if you figure in a transfer case on a 4x4 add more. Stock motor mounts just will not hold up under the rigors of off road driving. All Autofab motor mounts utilize a ureathane bushing assembly in the basic design. We feel it is important to isolate the engine from the chassis to eliminate metal to metal contact when designing and constructing engine mounts. Our bushing assemblies accomplish this and by design create an engine mount that will not separate under torque and load conditions. In the early 1980's we were making motor conversions for mini trucks which created the need for a compact universal type of mounting. That led to the BA175 bushing assembly. Offroad trucks were taking off about the same time as this and we experienced problems of a different nature. When bouncing around off road, stock mounts just tear apart and create havoc under the hood. So we incorporated the bushing assembly design into a bullet proof off road competition motor mount. Racing Motor MountsIn all forms of motorsport racing one critical area that requires special attention is the engine mounting. Generally motor mounts are made from soft rubber and steel components molded together. Fine for stock automobiles but for racing, in particular off-road racing, stock mounts would separate from the engine torque against them. This ultimately led to limit cables or solid metal mounts. The problem with solid metal mounts is fatigue cracking, caused from engine harmonics and vibration, eventually caused something to break. Sometimes the casted area on the engine block would disintegrate as well causing immense financial pain. All the high buck engines are mounted with motor plates. These bolt to the front and back machined surfaces of the engine block and require special attention to water pumps, pulleys, flywheels, and bellhousing alignment. This is the ultimate method but very expensive and time consuming. Strictly for the trophy type trucks and tube chassis vehicles. Autofab mounts offer an economical alternative to the motor plates.
A simple alternative, an Autofab Racing motor mount. Developed in the late 70's we originally used leaf spring bushings but with the coming of urethane switched to our present Bushing Assembly (shown above). I honestly can't claim the idea of this style of mounting , but I believe that Autofab is the originator of this style of motor mount, in a bolt on design, dating back to the days of V6 conversions into mini-trucks. I remember seeing a mount like this, in the 1970's, on a truck built by Walker Evans and I liked the idea very much for my own application. All our motor mounts use the same concept with either BA175 or BA200 bushing assemblies. Check out all the different ways we have come up with to mount engines.
Off Road Motor Mounts Autofab has been making competition style motor mounts since the early 1980's starting with our V6 and V8 conversion kits. By design they were convenient for construction purposes in tight areas and the plus side they are bulletproof! They offer the best of both worlds without the stress of metal solid type mounts. The ureathane bushing allows some forgiveness yet keeps the motor in place. You notice right away because the whole truck will torque over when you rev it rather than the engine just moving. Stock motor mounts just will not hold up under offroad use Note: For competition and severe off road use we recommend 4 to 5 point mounting. For bell housing mounts you can use our BA-175 or BA-200 bushing assemblies. For transmission mounting, see our C4 and C-6 mounts for Fords and turbo 350-400 mounts for Chevrolet. Jeep Mounts
Chevy Mounts
Ford Mounts
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