Unless you have a 351 putting out about 200 hp get the urethane mounts or learn how to do fiberglass and paint work. Your sidepipes will hit the bottom of the opeining on the passenger side and probably the top on the driver side. You will notice a reduction in rocking of the car also since the engine cannot establish momentuem as it can with the rubber mounts.
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Originally Posted by Mark IV
The mounts are 80's era Mustang 5.0 coupe (converts are different) but I suggest you contact Olthoff Racing and purchase the urethane mounts they sell. The difference in harshness is not noticed, but the lack of the engine "shaking and baking" around the engine compartment is! Plus you will be less likely to have your sidepipes contact the body on a hard launch.
You will need to cut the steel tube that passes through the chassi bracket about .50" on each end to fit the Olthoff mounts.
They are well worth the investment.
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