Motor mount info needed for LA small block
What about urethane mounts?
Urethane has been the buzz of the suspension industry for many years now. Because it is firmer than rubber, it is well suited to suspension bushings in high-performance applications, since it “gives” less during hard cornering. However, this very feature that makes urethane a good material for suspension components can cause problems in motor mounts. Remember that a motor mount must have considerable “give” to absorb engine vibrations. DynaTech tests have shown urethane to have a tendency to “shear” in motor mount applications, particularly in vehicles with high-performance engines that have long-duration camshafts.
Rubber mounts with the old bolted down chain on the driver side. Get the chain tight and then back it off a hair.
AMC Lo tech!
$134 a set, whoa! Here is what they (Mity Mounts) about polyurethane:
What about urethane mounts?
Urethane has been the buzz of the suspension industry for many years now. Because it is firmer than rubber, it is well suited to suspension bushings in high-performance applications, since it “gives” less during hard cornering. However, this very feature that makes urethane a good material for suspension components can cause problems in motor mounts. Remember that a motor mount must have considerable “give” to absorb engine vibrations. DynaTech tests have shown urethane to have a tendency to “shear” in motor mount applications, particularly in vehicles with high-performance engines that have long-duration camshafts.
Rubber mounts with the old bolted down chain on the driver side. Get the chain tight and then back it off a hair.
AMC Lo tech!
