[RallySnake]

Turk,

I fought this problem for years. With rubber engine mounts, I was always breaking something. Usually the header tubes would crack and the rubber sidepipe mounts kept breaking, too. When I rebuilt my engine, I had it very carefully balanced with the harmonic balancer, flywheel and clutch. At Ron Butler's suggestion, I run solid motor mounts.

I used 2 angle brackets for each sidepipe. Each one is 1" by 1/8" in cross section. The driver's side rear one broke a couple of times due to a hole I drilled in it to dissipate heat before it got to the frame. I made a slightly larger one that is 1.25" by 3/16" without holes. I made it to Texas and back and have run three rallies without another problem. I was worried that the solid engine mounts would cause the car to vibrate. They don't.

Paul