Thread: Failed American made motor mount

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Dave, it could be that the bonding simply failed, but it might be something else. I was killing the engine mounts in the Jeep pickup I swapped a 5.0 Ford engine into, they would separate like yours after a short time. I found out what was doing it was that I had them on a bad angle (the bottom portion out a little too far) allowing the engine to want to drop down and tear the motor mounts apart.

What I did on my 27 (also using the same mount you have there) is that I drilled through the mount and put two 3/8 grade 8 bolts through there, mechanically bonding the two steel portions together and reinforcing the vulcanized bond. I knew with the torque the stroker was going to exert on them, especially with a stick shift, that the mounts were going to take a beating, so I used an old drag racing trick.

Just a thought.

Don

Here is how I positioned the bolts, nuts, and washers. WIth this setup it can never break again.