Review on Enhance Performance with Energy Suspension 3.1116G Clam Shell Type Engine Mount for GM by Gavin Dunne

Seems like a decent product until I put the motor back in. The tongues buckled under the LS3's weight, and the bracket detached and dangled in the GM clamshells. When they were taken out of the car, the polyurethane material broke and wore out, rendering them unusable. I replaced them with an anchor frame mount kit and the motor came up with no problems. Probably just a bad set I got but I would never spend money to try them again. It was a huge waste of time on my build.