67-72 V8 LH motor mount limiter plates

An engineer friend of mine and I looked at the interlocking poly mounts and the cost, figured theres got to be a better way using stock mounts and something just added on that under normal conditions is "just there" but interlocks and limits under hard acceleration. Something added over stock mounts in order to keep the vibration down but still prevent the mount from ripping. Nothing like a chain or something that would be in the way. More like something that would have been dealer added on a vehicle recall. So it had to be simple, easy to install, and not stick out like a sore thumb. My brothers 68 camaro SS/RS had a cable arrangement on the motor mounts years ago that was a dealer recall to add in because of mount failure.