Because nobody makes them, I've decided to construct my own poly-urethane motor mount (the under the motor mount).
Step 1 - Get a stock fluid filled motor mount.
Step 2 - Cut the corners out, drain the fluid, and clean insides with some carb-cleaner or something of the sort.
Step 3 - Acquire 1 pound of Shore 94 urethane, mix, and pour
Step 4 - Let cure for 7 days. Install and enjoy!
Here ya go!
I got the urethane from mcmaster.com It was shore 94 hardness. Harder than ZZP's poly under motor mounts.