HELP, 64 Valiant motor mounts

Question: do you have 273 mounts? They wont fit a 340 unless you shim the offending side with a few washers. The rubber/metal insulator should fit if its the offset biscuit type. Bear in mind the oem 64 273 insulator was thick, like 3 inches. Not the thin 1 inch later style. It raises the motor for centerlink clearance.