CAVEAT EMPTOR: although these repro of GM shim 3910756 were only use Big Blocks with AC, they can be mounted to any 63-69 model using original type non locking motor mounts. In 68-69 Big Blocks with AC motor mounts benefited as well from these repro of GM heat shields 3937887.
NOTE: one set does one car. 1963 1964 1965 1966 1967 1968 1969
WARNING: be sure to use longer 3/8" bolts to mount the motor mount to the engine block.