73-77 A- body 455 Buick frame mounts - $150 (Wheaton IL)

These are a pair of rare factory 455 73 buick Century Gran sport frame mounts.
They allow a 455 Buick to be properly installed in any 73 to 77 GM A body without the motor sitting on an angle.
These are rare, were only produced for the 73 and 74 factory installed 455 Century Gran Sports and 455 regals and were never reproduced.
You can use other year and frame mounts but the motor tilts to one side.
I have 2 pairs.