Reproduction Buick Bellhousing Inspection Plate.
This item will fit BOP bell housings with Buick engines. The starter hole is on the passenger side of the engine.
This inspection plate does not fit ALL B.O.P. bellhousings without opening up or moving two holes slightly. SEE Below.
This is a list of the bellhousing that I have tried this on:
Does not fit without (moving the 2 front holes slightly).
GM Casting #9785581