I have a 76 century with a buick 350. I also have in storage. in another state, a 77 Century calif built with a 350 chevy. Did buick use BOP and C trans those years? Wondering if they are swappable but at odds since I cannot put my eyes on it to look. Thanks!
Its a good possibility that the cases are dual pattern. In other words, they would interchange between Chevy and BOP patterns
This is what a dual pattern or unicase turbo 350 looks like. As you can see it has a peak but still fits a Buick