I read in an Aceshigh thread that this trans comes in three bellhousing bolt patterns: BOP, Dual BOP/Chevy, and Chevy - is this correct? I guess that means that the Chevy pattern will only fit a SBC? I'm asking because I found a 5CQ (Monte SS), which I think has the dual bellhousing, but I'm not sure. Looking at the pic, it looks like it has the two sets of holes, but it's also got the Chevy "peak." From the drawings on the above mentioned thread, it looks like the Dual pattern has a flat top, not the Chevy peak. I apologize if this has been covered in another thead, I searched but could'nt find an answer. Thanks for any help - mark



https://classicoldsmobile.com/forums...i-learned.html

 

That is a dual pattern bell.

 

x2

 

The giveaway is the double holes on the two ears at the top of the pattern.

 

Thanks guys, stand by for a billion ignorant questions as I work throught this swap...