transmission mounting problems 307 for Chevy sb 350

I have and an 84 supreme and i locked up my 307 and i have a sb chevy 350 and i was wondering if there were any issues with this engine mounting to the oldsmobile transmission or will i be a simple motor for motor swap. I am greatful for any help you can offer.

Generally speaking, Buick, Olds, and Pontiac (BOP) transmissions have a different bolt pattern than Chevy/Cadillac transmissions. Places like Summit Racing sell adapter plates to interchange the transmissions.