engine and tranny?

I have a Question and it may kinda seem dumb so sorry, i have a 1995 buick century with a 3.1 liter v-6. my tranny went out on it so my buddy has a 1995 chevy beretta. He sold me the engine and tranny out of that. My question is this should fit no problem in my buick and be compatable correct? tranny and all thank for your time

Oh by the way the engine is also a 3.1 liter in the beretta

Should bolt up just fine, although, I would have posted here before buying the engine on the off chance they would be different!

It will fine, you will want to use your old axles (or buy new ones) and your old mounts. There should already be bolt holes where your mounts go.