Please don't rip me a new one, but....

Bought another truck, pretty solid this time, 1980 D150 short box. Has a 3spd manual on the floor with a slant six. Can the 3spd bell housing be swapped so it will bolt to my 360LA block?
I dont think the slant six bell housing will bolt to a V8 block. What engine are you going to put in it? Also don't forget to post pictures of your build.