La1 3400

hey, well i have given up on the turbo idea, way too much work and money, but i am toying around with another idea, seeing as the 3.1 v6 engine in my 94 cav has 132k on it, i am considering the idea of pulling the 3.1 and dropping an LA1 3400 in it, it is pretty similar to the 3.1, i would like to know, from anyone who may know anything about the 3400, what would i need to do this? would i be able to keep my current transmission? any help would be nice, thnx.