Still being a little baffled, as well as quite a bit poor, I went to a few sites regarding engines. I found out that the engine code for a (example) 3800 Camaro engine is the same as the 3800 Regal engine - VIN code K, and both use the L36 variant of the Buick V6.
So, with the exception of 451ctds (thanks for the encouragement, man), no one has answered me why I _cannot_ replace a 305 on a 1987 Regal with a 3800. Is it a question of a subframe, or a new cradle that is used in a Camaro (or the FWD car line up)? Vuarra
Quid quid latine dictum sit altum videtur. (That which is said in Latin sounds profound.)