The whole thing about rodding is "use what ya got." I wouldn't suggest using a Mitsu engine in a Chev truck, but the other way round is cool. I am a Dodge guy, but if a Chevy is in your shop, taking up room, go for it! And leave the badges on it just to PO the purists.
A neighbour dropped a 305 in a Mazda pickup for a daily beater and drove it for years. The "Chinese" rear end held up well, and he overloaded it something fierce, he's a building mover by trade and carried blocks and jacks in it all the time. The body finally dissolved and he junked it.