Compatibility isn't an issue in "Most" cases The only problems I know about are trying to go from an automatic transmission to a manual or back and making sure your axles are compatible with each other. but I think those are the 2 major areas as far as I know at the moment, I am sure someone will correct me if I am wrong, but You got a heck of a deal, Just be careful with those shops, personally I would listen to the groups of car junkies that seem to have more sense than money. they "Generally" know who locally to trust when it comes to shops working on their cars.