basically you have as close to a bolt in as you can get. You didn't mention any specifics, tranny, a/c or no a/c, etc.. But if you have a donor with all the accys and bracketry you can mount it with little trouble. Last year a customer of mine had me install a 495 cube Olds in a 69, and other than using non-OEM engine mounts, it was like it belonged there it fit so well. Any questions, feel free to drop me a line, speedy_87ss@yahoo.com