if your going to get the engine mount kit and the caddy motor has a hei you should be able to make the swap real easy , if you want headers that can be a pain, you can get caddy flanges and adapt them to a set of big block headers for your car,i dont know if the caddy suppliers had headers for many applications, you dont need much gear in it mine has 3.50 and thats on the far end for a 500. Be ready to spin tires