I went the opposite direction with my Jeep 97 engine into a 95 jeep. Sharpxmen is right, you wan to use your current distributor, coil, and sensors, ( oil pressure and temp). I needed to use the old engine mounts also, as they were different. The old engine's drain plug was on the back of the oil pan and the current one is on the side. Other the that, I did not see enough difference to change them. good luck