Don't believe the story about swapping the oil pan and flywheel and your good to go. It will run like that . I have the pan swapped, exhaust manifold and front gear case/cover. swapped the throttle lever on top of the pump. To use the original throttle setup required the front cover change. hope it works. Also the crank pulley is different size. Spring setup inside the governor was different. Used the DI setup and hope it works. Used the IDI big spring because I broke the original one. Old cover requires the old style stop solenoid. Just as I was bolting all this up I realized the air intake is backwards. Hope they swap between a IDI and a DI engine. So much for easy.