well i can tell you from experience, that it is not a "fairly easy swap." you cant just toss it in there, weld up some motor mounts and ride away in the sunset. ive been there and done it. its a huge pain in the ass that requires a lot of time and money. the motor has to be set square and at the right height so you dont have chain issues. the exhaust will have to be custom fabricated. theres a good chance the oil pan will stick down too far and will have to be modded. depending on whether efi or carbs are used, an intake and ignition setup will have to be installed. like i said, its not a cut and paste job.