Did a 5.7 swap in a 72 Challenger for a customer. Has the A833 O.D. trans. As Map63Vette already mentioned, a conversion flywheel(130 tooth), and trim the input shaft. You can use the Magnum input bearing that presses into the crank register. One caveat, if it's a car 5.7, you'll have to remove a sleeve out of the crank register first. Used TTI headers and bone stock clutch linkage. Rylis Productions has the flywheel. I've used 4 of his flywheels now. Very nice pieces.