Pretty simple really. Intake manifold pattern is different from la to magnum, but if you buy one with the intake on it, that's a non issue. We use an LA timing cover, so makes it easy. We also sell, or include the correct weight balancer. Flywheel is an LA 360. Anything else I can think of is actually 318 to 360, or pre/post 1970 nuances, but that's smallblocks in general. Not magnum related.