Other than the parts on the rear of the engine listed above the only other thing off a SBC that will bolt right on is the alternator and the accessory drive pulleys that bolt on the damper if you need it. Even at that there are a bunch of lower V8 and Inline pulleys depending on the year and the added accessories. All the valve train stuff like pushrods and rockers are different and the fuel pump is different. The thermostat and the housing will fit but the t-stat housing may not point the hose to the correct location on the radiator. The timing cover seal is the same as the SBC and that is pretty much all that is a direct interchange.
Hope this is a little more help.
Mike
