By the way, if you get in there and find you need some machine work on something don't take it ti that slug in Morrilton, he couldn;t find his **** with both hands. Run it into Little Rock to Hillcrest Camshaft, they are a heavy diesel specialty shop. they do all the work for the IH dealer . amd you are going to have to have a bottoming tap to clean the block threads out and only one place in the state carries them, all the rest say they have them over the phone but when you walk in the door they try to sell you a plug tap and that will not clean the threads all the way to the bottom ( plug tap is a standard tapered tap for starting a new thread) your new gasket will not torque down properly if a bottom tap is not used