FOR TEMPORARY USE AND JUST TO START IT UP... will use a mechanical guage for oil pressure. now since it is pretty positive that many of the original features of the m38a1 have been lost to history in this motor, damn if i can find the place where the actual oil will go to the sending unit. there is a strange oil line that is on the oil pump side that goes from bottom of engine to the head on back of motor, what in the heck is that?. do you put a "T" fitting where the oil goes to the filter for the oil pressure?? damifiknow