I have two of the MP crate shortblocks...both have the speed pro H116cp pistons...both are 89-91 LA 360 that are set up for the roller cam...but came with the mopar hydraulic cam....
they are two different part numbers...one has the pistons down .037 in th bore...and one has pistons above the deck .018...
tell him to take off the valve cover and take a picture of the roller rockers too