They're Mahle pistons and Molnar rods I think. I'll be honest, with it being a higher mileage swap I knew the pistons were going to be loose so I just hit the cylinders with a 3 jaw hone. Dropped the pistons in and felt the clearance by hand and decided it was close enough. I know they're looser than I'd like but I don't want to know the number or it'd bother me.

1975 Jeep Cherokee compound turbo 5.7 Hemi/6 speed AutoX/Drag/Street.
9.97 @ 140 slicks, 10.74 in autox trim