These are the pistons it has. I think they're badger. That's all I know about them. I think I'm going to try Crane Hydraulic Flat Tappet Camshafts 969681 with new springs, push rods, lifters, 1.65 rocker arms and 2500 torque converter. Maybe I'll replace the 7/16 by 3/8 rocker studs to just 7/16" studs.