Pro Tru sets include plasma moly 1/16, 1/16, 3/16 pre-gapped ring packages which provide excellent seal, friction reduction, and long life. Pro Tru pistons also come in a variety of volumes that allow the engine builder to choose the exact compression ratio required for their engine.
Wiseco Mitsu Evo 4-9 HD2
Asymmetric Skirt Gas Ported Bore 85.50mm
Size +.020 -
CR 10.5 Piston Set
Part # K669M855AP