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.
Bore (in):3.642 in.
Piston Style:Dish, with no valve reliefs
Piston Material:Forged aluminum
Compression Distance (in):1.181 in.
Piston Head Volume (cc):+17.80cc
Wrist Pin Style:Press-fit or floating
Pin Diameter (in):0.906 in.
Top Ring Thickness:1.2mm
Top Ring Material:Steel
Top Ring Facing Material:Gas nitrided
Second Ring Thickness:1.2mm
Second Ring Material:Cast iron
Second Ring Facing Material:Phosphate coated
Oil Ring Thickness:2.8mm
Oil Ring Material:Stainless steel
Oil Ring Tension:Standard
Quantity:Sold as a kit.
Notes:Tab style oil ring.
Part # K579M925