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Part number: PT028H3
Product Details
Wiseco Pistons PT028H3 Pistons
Products specifications
Bore 4.030"
Bore (in) 4.030 in.
Bore (mm) 102.362mm
Comp Height 1.56
Comp Ratio @ 64cc 9.8:1
Comp Ratio @ 67CC 9.5:1
Compression Distance (in) 1.560 in.
Dome Volume -8.7cc
File Fit No
Gapless No
Gram Weight 355
Oil Ring Material Stainless steel
Oil Ring Tension Standard
Oil Ring Thickness 3/16 in.
Pin Diameter (in) 0.927 in.
Piston Head Volume (cc) +8.70cc
Piston Material Forged aluminum
Piston Style Flat top, with four valve reliefs
Quantity Sold as a kit.
Rod 5.700"
Second Ring Facing Material Cast iron
Second Ring Material Iron
Second Ring Thickness 1/16 in.
Stroke 3.480"
Top Ring Facing Material Plasma-moly
Top Ring Material Iron
Top Ring Thickness 1/16 in.
Wrist Pin Style Press-fit or floating
Wiseco Pistons PT028H3 Pro Tru Forged Pistons
Flat Top, 4Valve Pocket
Set of 8 Pistons
Rings Included
Replacement Ring: 4030H
Replacement Piston: 5028H3
Also Fits Marine Apps

World renowned for our work building race winning pistons, Wiseco utilizes experience from a diverse background of the most sophisticated engines.

Wiseco?s Pro Tru line creates the best value in forged pistons today. These American made pistons are forged and machined by skilled Ohio craftsmen with state-of-the-art forging presses and CNC machines. By using dedicated forgings specific to the final piston shape, Pro Tru pistons are stronger and lighter than industry standards.

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.

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