Domed Motorcycle Piston with ProLite Technology, Wiseco 4725P4
Wiseco pistons set the standard with the latest technology in forging, materials, piston design, engineering, and ISO-certified quality. Wiseco works with top racers and industry-leading engine builders to create highly innovative pistons that are proven to deliver performance and longevity in high-revving, high-horsepower engines.
Includes:
- 1x Wiseco ProLite Compression Forged Piston
- 1x Wiseco Piston Ring Set
- 1x Wiseco Wrist Pin
- 1x Wiseco Round Wire Wrist Pin Locks / Circlips (pair)
Features:
- Every Wiseco ProLite piston includes piston, ring, wrist pin, and circlips
- High performance rings designed for improved bore conformance and compatibility for long service life and friction reduction
- Forged from proprietary Aerospace-grade materials
- Hand-deburred to ensure out-of-the-box performance
- High-strength, lightened, precision-machined wrist pins for heavy engine loads and reduced reciprocating weight
- Precision ring grooves optimize ring and provide longevity ride after ride
- Manufactured with the latest CNC equipment and techniques allowing proper clearances in critical areas
Specifications:
- Displacement: 1369cc
- Bore: 3.538 in
- Stroke: 4.250 in
- Domed Volume: +12.9cc
- Compression Ratio: 10:1
- Piston Material: Forged aluminum
- Wrist Pin Style: Floating
- Top Ring Material: Cast iron
- Intake Pocket Diameter: 2.080 in
- Intake Pocket Depth: 0.143 in
- Exhaust Pocket Diameter: 1.740 in
- Exhaust Pocket Depth: 0.138 in
- Note: This is the rear piston. See related items for front piston.
Fitment:
- 1984-1999 Harley Davidson 1340 EVO Big Twin - 80 Cubic Inch
