Description
A worn or stock piston setup limits your Big Twin’s potential for reliable power and efficiency. The Wiseco High Compression Piston Kit delivers the strength and precision engineering needed for serious top-end rebuilds, whether you’re overboring for displacement or restoring your engine to peak performance. This complete kit eliminates the hassle of sourcing individual components, giving you everything required for a professional-grade rebuild.
Wiseco’s high-silicon aluminum alloy forging resists thermal stress and detonation—critical factors in high-compression applications where engine internals face extreme pressures. The precision-manufactured tolerances ensure proper ring seating and piston-to-cylinder clearance, reducing blowby and oil consumption while maximizing combustion efficiency. With the gasket set included, installation becomes straightforward; just verify your bore size and get to work.
- High-silicon aluminum alloy
- Forged pistons, rings, wrist pins
- Circlips included
- High compression ratio
- Fits 1978-1984 Harley Big Twin
- Top-end gasket set included
- Complete rebuild kit
- Precision manufacturing tolerances
- Cylinder sleeves sold separately
- MPN: K1623
