Description
A top-end rebuild demands precision components that can handle the demands of Evolution Big Twin performance. The Wiseco K1643 Piston Kit delivers the complete package—forged pistons, rings, pins, and gaskets—engineered from high-silicon aluminum alloy to handle overboring or stock-bore rebuilds with reliable durability. Whether you’re refreshing tired compression or building for sustained performance, this kit gives you the precision fit and proven reliability that serious Harley builders depend on.
- Fits: 1984-1999 Harley-Davidson Evolution Big Twin
- Displacement: 1361cc
- Bore Size: .030″ overbore
- Material: High-silicon aluminum alloy
- Construction: Forged pistons
- Kit Includes: Pistons, rings, wrist pins, circlips, gasket
- Installation: Bolt-on top-end
- Note: Cylinder sleeves sold separately
- MPN: K1643
