Wiseco SK1408 Standard Bore 77.25mm Top End Piston Kit for Polaris 600 Liberty

The Wiseco SK1408 is a complete top end piston kit designed for the 2007–2009 Polaris 600 Liberty carbureted snowmobile engine. Built to standard bore at 77.25mm, this kit delivers everything needed for a thorough top end rebuild in a single, convenient package.

Key Features:

• Forged piston constructed from high-silicon, low-expansion aluminum alloy for superior strength, reduced weight, and improved heat transfer
• CNC-machined Pro-Lite design with optimized cam shape and profile for peak horsepower and extended service life
• Dedicated forgings provide an outstanding strength-to-weight ratio using aerospace-grade alloy
• High-performance ring set included for extended life and sustained power output
• Precision alloy wrist pin included for consistent, durable performance
• Circlips included for complete, ready-to-install assembly
• Top end gasket set included — everything required for a proper rebuild in one kit
• Compatible with cast iron, chrome, Nikasil, and boron composite cylinder bore compositions

Wiseco's SK top end kits are engineered to make your rebuild straightforward and reliable. All components are precision-matched to Wiseco's forged pistons, eliminating the need to source individual parts separately. This kit is designed specifically for the Polaris Liberty 600cc carbureted (2-stroke) engine, ensuring an accurate fit and factory-correct dimensions right out of the box.