Wiseco SK1380 Top End Rebuild Kit 83.00mm 1.00mm Oversize Ski-Doo 800R PTEK 2-Stroke

The Wiseco SK1380 is a complete top end rebuild kit engineered for the Ski-Doo 800R PTEK 2-stroke engine. Bored to 83.00mm — 1.00mm over standard, this kit provides everything needed to oversize or restore the top end in a single purchase, eliminating the guesswork of sourcing individual components.

At the heart of the kit are Wiseco's Pro-Lite forged pistons, CNC machined for optimal cam shape and profile to deliver peak horsepower and extended service life. The pistons are forged from a high-silicon aluminum alloy for a superior strength-to-weight ratio and outstanding durability under the extreme demands of snowmobile performance riding.

Kit Includes:

• Forged Pro-Lite piston(s) — 83.00mm bore diameter (1.00mm oversize)
• High-performance piston ring(s)
• Wrist pins (alloy pin included for extended life)
• Circlips
• Complete top end gasket set (head, base, and upper end gaskets)

Key Features:

• Pro-Lite pistons CNC machined for optimal cam shape and profile
• Forged from high-silicon aluminum alloy for maximum strength and dependability
• Dedicated forgings provide superior strength-to-weight ratio using aerospace-grade alloy
• Innovative forging design and piston skirt engineered for maximum horsepower and torque
• Precision crafted and forged in the USA
• Single-ring piston design for the 800R PTEK application

The SK1380 is a purpose-built solution for riders looking to restore compression and performance on a worn top end, or to take advantage of an overbore during a cylinder sleeve replacement. Note: cylinder sleeving to the appropriate oversize bore is required when installing this kit.