Wiseco SK1356 Pro-Lite Top End Kit 1.00mm Oversize 79.00mm 2-Cylinder Snowmobile

The Wiseco SK1356 Pro-Lite Top End Kit is a complete two-cylinder oversize rebuild solution engineered for Ski-Doo 700 series snowmobiles. Bored to 79.00mm — 1.00mm over standard — this kit provides everything needed to restore top-end performance during an overbore or rebuild service. Designed specifically for Nikasil-lined bores, these pistons feature Wiseco's Electra Coat surface treatment for enhanced break-in characteristics and reduced friction.

At the heart of this kit are Pro-Lite forged pistons machined from high-silicon aluminum alloy. The CNC-machined cam profile is optimized for peak horsepower and extended service life, making this kit equally suited for high-performance applications and recreational rebuilds. Each piston is precision matched and balanced as a set to maintain smooth twin-cylinder operation.

Kit Contents (2-Cylinder Set):

• Forged Pro-Lite pistons (2) — 79.00mm bore, 1.00mm oversize
• Piston rings — 3.110 semi-keystone style (Wiseco part 3110KA)
• Taper-wall wrist pins — 20 x 60.0mm non-chromed (Wiseco part S631)
• Round wire circlip pin locks — 20mm (Wiseco part CW20)
• Top-end gasket set

Important Notes:

• Designed for Nikasil bore cylinders only
• Cylinder sleeves must be purchased separately if resleeving is required
• Wiseco rings are application-specific and are not interchangeable with non-Wiseco rings

Wiseco's Pro-Lite line is a trusted choice for snowmobile engine rebuilds across all skill levels, delivering factory-quality fit and finish backed by decades of forged piston manufacturing expertise.