2 SPI .020 Over Bore Piston Kits for Ski-Doo Most 1980-2006 380 F/C 62.5mm

2 SPI .020 Over Bore Piston Kits for Ski-Doo Most 1980-2006 380 F/C 62.5mm

These 2 SPI .020 over bore piston kits are replacement pistons designed for Ski-Doo snowmobiles from 1980-2006 with a 380 F/C engine, featuring a 62.5mm bore size and .020 oversize to restore cylinder compression and performance.

Overview

This set of 2 SPI .020 over bore piston kits for Ski-Doo provides a direct-fit replacement for 380 F/C engines, using a 62.5mm bore to refresh worn cylinders. These piston kits are intended for Ski-Doo models from 1980-2006, offering a reliable solution for rebuilding the top end of your snowmobile engine.

Built For Performance

• Includes two pistons with rings and wrist pins for a complete top-end rebuild
• .020 oversize bore allows for cylinder honing to restore compression and reduce blow-by
• Precision-machined from high-strength aluminum alloy for durability under load
• Designed to match OEM specifications for 380 F/C Ski-Doo engines
• Includes circlips for secure wrist pin retention

Fits These Machines

• for Ski-Doo 380 F/C engines (1980-2006)
• for Ski-Doo snowmobiles with 380cc fan-cooled two-stroke engines

On-The-Job Use

• Rebuilding the top end of a Ski-Doo snowmobile engine after wear or seizure
• Restoring lost compression and power in high-mileage 380 F/C engines
• Performing a preventative maintenance overhaul before the riding season

Specs At A Glance

Good To Know

Q: Will these piston kits fit my 1985 Ski-Doo 380? A: These are designed for most Ski-Doo 380 F/C engines from 1980-2006, but always verify your engine's specific bore size and serial number to ensure the 62.5mm .020 oversize matches your cylinder after honing.

Q: Do I need to replace the cylinder or just hone it? A: These .020 over bore pistons are intended for use after honing the existing cylinder to the oversize dimension; if the cylinder is damaged beyond repair, a new cylinder may be required.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.