SPI .020 Over Bore Piston Kit for Polaris STORM 800 fits 1994-1998 Models 72.5mm

.020 Over Bore Piston Kit for Polaris

This SPi .020 over bore piston kit provides a 72.5mm piston for rebuilding the Polaris Storm 800 engine, allowing an oversize of 0.020 inches to restore compression and performance.

Overview

This .020 over bore piston kit from SPi is designed for the Polaris Storm 800 engine, offering a 72.5mm piston to bring worn cylinders back to specification. Ideal for rebuilding the top end of a 1994-1998 Storm 800, this kit includes the piston, rings, and wrist pin for a complete installation.

Built For Performance

• Includes piston, rings, and wrist pin for a complete piston assembly
• Manufactured to precise specifications for a proper fit in the cylinder bore
• 0.020 inch oversize allows for machining of worn or damaged cylinders
• Designed to withstand high RPM and heat common in snowmobile engines
• Direct replacement for the factory piston in Storm 800 models

Fits These Machines

• for Polaris Storm 800 (1994-1998)

On-The-Job Use

• Snowmobile engine top-end rebuild
• Performance restoration of older Storm 800 snowmobiles
• Replacing worn pistons to improve compression and power output
• Trail riding and recreational snowmobile maintenance

Specs At A Glance

Good To Know

Q: Is this piston kit compatible with other Polaris models? A: This kit is specifically designed for the Polaris Storm 800 engine; it will not fit other models without modifications.

Q: What additional parts are needed for installation? A: You will need cylinder boring to 72.5mm, new gaskets, and possibly a new cylinder head or base gasket depending on condition.

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