SPI .040 Over Bore Top End Repair Kit for Polaris Snow 1996-1997 500 L/C 73mm

SPI .040 Over Bore Top End Repair Kit for Polaris

This SPI .040 over bore top end repair kit is a direct replacement rebuild kit for Polaris snowmobiles, designed to restore engine performance for 1996-1997 500 L/C models with a 73mm bore.

Overview

This SPI .040 over bore top end repair kit provides all necessary components to rebuild the top end of Polaris 500 L/C snow engines from 1996-1997. It includes a 73mm piston and rings, gaskets, and wrist pin for a complete repair. Whether restoring a classic Polaris or replacing worn parts, this kit ensures reliable operation.

Built For Performance

• .040 over bore size for renewed cylinder compression
• 73mm piston diameter matches OEM spec
• Includes premium piston rings for improved sealing
• Complete gasket set for hassle-free installation
• Designed for 1996-1997 Polaris 500 L/C snowmobiles

Fits These Machines

• for Polaris 500 L/C (1996-1997)
• for Polaris 73mm bore applications

Specs At A Glance

Good To Know

Q: Does this kit include a cylinder? A: No, this is a top end repair kit containing piston, rings, and gaskets; the cylinder is reused or replaced separately.

Q: What is the recommended break-in procedure? A: After installation, run the engine at varying RPMs without sustained full throttle for the first hour to seat the rings properly.

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