SPI .040 Over Bore Top End Repair Kit for Polaris Snow 1986-1999 500 F/C 73mm

SPI .040 Over Bore Top End Repair Kit for Polaris

This SPI .040 over bore top end repair kit is designed for Polaris Snow 500cc F/C engines from 1986-1999, with a 73mm bore size to restore compression and top end performance.

Overview

The SPI .040 over bore top end repair kit for Polaris Snow 500 F/C engines provides all necessary components for a complete top end rebuild. This kit includes a piston, rings, gaskets, and seals for the 73mm overbore. It is ideal for restoring lost compression and power on Polaris snowmobiles from 1986-1999.

Built For Performance

• Precision-machined piston with .040 overbore for increased displacement
• High-quality rings ensure optimal sealing and compression
• Complete gasket set for a reliable top end seal
• Direct replacement for Polaris 500 F/C engines
• Durable construction for long-lasting performance

Fits These Machines

• for Polaris Snow 500 F/C (1986-1999)

On-The-Job Use

• Rebuilding Polaris snowmobile engines after wear or damage
• Restoring lost power and compression in older snowmobiles
• Replacing worn top end components during engine overhauls
• Improving engine reliability for the riding season

Specs At A Glance

Good To Know

Q: Does this kit include wrist pin and circlips? A: Yes, the SPI top end repair kit typically includes a wrist pin and circlips for complete piston installation.

Q: Can I use this kit on a Polaris 500 with standard bore? A: No, this kit is specifically for .040 overbore; the standard bore requires a different kit.

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