SPI Top End Gasket Kit for Moto-Ski 1979-1982 for Ski-Doo 1979-1989 503 Fan

SPI Top End Gasket Kit for Moto-Ski and Ski-Doo

This top end gasket kit from SPI is designed for Moto-Ski snowmobiles from 1979-1982 and Ski-Doo models from 1979-1989 equipped with the 503 fan engine, providing essential sealing for engine rebuilds.

Overview

This SPI top end gasket kit includes all necessary gaskets for rebuilding the top end of 503 fan engines found in select Moto-Ski and Ski-Doo snowmobiles. It covers model years from 1979 through 1989 for Ski-Doo and 1979-1982 for Moto-Ski. Ideal for restoring compression and preventing leaks.

Built For Performance

• OEM-spec gasket materials
• Includes cylinder base, head, and exhaust gaskets
• SPI quality control
• Resistant to heat and pressure
• Complete kit for top end overhaul

Fits These Machines

• for Moto-Ski (1979-1982) with 503 fan engine
• for Ski-Doo (1979-1989) with 503 fan engine

On-The-Job Use

• Rebuilding top end of Ski-Doo or Moto-Ski snowmobile engines
• Restoring performance and reliability for vintage snowmobiles
• Used during engine overhaul or gasket replacement

Specs At A Glance

Good To Know

Q: Does this kit include a head gasket? A: Yes, the kit includes cylinder head, base, and exhaust gaskets.

Q: Will this fit a 1985 Ski-Doo 503? A: Yes, it fits Ski-Doo models with the 503 fan engine from 1979 to 1989.

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