3 Piston Kits 1993-1996 for Ski-Doo 780 Formula Mach Z .020 Over Bore Size 70mm

3 Piston Kits (0.020 Over) for Ski-Doo 780 Formula Mach Z

This set of three piston kits is designed for Ski-Doo 780 Formula Mach Z snowmobiles from 1993 to 1996, featuring a 0.020 over bore size of 70mm for rebuilding worn cylinders.

Overview

These 0.020 over piston kits provide a direct fit for Ski-Doo 780 Formula Mach Z engines, restoring lost compression and power. Each kit includes a piston, rings, wrist pin, and circlips, making them ideal for top-end rebuilds. The 70mm bore size with 0.020 over ensures compatibility with oversized cylinders for 1993-1996 models.

Built For Performance

• Precision-cast from high-silicon aluminum alloy
• Machined to 0.020 over specification
• Includes chrome-plated rings for durability
• Wrist pin with needle bearing
• Standard-weight design for balanced performance
• Comes with all necessary hardware

Fits These Machines

• for Ski-Doo Formula Mach Z 780 (1993)
• for Ski-Doo Formula Mach Z 780 (1994)
• for Ski-Doo Formula Mach Z 780 (1995)
• for Ski-Doo Formula Mach Z 780 (1996)

On-The-Job Use

• Snowmobile racing
• Trail riding
• Mountain climbing
• Recreational snowmobiling

Specs At A Glance

Good To Know

Q: Are these pistons suitable for a stock cylinder bore? A: No, these are 0.020 over size, so they require the cylinder to be bored to 70mm for proper fit.

Q: Can I use these in other Ski-Doo models? A: These are specifically designed for the 780 Formula Mach Z; verify compatibility with your engine serial number.

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