2 Namura .020 Over Hi Compression Piston Kits for Yamaha Banshee 350 64.5mm

2 Namura .020 Over Hi Compression Piston Kits for Yamaha Banshee 350

This set of two piston kits is designed for Yamaha Banshee 350 engines, featuring a .020 over bore of 64.5mm and hi compression design to increase power output.

Overview

The Namura .020 Over Hi Compression Piston Kits are aftermarket replacement pistons for Yamaha Banshee 350 ATVs. Each kit includes a piston, rings, wrist pin, and circlips, machined to a 64.5mm bore for .020 over applications. These high compression pistons are ideal for builders seeking enhanced throttle response and top-end power.

Built For Performance

• Hi compression dome design increases cylinder pressure for more power
• .020 overbore size allows use after minor cylinder wear or machining
• Precision-cast from durable aluminum alloy
• Includes complete set of rings, pin, and clips for easy installation
• Manufactured by Namura, a trusted name in aftermarket pistons

Fits These Machines

• for Yamaha Banshee 350

On-The-Job Use

• Rebuilding Yamaha Banshee 350 engines for trail riding and dune riding
• Performance upgrades for drag racing or motocross
• Replacing worn pistons due to age or damage
• Building a high-compression engine for increased horsepower

Specs At A Glance

Good To Know

Q: Does this piston kit require any special cylinder preparation? A: The .020 over pistons require the cylinder bore to be machined to 64.5mm by a qualified shop before installation.

Q: What compression ratio do these hi compression pistons provide? A: The exact compression ratio depends on cylinder head volume and deck height; typical aftermarket hi compression pistons for the Banshee raise compression to around 7.5:1 or higher.

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