At Z1 Motorsports we use Wiseco pistons exclusively in our performance rebuilds due to their high level of quality control and their world renowned excellence as a performance piston manufacturer. 

These piston sets come complete with rings, wristpins, locks, and specification sheets.

These pistons come in a standard 9.0 : 1 Compresion Ratio.  11.0 : 1 compression ratio pistons are available on a special order basis at additional cost.

Bore sizes include:

• (95.5 mm stock bore)
• (96.0 mm 0.020" over)

Wiseco Piston Inc. is a World Class manufacturer of hi-performance, forged pistons for the snowmobile, motorcycle, ATV, personal watercraft, outboard marine and automotive markets. Wiseco has emerged as a world leader in the manufacturing of the recreational and racing industries by engineering, testing and manufacturing the finest aftermarket piston available today!

*Custom size pistons carry a 4-6 weeks build time and CANNOT be canceled, returned, or refunded. If you would like a custom compression ratio please contact our sales team via email ([email protected]) or give us a call (770) 838-7777. 

Wiseco Armor Plating

In order to provide the best quality piston Z1 has opted to include Wiseco's ArmorPlating and ArmorGlide coating on all shelf stock pistons FREE OF CHARGE. This is not a standard service! Most pistons and rebuild kits on the market choose a cheaper raw uncoated piston (pictured below) to save on kit cost.

Wiseco's ArmorPlating is a proprietary surface coating used primarily for piston ring blow-by reduction, friction reduction, and detonation resistance. The reduced rotational friction offered by the ArmorPlating is a real benefit in the piston pin bore. The blow-by reduction comes as a result of a better “fit” between the rings and the ring grooves. It significantly improves the lower edge sealing of the top ring groove, maintaining a very low amount of blow-by for a long time, compared to an uncoated groove. As an added benefit, it also eliminates microwelding of the top ring groove. Read more about Wiseco's coating HERE.

Custom and special order pistons do not include this coating standard. They are RAW and recieve no special coatings on the skirt or piston surface. If this is desired, please contact us prior to ordering.