238809 Wiseco Piston Kit Buell S1 S3T 10 1 010

Give your tube-frame Buell the performance it deserves with this Wiseco forged piston kit, specifically designed for 1998–2003 S1 White Lightning and S3/S3T Thunderbolt models. These domed pistons are engineered to deliver a 10:1 compression ratio using the stock 3.812-inch stroke, providing a noticeable increase in power and efficiency. They are also compatible with 1996–1997 models if you have upgraded to the 1998-style Thunderstorm cylinder heads. Wiseco’s forged construction offers a significant strength advantage over stock components, making them perfect for the high-revving nature of a Buell engine. Sold as a pair, each kit includes two forged pistons, Hastings rings, wrist pins, and clips, giving you everything needed to refresh your top end with race-proven technology.