Piston Set 3-9/16" Bore Flat Top Sportster

[S&S Cycle 920-0070 Piston Set 3-9/16 Bore Flat Top Sportster Engine Parts Proto]
■Product Description The 1250cc conversion pistons for HD Sportster models increase the displacement of 883cc and 1200cc engines to 1250cc with a compression ratio of 10.3:1. They can also be used with normal 1200cc cylinder heads, and S&S recommends their CNC ported heads. Genuine 1200cc cylinders and 1986-2003 883cc cylinders are compatible with 3-9/16 inch bore 1250cc pistons. They cannot be used with 2004-16 883cc cylinders. A cylinder and piston kit is also available. ■Compatible Models Harley Davidson / Sportster Family (1986-2021) ■Specifications Type: Flat top Material: Forged aluminum Accessories: Piston pin, piston rings ■Notes *Images are for illustration purposes only. They may include products of different sizes or colors. Product design and specifications are subject to change without notice. Thank you for your understanding.