Wiseco K1683 Forged Piston Kit - 3.508" Bore, 10:1 Compression Ratio, Reverse Dome Design | High-Performance Engine Upgrade for Racing & Off-Road Vehicles

Dedicated forgings are used for superior strength to weight ratio utilizing aerospace alloy with a dome designed for improved flame travel and detailed skirt shape and profiles for stability and smooth operation in the cylinder bore. Each Wiseco piston is designed with the proper installed clearance to produce the most power, least wear, and best seal at running temperature, for each application. Compared to cast pistons, forgings are tougher and more durable, and will stand up to the abuse that high performance motorsport applications require. 10:1 compression ratio reverse dome piston. 2008-2013 must use 1200 cubic capacity Sportster cylinders to install these pistons/kits. No cylinder head modification required. ArmorGlide Skirt coated. Includes: Forged pistons, rings, circlips, chrome piston pins. Total displacement: 1207 cubic capacity; cylinder bore: 3.508 inch; stroke: 3.812 inch.