S&S CYCLE Forged 74" Piston Kit — 3-31/32" stroke, 3.4375" bore – 36-84 Big Twin, 79-83 Touring, 82-84 FXR, 84 Police

Forged 74" piston kit engineered for stock big twin motors.

• Forged pistons for superior strength 🔧
• Piston kits include set of pistons, rings, wristpins, and clips
• Wrist pin deck height 1.436"
• Made in the U.S.A. 🇺🇸
• Requires the use of connecting rods with a rod length of 7.440" (standard length OEM #24281-74A); use of earlier connecting rod with rod length of 7.470" (OEM #24281-41A) will result in a slight increase in the compression ratio of about one-half point, and may also result in clearance problems — check all piston to cylinder head clearances carefully when using early style rods.