S&S Cycle 84-99 BT w/ Stock Heads 88in 3 5/8in Big Bore Cylinder & Piston Kit - Wrinkle Black - 91-7502

Installing this 3-5/8" big bore kit will increase the displacement of stock 80" HD® Evolution® big twin engines to 88" using the stock 4-1/4" flywheels. The kit includes S&S 3-5/8" bore...

S&S Cycle Wave 1.600in x 2in x .375in S&S Breather Reed Valve Spring

S&S Cycle 91-07 XL Air Cleaner Stock CV/Delphi EFI Backplate Assembly

S&S Cycle 99+ BT 3-7/8in +.020in FD Packaged .927in WP HSF Piston Set

S&S Cycle w/ Flat Washer 5/16-18 x 1in SHCS Zinc Screw ASTM A574-92A