S&S Cycle

Increased filter area, combined with a radiused inlet and unique S&S stinger allow smoother, faster airflow for more power. Kit includes a backplate, filter element, top cover, hardware, and...

Type: 550C Rear; Timing Open: Intake 3.1º/Exhaust 59.4º; Timing Closed: Intake 31.1º/Exhaust 38.4º; Duration at 0.053: Intake 214.2º/Exhaust 277.8º; Valve Lift : Intake 0.550"/Exhaust 0.550"; Lift at...

Stronger material with a 14% increase in strength over stockStronger material with a 14% increase in strength over stock9/16 in. 12 point head with integral washer200,000 psi Ultimate Tensile...

S&S Cycle 2017 M8 Models Oil Pump O-Ring Kit2017 M8 Models Oil Pump O-Ring Kit

Cam cover gasket for 2017 and later M8 motorsCam cover gasket for 2017 and later M8 motorsReplaces OEM 25700370This Part Fits:YearMakeModelSubmodel2017-2019Harley-DavidsonFLHTCU Electra Glide Ultra...

Type: 475C Rear; Timing Open: Intake 2.2º/Exhaust 52.2º; Timing Closed: Intake 31.2º/Exhaust 20.2º; Duration at 0.053: Intake 213.5º/Exhaust 252.5º; Valve Lift : Intake 0.475"/Exhaust 0.475"; Lift at...

The 540C cam was designed to add even more stump pulling torque to your big bore M8, for those that keep the revs below 6000 rpm.540 cam powerband further enhances massive torque output of our...

S&S Cycle 2017+ M8 Models Cylinder Stud Kit - 8 Pack2017++M8 Models Cylinder Stud Kit8 Pack

S&S Cycle 2017+ M8 Models Heavy Duty Stud Kit For Rocker ArmsInstall studs and safely re-torque nutsExtend the life of your cylinder headsPrevent damage to Rocker Arm TowersBlack Oxide Finish12 pt...

The factory oil control valve on all oil cooled M8 engines regulates the amount of oil flowing to the oil cooler/heads. The stock assembly includes a check ball retainer that is formed steel. Over...

Stylish Black pushrod tubes enhance the look of your engine. Great match for the Black engine covers offered on some new HD models. Pushrod Tubes only. Requires separate opurchase of keepers.

S&S engineers designed stronger, more durable components that will help you get the most out of your M8 and increase the longevity of your valvetrain components on cams with greater than .550" lift...