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 in. lift.This Part...

Replace worn-out or broken stock rocker arm shafts with these proven S&S Performance rocker arm shafts tht fits 1986-later XL models, 1984-2017 big twins and S&S V-Series, SB-Series and T-Series engines

Thousands of hours of engine testing have proved the forged rocker arm kit to be superior to other non-roller rocker arms. An economical solution for stock rebuilds and mild performance upgrades.

The S&S forged steel roller rocker arms were designed for superior strength and to eliminate the failure-prone stress areas found in some other rockers.

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.This Part Fits:YearMakeModelSubmodel2018-2021Harley-DavidsonFLFBS Fat Boy...

S&S Cycle 2017+ M8 Models Heavy Duty Stud Kit For Rocker ArmsThis Part Fits:YearMakeModelSubmodel2017-2021Harley-DavidsonFLHR Road KingBase2017-2019Harley-DavidsonFLHRC Road King ClassicBase2017-2021Harley-DavidsonFLHRXS Road King...

Rocker box base gasket for S&S Super Stock heads with stock bolt pattern for 1999-2017 Big Twin and S&S T-Series engines