The S&S Top End Guardian Kit has proven performance parts to eliminate weak points in your M8 top end. Offering a direct replacement for OEM units this kit includes everything you need: rocker arm shafts, rocker arm stud kit, head bolt kit and roller rocker arms.
- Rocker arm shafts are more durable than stock
- Rocker arm stud kit extends the life of your cylinder heads by preventing damage to the rocker arm towers
- Head bolt kit is made of 8640 heat treated steel with 200,000 psi ultimate tensile strength
- Roller rocker arms help relieve additional stress caused by high lift camshafts running at high rpm.
This item fits the following models:
Harley Davidson FLHR Road King 2017 - 2021
Harley Davidson FLHRC Road King Classic 2017 - 2021
Harley Davidson FLRT Freewheeler 2017 - 2022
Harley Davidson FLTRU Road Glide Ultra 2017 - 2019
Harley Davidson FXDR 114 2019 - 2020