The S&S Top End Guardian Kit includes everything you need to eliminate the weak points in your M8 top end.
* 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
* Cold rolled threads & formed washer make these head bolts durable & reusable
* Roller rocker arms help relieve additional stress caused by high lift camshafts running at high rpm!
