S&S Top End Guardian Kit

Rocker Arm shafts, Rocker Arm Stud Kit, Head Bolt Kit and Performance Roller Rocker Arms are included in this kit

Rocker Arm Shafts

Replace broken or worn OEM pieces with stronger, more durable S&S performance parts

Direct replacement for stock parts

Hardened and surface ground for ultimate precision and durability

Rocker Arm Stud Kit

Extend the life of your cylinder heads

Prevent damage to Rocker Arm Towers

Install studs and safely re-torque nuts

Black Oxide Finish

12 pt Nuts

Head Bolt Kit

Heat Treated 8640 Steel

200,000 psi Ultimate Tensile Strength

14% increases in strength over stock

Stronger material than stock Head bolts

Durable Black Oxide Coating

9/16" 12 point head with integral washer

Formed threads

Cold Formed Head

Reusable

Forged Roller Rocker Arms

Forged from 8620 steel for greater strength

Designed using Finite Element Analysis (FEA)

Rollers eliminate thrusting on valves for decreased wear on the valve train

Rocker geometry is better suited to high lift cams

Larger surface area on the thrust surfaces reduces wear on the heads

Bushings are 50% longer than stock, increasing time between rebuilds

Compatible with stock or S&S CNC heads

Oil is sprayed directly on the valve springs, reducing potential for breaking a valve due to over-heating (stock rockers tend to oil the rocker boxes, not the valves)

1.640 Ratio

Capable of .650" max Valve Lift

Serviceable and rebuildable for generations of durabilty

A must have for cams with .550" or greater lift