ROCKER ARM GUARDIAN KT M8

Rocker Arm Stud Kit Replace broken or worn OEM pieces with stronger, more durable S&S performance parts Hardened and surface ground for ultimate precision and durability Rocker Arm Shafts Direct replacement for stock parts Prevent damage to Rocker Arm Towers Extend the life of your cylinder heads Install studs and safely re-torque nuts Rocker Arm shafts, Rocker Arm Stud Kit, Head Bolt Kit and Performance Roller Rocker Arms are included in this kit Black Oxide Finish Head Bolt Kit Heat Treated 8640 Steel 12 pt Nuts 200,000 psi ultimate tensile strength 14% increases in strength over stock 9/16" 12-point head with integral washer Formed threads Durable Black Oxide Coating Cold Formed Head Forged from 8620 steel for greater strength Forged Roller Rocker Arms Designed using Finite Element Analysis (FEA) Rollers eliminate thrusting on valves for decreased wear on the valve train Stronger material than stock Head bolts 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 Reusable