S&S rocker arm kit

• Forged from 8620 steel, heat-treated then shot-peened for additional strength and durability
• Rocker arms have .75" long bushings instead of the .50" long bushings found on most other rocker arms
• Feature a modified lubrication system with unrestricted roller oiling
• Must be used with adjustable pushrods; sold separately
• For ease of adjustment on 91-03 XL and Buell models, use pushrod tube covers DS-193829
• Recommended that new rocker shafts be used when installing roller rocker arms; available separately
• Made in the U.S.A.

Add on-

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 (EU: 1378,95 MPa) ultimate tensile strength
• 14% increases in strength over stock
• Stronger material than stock Head bolts
• Durable Black Oxide Coating
• 9/16" (EU: 1,43 cm) 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" (EU: 1,65 cm) max Valve Lift
• Serviceable and rebuildable for generations of durabilty
• A must have for cams with .550" (EU: 1,40 cm) or greater lift