S&S Forged Roller Rocker Arms for M8 Models, 1.640:1 ratio
Big lift cams can open up the high rpm potential of the M8 powerplant, but they can also cause their own issues due to the extra stresses and stock valvetrain geometry. Excessive valve thrust and valvetrain wear drove S&S engineers to design stronger, more durable components that will help you get the most out of your M8. S&S Forged Roller Rocker arms for M8 models are stronger, more durable and easier on the rest of your valvetrain, and are essential for increasing the longevity of your valvetrain components on cams with greater than .550″ lift.
FEATURES & BENEFITS
- 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
- Bushings are 50% longer than stock, increasing time between rebuilds
- Larger surface area on the thrust surfaces reduces wear on the 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)
- Compatible with stock or S&S CNC heads
- 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!
T-Man Performance Breather Valves for M8
This kit allows pressure to release from the crankcase into the air intake. It has double o-ring seals and they are internally gasketed. They can also be rebuilt with new reeds if they ever need to be.
Cometic Rocker Box Gasket Kit
- Premium materials used for specific applications to provide a long, service free life
- Kits include all gaskets, seals, O-rings and quality bolt seals needed when servicing both rocker boxes
- Made in the U.S.A.
- If you are removing the rocker boxes and then re-assembling then you will need this complete gasket kit.
Cometic Top End Gasket Kit 0934-5942
- Viton gaskets feature a stainless steel core with a .001″-thick coating of Viton rubber on both sides.
- Made in the U.S.A.
- These gaskets are required when installing this kit.
S&S Rocker Arm Shaft Set for Harley-Davidson Models Including M8 Models
• Set of 4
• The perfect replacement for OEM rocker shafts
• Made in the U.S.A