There are extra stress issues that arise when big lift cams and high-pressure valve springs are installed.   It is essential that more durable components are used together to help you get the most out of your M8. Rocket Cams 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:

• Forged from 8620 steel for greater strength
• Rollers eliminate thrusting on valves for decreased wear on the valve train
• Rocker geometry (1.640 ratio) 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)
• Capable of .650" max Valve Lift
• A must have for cams with .550" or greater lift!