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|Pad Shims Included:||No|
|Rocker Arm Body Style:||Standard|
|Rocker Arm Finish:||Natural|
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Q:is there a difference in rockers for exhaust and intake
A:With reference to your question, Sealed Power Rocker Arm Assembly -Part No. R-870, Rocker Arms are typically in between the pushrod and the intake and exhaust valves. They allow the pushrods to push up on the rocker arms and therefore push down on the valves. However, in Over Head Cam applications the Cam will ride directly on the Rocker Arm. The rockers in the firing order of the motor using the Exhaust Opening, Intake Closing method (use EOIC as a shorthand memory aid). This method ensures that the lifter of the valve you're adjusting is on the basecircle of the cam when you set the lash. To begin, put all the rockers in place and tighten the nuts or Poly-Loks enough that the arms will open and close the valves as the motor is being turned over. The piston moves downward as the intake valve opens to allow fresh air and fuel into the cylinder. Somewhere around Bottom Dead Center