Todays date is 7/17/2024

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Valve Lift From Rocker Ratio Calculator

Lift Changes with Rocker Arm Ratio Variations

Enter the required information into the white boxes and click results!



Rocker Arm Ratios....insert them as 1.5, 1.6 etc.  

Insert the valve lift as a decimal, for ex.  .480 

Current Rocker Arm Ratio:  

Valve lift for the lobe affected:

New Rocker Arm Ratio:

Please Input The Current Rocker Ratio

The lift of the camshaft after the rocker arm change will be: