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Reply to "Ford Motorsport aluminum Roller Rocker arms"

quote:
Originally posted by 73 l:
question if you were running a .50 lift @1.73 then what lift would these 1.80 ratios make?


@ .500" valve lift with 1.73:1 ratio, you have a cam lobe lift of .2890".

If you switched to 1.80:1 ratio, you would have a .520" valve lift.
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