Includes three sets of shims of different thickness.Use to set “lifter preload” when fitting a new cam.
Shim assortment: 0.015,0.030 & 0.045″
Ideal preload is .020 – .060
ALWAYS CHECK LIFTER PRELOAD WHEN REPLACING A CAMSHAFT, HEADS OR BLOCK.
To set lifter preload correctly pleasefollow this how-to guide
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