318 Non-Magnum [Valvetrain question]

If the head and/or block has been milled, shims need to be used to restore stock rocker arm geometry. Some might say that installing a shorter push rod will take care of the problem. The issue is that there are oil grooves in the rocker shaft that will not engage the rocker arm properly thus creating an oiling problem for the rocker arm. If shims are a no-no, then a shorter installed valve spring height and a shorter pushrod will be required.

Torque value on the bolt should be 30 ft/lbs.