It would be best just to buy a Pushrod length checker with some Light weight checker springs. And checking the rocker sweep on the valve stem. It requires the removal of two valve spings. This would eliminate you guessing on your Push rod length.
A forum community dedicated to Ford Mustang owners and enthusiasts. Come join the discussion about performance, builds, modifications, reviews, engine swaps, classifieds, troubleshooting, maintenance, and more!