bbc roller rocker question

[JMac11]

Not sure on the brand, but this is not uncommon. The Rocker is bottoming out on the stud. three ways to fix. 1 Aftermarket Studs may not widen at bottom, 2 Clearance rockers for studs or 3 Check with Adjustable Push Rod and order correct push rod lengths. Make sure roller tip stays as close to centered during the lift cycle, if not you will wear out your guides.

Several things affect pushrod length in either direction, decking heads/block, tolerance of the camshaft, head or rockers. Simple fix, just takes time.....