Has anyone compared Mummert's 1.54 rocker assemblies to the 1.6 Harland Sharp roller-tip rocker arms? I would think that the difference in performance between 1.54 and 1.6 ratios would be negligible. What about quality? I'm looking at valve-spring seat pressure of 110 lbs. and approximately 280 open. Will my OEM adjusters/w lock nuts fit the Mummert rocker arms?

Call John ???


54 Victoria 312;  48 Ford Conv 302, 56 Bird 312
Forever Ford
Midland Park, NJ

I've been running the Harland and Sharp for several years now. No issues and I'm happy with them. No way I can say for sure how they compare with anything else. Quality is excellent though. Not sure if a comparison dyno test has been done. 

Tank you, Slumlord.

Mummert no longer offers rocker shafts/w slotted oil holes, stating there were some manufacturing issues.