These are in my opinion the best bang for the buck in a non stock rocker arm for the non hemi predator, Honda GX series or the clone OHV motors.

They will put up with the abuse of racing day after day and don't cost near as much as other options.

They typically DO NOT fit under stock valve covers so you either need to buy the CPE valve cover or a valve cover spacer

WARNING: I have had a customer tighten the rocker stud to much, the result was a cracked rocker stud boss. Do not over tighten them

Note: These rocker assemblies are "dry" you must pre oil them before putting the valve cover on or your chances of failure will dramatically increase. The only failures I've seen with these were self-induced (every time).