Help with Valvesprings and valve float. Noob

gzig5 said

Sure, but they were supported the full width of the rocker, right? take the bearing out of the OPs rockers and replace with same width bronze and you get maybe 1/2 to 1/3 the surface area. No way you will maintain an oil film with that small of an area with any kind of spring pressure. If you could, they would be doing that on race engines. Bearing width = friction and friction robs HP.

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I'm getting lost here. If you just replace the bearings with bushings, you still have the same bearing area. Doesn't matter if it's bronze or aluminum. Think about the exhaust rocker. It has the same spring loads as the intake (talking W2-5 stuff here since I'm using my example) yet the exhausts show no more wear than the intakes with ~ 65% of the bearing area of the intake rocker.

My point is there is plenty of bearing area there. Push some bushings in where the bearings were and go. It will be fine.