Need advice on followers

[CrisSilberGrau]

Things probably have changed since our cars pile up mileage and age. Did the flat spotted follower damage the cam?

I think WPC or REM polishing would add some benefit of better oil film retention and thus less wear and heat. Not sure much of a difference it makes. I have REM polished the shafts that the follower sit on just to try some day. I think Partee Racing bought them...he hasn't asked for more so I don't think its a huge deal.

The problem is, at least with REM polishing, is the proportions of long shafts increases the cost significantly. I can get a ring and pinion gear set polished for half the price of a single cam.

Would any of these processes affect the cam lobe dimensions in any meaningful way?

[bigjae46]

Would any of these processes affect the cam lobe dimensions in any meaningful way?

REM polishing is a chemical polish so no. WPC apparently does not. These processes are micro-finishing so it enhances the surface.

A coating will decrease a clearance but it also acts as a sacrificial layer. I know a couple of people have used MicroBlue. In the past they recommended REM polishing and then performing the microblue treatment. I haven’t seen any long-term results from this process…would be interested to see some