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From the deep dark recesses of what I have left of a memory it seems Ace Mallot uses radial bearings there. I *think* The Kid did that on his Spot.
Available from McMaster-Carr.
Yes he does, he uses INA thrust bearings. They also have the thin races that go with them. I’ll look for those part numbers when I get out to the shop. If I do it that way I like to true up the ends of the rockers which is time consuming for my equipment and overkill for a street engine. It is the ‘right’ way to do it though. When I was on a funny car team I talked to the engine builder at Walt Austin Racing . they use spring loaded rockers on their alcohol engines. I was surprised at the light springs so I questioned that and he said yes it would make more power if they were shimmed solid but they already had enough so they were after quick serviceability.
That’s what I was going to try next time if I ever do it again, expanding mandrel. Got a link to the ones Amazon has?
These seem to be a cheap to medium price for what they are and with positive reviews. I can't personally vouch for the quality yet. https://www.amazon.com/Precision-Expanding-Mandrel-Mandres-Sleeves/dp/B071D1Q3NJ/ref=sr_1_4?dchild=1&keywords=expanding+mandrel&qid=1632075946&sr=8-4[/quoteI'm cheap. If it was me I would just machine a bar to give a very neat sliding fit through the rocker and a very slow taper out near the chuck. Slide the rocker on and twist while pushing it up the taper. Will hold fine if you only take light cuts at medium revs.
These seem to be a cheap to medium price for what they are and with positive reviews. I can't personally vouch for the quality yet. https://www.amazon.com/Precision-Expanding-Mandrel-Mandres-Sleeves/dp/B071D1Q3NJ/ref=sr_1_4?dchild=1&keywords=expanding+mandrel&qid=1632075946&sr=8-4
If one did fail those little rollers will make a mess so check the specs on the bearings if you do it.