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Don't forget to check the Backlash springs in the camshaft drive gears (follow all the videos in order). Lonzo posted this link some time ago. You should also make sure your valve chain adjustment spring isn't broken which could give you some clatter.

I already have everything apart and can confirm that those items were just fine. Bolting the cams in with no buckets or shims allows me to "rock" the cams up and down in their caps/saddles @ .007 in. at each end.


that is not to best news. I have thought about this particular repair several times when it has come up. I think that if I were to have to address this, I would line bore the cam bearings to just clean up and them build up the cam journals and grind them to the correct clearence. There is very little room in these heads to attempt to use an insert or bearing shell. Just my thoughts on the machine work.
one other thing to check is the excess clearence only top to bottom? or all of the way around? If it is directional, and top to bottom then the caps could be milled off and then line bored to correct size. probably the easiest fix if applicable.



I agree completely, I just think it would have been a better design to have replaceable bearings from the factory. A replacement head with bearings would be a good investment, too bad one isn't available.

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