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Actually I might be more concerned with the valve locks

Are those stamped locks or machined? If they are not machined I'd toss them

Also I would machine and put rockershaft stands on there before I'd use a shim. another



The locks are the ones supplied with the heads from Indy. I would say they are stamped, but I am not 100% positive.
Whats the failure mode with stamped locks?

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