Quote:
Originally Posted by 72c20customcamper
I’m changing them all out but it’s only happening to the exhaust rockers . Seems the builder ground down the hex head enough to clear low deck valve covers don’t know why I’ve got tall decks. My opinion is he heated them up to much taking the temper out and hardened them making it brittle.
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I think you are right:
They look brittle.
If he only ground the exhaust nuts, and it's only happening to the exhaust nuts, that seems like a pretty conclusive result to his unintentional statistically designed experiment.
K