Re: first A engine tear down
Why are the intake valves so recessed? Did someone use stock valves after boring for larger intake valves?
"A running engine" doesn't tell much about the condition. Maybe now would be a good time for a complete teardown. I would at least look very closely at the babbit for the mains and rods.
As far as the recessed intake valves, oversized intakes might fix that problem, rather than install valve seats.
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