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Re: Restoring Rusty
The pitting on the sealing face of the exhaust valves is typically what you see from higher mileage use. You will have some leakage if not addressed.
I would send the heads out to have the seats recut and the valves ground(valve job).
You should not need to buy any valves unless you have one with pits too deep to clean up, stem wear under spec, or bent/out of round.
You also need to mic the guide boss OD to see what size seals you need. The ones you showed a picture of may work as they are designed to fit a size range.
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