Thanks Doug
Your comments give me more confidence. I did take a magnet to the EPN valve . The magnet was attracted to the tip but not the rest of the valve. This magnet was able to lift the stock intake valve off the counter but not the exhaust. The exhaust valve does have a steel tip as is clear visually and with the magnet however, the magnet could not lift the ex valve off the counter which indicates stainless I guess.
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