Personally, i would search for a replacement to get rid of the 0331 head if i already had it off. But as long as this one is in good shape and you treat it right (keep it from overheating) it should perform just as well. I just like the confidence of not worrying about that stuff. But if you do want to keep the head have a machine shop magnaflux it to check for cracks. Its a test that identifies cracks to small to see normally and is not expensive.
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