Not Ranked
If they have the original valve seat in them you will have to replace them for use with today's non leaded gas. A local shop quoted me $600 a few years back to do these to a pair of 428 heads. Spend a little more and you can buy aluminum heads. It's a no brainer.
Dwight
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''Life's tough.....it's even tougher if you're stupid.'' ~ John Wayne
"Happiness Is A Belt-Fed Weapon"
life's goal should be; "to be smarter than inanimate objects"
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