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I bought mine from an Ebay store in Arizona. He told me they were made in Australia and he finished them. I ran them for a year before I replace them. I install push rod that were to short and they wore the valve guides out. The machine shop (they specialize in aluminum heads) could not find replacement valve guides. He ordered three different valve guides but they would not fit. So I sold the heads for $200 and bought Keith Craft Brodix heads. I made 80 rwhp more but I also replaced the intake and TB.
After saving a few buck up front my advice is to buy a set of heads build the way you want from a reputable shop like Keith Craft.
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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