Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Pulled my motor down, pistons say H-60-A, what are they?
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Old 07-11-2010, 06:18 PM
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The H-60-A is just a forging identifier, it is likely Arias, like all piston makers, makes several different pistons from this same forging blank depending on how the dome size is cut, valve relief size, ring groove package, etc. It will be impossible to identify by just that #.

Arias will be able to tell you what it is if you completely measure all(or just several) features of the piston dimensionally and call them.
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