Quote:
Originally Posted by mortten
Question. Would a factory piston be stamped STD? I have 2 K301’s on the bench that I don’t believe have ever been messed with. Neither piston is stamped.
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Drop a telescoping gauge in the bore and measure, best way to tell, otherwise it is just a guess.
you can use a caliper also.
It will tell you if it is std or oversize.
Not all pistons are marked as manufactures vary.