The piston had no stamping on it. The bore is out of spec by .0095” anyway. I will have the machine shop take corrective action. Another thing is that my connecting rod has two nuts (that look different) instead of the two bolts like I’ve seen online. The crank is still within spec by .0005” inches so I won’t have it machined, makes me think it’s a crankshaft that the engine wasn’t born with. The two nut thing bothers me though. I attached a pic.
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