Quote:
Originally Posted by FrugalNinja250
You'll want to put an OEM piston back in so that it matches the other one. If you get another brand you should replace them in pairs. It looks like that cylinder went lean, melting a hole in the piston and causing excessive thermal expansion, hence the scuffing of the piston walls. If you replace the rings you have to hone the cylinder, otherwise the rings won't seat properly and you'll be using lots of oil.
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Okay, I should have clarified that a bit. The options are to replace and hone just the one cylinder/piston/rings with OEM, or to replace and hone both of them (possibly with aftermarket.) Which is basically exactly what you said.
Main question is, is it worth replacing the piston that still works fine and shows 170psi?