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Never install anything right out of the box without checking condition. Piston-ring end gaps must be checked on every bore-that means every ring and every bore, without fail. A good rule of thumb is to never run gapless rings in the top compression ring groove because heat issues at the top ring make breakage probable, especially if you're turbocharging or supercharging. Rings grow with excessive heat and can break. With turbocharging, we want to go a pinch larger than the factory-recommended 0.010-0.020-inch. View Related Article
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