Came in because major knocking in motor and blowing a bunch of smoke out of the exhaust. We found metal in the oil and crankshaft bearing damage. There was also bad damage to the pistons and cylinder walls.
We machined the engine .020 over, line honed the engine block, straightened the crankshaft then ground and polished it. To finish the motor off we balanced the entire rotating assembly to close to NASCAR specs. It’s runs smooth as silk and has great power!