37 hours on lycon 10:1 pistons and honed jugs with same time. 3 of the jugs are completely gone through valves ect and honed. The other jug is totally brand new less than 2 hours on it. Bottom end went out on my O-320 so I zero timed my engine and went back to all stc’d parts. $500 a piece *these came off a wide deck O-320 A2B
