Actually Joe a black motor isnt hard to keep clean at all if a clear coat is applied, this isnt my first black motor and if you look close at. Twin cam or evo Harley motor with 45k on the odometer they still look damn good...... Reason base coat clear coat. Same was done here. As far as leaks go, well being a Ford I am sure it will leak eventually but I am taking dvery precaision to ensure that doesnt happen