So I bought a 06 660 for a deal since I saw a head gasket issue. I just replaced the gasket along with the rest of the seals associated with it. Did a drain and flush on the radiator and changed the oil. Well my issue is first the was a bunch of white smoke coming from where the header means the heads. I figured it was just burning off something I spilled but it kept rolling. Then as it idled I went to check the oil and there was some mean blow by. Am I to assume I need to change the piston and rings now? And any idea with the white smoke????