This is a 2005 LLY Duramax diesel engine comes complete minus the ficm. The engine runs great zero issues. No blow by and no head gasket issues. I have videos of this truck running ect. Also have the injector balance rates. The injectors were replaced 30k miles ago and a fass installed on this truck. Really nice engine for the money ready to go back into another truck. Any questions please ask. I’m not afraid to get on a call ect. I will answer any and all questions!