14 liter Detroit engine. Came out of a 2006 freightliner Comes with clutch and ECM and head.The block has a crack in between number 5 and 6 cylinder but could be used as a core. There is a lot of new parts on the engine. A few injectors were new, injector cups, injector harness, air compressor to mention a few. Clutch is less than a year old.