Crank and camshaft, timing and rear main seal covers, 706 cathedral port heads and valve covers, oil pan, valley plate cover, OEM headlights, taillights front blinkers assemblies, basically everything you need to build a 2002 to 2006 4.8/5.3/6.0 block minus the block with light assemblies came off a 2006 Chevrolet Silverado 1500 LT 4wd crew cab