2007 GM/Chev (HD) 8.1L GAS, Truck Delivery, Engine Assys, Fits to: Workhorse Custom Chassis W62, (Used) GM/Chev (HD), ENGINE ASSEMBLY- Family Number: 9GMXH08.1503, Displacement: 8.1L, Horsepower: 330-340, Serial Number: 52118J086, Part Number: 52G3D330A, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921, Horse Power 330-340, Serial# 52118J086, Casting# 52118J086 5B4MPG2G473421234