5.3 4L60 Combo Built 5.3LS Stage 3 BTR Cam Gen 4 rods & pistons Ls7 litters Melling high pressure oil pump ARP Mains All new bearings throughout Low profile oil pan with oil cooler adapter Lst intake with 92mm throttle body 42lb injectors Alternator & power steering (new) LS3 water pump 243 heads MLS head gaskets.