All original has 402 big block. I have had truck for 8yr,s and still enjoy it. Truck runs great still rebs up In the mornings when you start it (manual choke). I recently bought the original type steel rims and new and better shape hubcaps than the ones that came with it (the original ones were bang up , still have them and will go with the truck when sold) Rims and hubcaps painted by Wildman Customs here in Hockley,Tx
