Most of the V-8 swaps performed aren't going to use the stock radiator. You are going to need to upgrade to a radiator that has more cooling capacity. For example, the Corvette aluminum radiator that JTR offers is a very popular radiator for the 350ci S-10 swaps. Your core support might take some modifications to make the new radiator fit. You will want to move the radiator as close to the front of the truck as possible without interfering with the grille and headlights. There are two options for cooling fans. If you have enough room for an engine-driven fan, you might want to consider using one. Otherwise, you can go with at least one low-profile electric fan, but if you can fit two, it is highly recommended. The area between the radiator and fan is where the engine definitely seems to fit the tightest so most people prefer to move their engine rearwards. The running temperature of the engine is one of the major concerns of performing an engine swap, so this step is crucial.