Radiator & parts. Radiator cap(If Any). 5.5L V8 5461cc 333ci 2007. Automatic AT & Manual MT. Wholesales and Customize. All aluminum radiators often add 24MM-34MM thickness on basis of OE radiators,the design of double rows makes the the radiators higher and fast cooling,(Becasue the normal working temperature is not lower than 85 ℃,usually in 85℃-90℃,it can’t be lower than the normal working temperature. ).