I just had my Walker radiator gone through by an excellent radiator shop and because it was built in 1986 I wonder if I shouldn't purchase a new one with a more modern core. Mine is a 5 core and has always worked fine with a high horsepower engine. New radiators from walker run $1000 for the A/C one so I thought I would save some money by reconditioning this one. The radiator shop told me this one will work fine but I would like some opinions from the members. Thanks!