BROTHERS All-Aluminum Radiators are manufactured to a high standard of quality and workmanship. Each radiator is constructed using aircraft-quality aluminum with 100% welded seams with a billet fill neck (cap included). NO EPOXY! Cooling rows are spaced 3/8" apart with appoximately 14-16 cooling fins per inch. Automatic trans cooler standard with all applications and brass petcock included. Radiators come with a lifetime limited warranty and are made to install with little or no modifications depending on your specific application and setup. Chevy only.