Northeast DIRT Modified Radiators All Aluminum, Race ready Big Block capacity Radiators with 1/4 NPT fitting and fan shroud brackets, NO cap. Aluminum Brazed Core. 2 Rows 1.5" Tubes, 11 fins per inch. Direct Drop - in replacement for all Bicknell, PMC, TEO, Troyer and similar Modified Chassis. Complete with Fan shroud mounting tabs. Lightweight 22 lbs. Extremely efficient and easy to clean. Proven successful by top Modified teams. Cross Flow Unit, Top Left, Bottom Right Radiator23" x 23" x 3.5"