Fabricated Aluminum Radiator 24" x 19" x 3" Overall For SBC BBC Chevy GM overall size: 23 7/8''W x 18 3/8''H x3''D core size: 18 1/4 '' x 17 5/8'' x 2 1/4'' Inlet:1 1/2",Outlet: 1 3/4" 2 row radiator with 1" tubes 2-1/8" C-Channel Style Mounting Flanges (flanges are approximately 1/2" tall)