Fit to : 1949-1954 Pontiac Catalina / Chieftan / Star Chief / Silver Streak 3.9L(239ci) L6, 4.1L(249ci) L8 or a 4.4L(268ci) L8 engine#CC49B-PO Core Size(H/W/):21.97"*21.65 '' Overall Size(H/W/): 27.9"*24.2" Inlet Diameter : 1.75'' Outlet Diameter: 1.75'' ROW NO: 3Row Warranty: 1 Year 100% TIG welded.
