Ford 1951 F series Heater Cores 27105 E8801 (14491 30001) It is intended to fit

It is intended to fit within the shell  and because the confederate was the first year of the grill shell

FORD F-350 1997

Its also non ferrous which means no rust which is probably why you need a new set anyway

Reference Part Nos 3115648

one-off or hard to find copper and brass heater core for a Harrison H-82 heater core your 1938 or1939 Packard you are not alone and you may be in luck

Ford 1951 F series Heater Cores 27105 E8801 (14491 30001) It is intended to fitDescribed to us as a 1951 Ford F1 Heater core it may fit other F series in the period. The OE core measures 8. 75" tall x 6. 75" wide x 2. 5" deep We make our own copper cores and fabricate our own tanks so, naturally, we get asked to build custom heater cores or "small radiators." Present Lead times. Made in the USA.