Can someone give me the diameter of the heater hoses on this truck? I forgot to measure them before putting everything back together and the truck is 40 miles away.

I need to make the contraption HRL described to attach a garden hose to the system to pressurize the cooling system without the radiator.

1951 216 w 1941 radiator.

I know the upper hose is smaller diameter than the lower hose.

1950 Chevrolet 3100 (Ol' Roy)

1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)