Cant recall what size outer diameter our hoses are when clamped down but there is this size:
OBX Spring Loaded T-Bolt Clamp 1.5" Hose Reducer SUS300 | eBay
And the next size up which is 1 3/4" to 2 1/8" One of those should be the correct size. So when your hoses get softer with age, you never have to worry about them leaking as the spring will still provide plenty of tension on the hoses. Cant get much better of a radiator hose clamp than these spring loaded ones.
OBX Spring Loaded T-Bolt Clamp 1.5" Hose Reducer SUS300 | eBay
And the next size up which is 1 3/4" to 2 1/8" One of those should be the correct size. So when your hoses get softer with age, you never have to worry about them leaking as the spring will still provide plenty of tension on the hoses. Cant get much better of a radiator hose clamp than these spring loaded ones.