Which is the correct heater hose clamp for a 1968 04A Camaro. Is it the corbin clamp or a tower clamp?

Murph

The upper and lower radiator hoses used the same tower clamps from 1967-1969. Heater hose clamps for 1967 and mid-1968 cars where the spring type and went to tower style for mid 1968 to 1969. Not sure of the exact date of the change in mid year on the heater hose clamps. graemlins/beers.gif

Dave, Would the heater hose to heater core inlet and outlet on a 69 big block A/C car be tower clamps, too?

From everything I've read Yes. Although I did use the spring type at the heater box on my 69 BB
non air. They just seem to fit better, not much heater core nipple protruding thru the heater box.

Well, since mine are already in, and it would take a real contortionist to change them, I guess my spring clamps are staying!!