I recently had the heater box back out of my '66 fastback. For some reason, I had an assembly manual out, and I noticed that in the drawing of the heater core, the hoses were clamped to the heater core with spring clamps instead of the Wittek tower clamps. Which would my car have come with originally, the Wittek tower clamps or the spring clamps pictured below?
I've never had a car with the original heater core, so I wasn't sure what was original, and I definitely didn't want to rely on what was in the assembly manual.
This is on a Dearborn-built '66, built Dec. 8th, 1965.
The spring clamps: