I'm having trouble finding which nipples (3/4" or 5/8", long or short) to use that go in the intake and water pump used with the heater hoses.
I think I found that the intake is the 3/4" long one but not sure.
I have a 69 camaro, 350 with A/C.
Can you help on which are correct?

I think I have found the long fitting goes on the water pump and the short goes on the intake.

The intake gets the 5/8" fitting, and that hose goes to the bottom nipple at the heater core. The water pump gets the 3/4" fitting, and that hose goes to the top nipple at the heater core. Always. :thumbsup:

thanks for your help JohnZ