Heater Hose

[dana60]

There are two coper pipes that come out of the heater and through the fire wall, one is smaller thane the other in diameter ( see picture ) . My question is, where does the smaller hose go to on the water pump? Is it the one closest  to the radiator or or the one closest to the distributorcap ? Thx

[HP_Cuda]

Does this help?

Large one is on top, smaller one is on bottom.

[anlauto]

On a big block it doesn't really matter....Just check the size of the nipples on the front of the engine...could be a chance you have two large ones on the engine.

[dana60]

I took the nipples off when I replaced the water pump and one is the smaller diameter nipple and one is bigger, just cant remember where the smaller one goes on the water pump? It is a 440 engine. Thx

[burdar]

http://mmcdetroit.com/ICCA/References/Engine_Compartment/image_44.html

http://mmcdetroit.com/ICCA/References/Engine_Compartment/image_73.html

http://mmcdetroit.com/ICCA/References/Engine_Compartment/image_74.html

It looks like the smaller diameter is closest to the distributor.