Reading a post on TC concerning heater hose size and checking my two cars, I'm in a quandary.
I have a 67 327 Elky with factory air and a 67 396 SS without factory air. Elky: 5/8" heater hose from intake to bottom bung on heater box 3/4" heater hose from water pump to top bung on heater box SS396: 5/8" heater hose from water pump to bottom bung on heater box 3/4" heater hose from intake to top bung on heater box I've had the 67 SS running this way for any number of years but I just got the Elky last fall and haven't replaced hoses yet. It seems the hose sizes and locations are just the opposite between the two cars. Does the A/C make a difference or is that one's a small block and one's a big block?
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