Register or Log In To remove these advertisements. What is the correct way to route heater hoses on a SBC? Currently I have the feed coming off of the water pump and the return goes to the radiator. Heater is not getting hot, just lukewarm. Should it be fed off of the intake? Also, is the bigger hose return or feed and does it matter? Originally Posted by fast72beeper.
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Asked by tcmeyers Jan 29, at I have a new to me Chevy C10 pickup that seems to be cobbled together. The heater core just sprung a leak, and in disassembly I discovered that the heat control lever Bowden cable doesn't connect to anything, there is no diverter flap or heater control valve. It would be easiest for me to add a heater control valve that just limits or shuts off the coolant going through the heater core. I'm unsure if this is safe for the engine - it occurred to me that the heater core not having a valve might be an essential part of the coolant bypass.