[7640.anthony]

is it ok to run heater core bypass valve on a 454 big block,i want to put it inline with the 5/8 inlet hose coming out of the intake manifold and going into the heater core on a 71 chevelle ,so theres no circulation going thru my heater core , so my cab is a little cooler in the summer,will this create any unnessacary pressure in cooling system???

 

[Schurkey]

As long as you have the OEM-style bypass hose from intake manifold to water pump, you could install an in-line water valve without problem.

Why not fix the air doors in the dash/heater box instead?

 

[Philip]

As long as you have the OEM-style bypass hose from intake manifold to water pump, you could install an in-line water valve without problem.

Why not fix the air doors in the dash/heater box instead?

I agree, fix the seal on the temp door. Coolant flowing through the heater core will keep it from developing leaks.

 

[7640.anthony]

seal on temp door is fine but still think cab would be cooler if there was no hot water in heater core my bb heats up my car and cab alot ,just doing what i can to cool it off a little when its 90 outside

 

[Philip]

a good test to see if the problem is with the heater having coolant running through it would be to disconnect it. There may be a lot of heat coming through the firewall and floors. When I added heat and noise barriers to the Nova it cooled it off by a noticeable amount. I only did the floors but soon will be adding it to the doors and roof.