357 (350 - .40 Over) Build Questions Etc

[Mr Diesel]

I think the only thing that makes them high volume is a different impeller. Castings would remain the same.

Edit: Removed comments and link for electrical cut-off switch and put it into the correct thread.

[VileZambonie]

The stock water pump circulating the coolant is what you need. Let the cooling system do its job as designed. Until the thermostat opens you are circulating it through the bypass circuit. If you wanted to increase cooling capacity use the big block radiator. What would you gain with (high volume) ?

[Mike81K10]

Thanks VZ! Mr. Diesel, I think you are correct in that the only difference is the HV has a slightly larger or different impeller in it.

I am beginning to think I should have bought a complete engine fully dressed with all accessories. It would have been about the same price or perhaps less expensive. Buying a short block and completing it really costs.

[VileZambonie]

With the quality of things these days you're better off. Plus you can say built, not bought.

[JohnnyPopper]

Your Thermostat isn't going to open up any further...

Unless they make a HV unit 

Be my luck that someone does...

[Mike81K10]

I bought a:
Stant Superstat ® Premium Thermostat , 180 Degree
The description of the thermostat says:
Premium Superstat thermostat.
Uses high venturi for maximum cooling capacity during high temperature, high load oepration.
25% larger piston in diameter that delivers 1 1/2 the power of standard thermostats.
Stanless steel flange is burnished to a bright finish for stress relief and added corrosion resistance.
Thicker flange.
Fit type: Vehicle Specific

[JohnnyPopper]

I bought a:
Stant Superstat ® Premium Thermostat , 180 Degree
The description of the thermostat says:
Premium Superstat thermostat.
Uses high venturi for maximum cooling capacity during high temperature, high load oepration.
25% larger piston in diameter that delivers 1 1/2 the power of standard thermostats.
Stanless steel flange is burnished to a bright finish for stress relief and added corrosion resistance.
Thicker flange.
Fit type: Vehicle Specific

Curious

Wiki: "In inviscid fluid dynamics, an incompressible fluid's velocity must increase as it passes through a constriction in accord with the principle of mass continuity, while its static pressure must decrease in accord with the principle of conservation of mechanical energy (Bernoulli's principle). Thus, any gain in kinetic energy a fluid may attain by its increased velocity through a constriction is balanced by a drop in pressure".

 

[Shifty]

I bought a:
Stant Superstat ® Premium Thermostat , 180 Degree
The description of the thermostat says:
Premium Superstat thermostat.
Uses high venturi for maximum cooling capacity during high temperature, high load oepration.
25% larger piston in diameter that delivers 1 1/2 the power of standard thermostats.
Stanless steel flange is burnished to a bright finish for stress relief and added corrosion resistance.
Thicker flange.
Fit type: Vehicle Specific

I bet your truck will do wheelies now...

[Mike81K10]

Just hope with the water pump and thermostat, it wound over heat. My brother has 2 cars that will pull the front end off the ground. A 78 trans am race car and a 74 firebird daily driver.