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Discussion Starter · #1 ·
To avoid hijacking another thread I want to start this one.



I could have swore this port was wet, it's the back of the passenger side on an Edelbrock manifold.

It runs too cool (according to the temp gauge, Autometer analog). I was in stop and go traffic yesterday and it struggled to get to 180˚. I need to get the IR gun on the engine and see what it reads.

If there's no coolant in that area that might explain the readings. But the Autometer temp probe (analog thermistor) is pretty long so I'm limited as to where it can go.
 

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SBF's have coolant passages at the back of the heads only so you can use the same head on either bank. The coolant flow is up from the block into the head and then FORWARD through the head to the front water outlet and then over the intake to the thermostat housing. If the rear water ports aren't blocked and the intake has a crossover, coolant will find the path of least resistance which can make one side run cooler than the other.
 

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The temp reading at the rear of the intake won't be accurate, as it's missing all of the heat picked up as the coolant passes through the heads. I would move the sensor to the front, use a bushing as needed to allow it to fit in the crossover.
 
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Discussion Starter · #4 · (Edited)
The temp reading at the rear of the intake won't be accurate, as it's missing all of the heat picked up as the coolant passes through the heads. I would move the sensor to the front, use a bushing as needed to allow it to fit in the crossover.
I need to find a coolant diagram to help me understand this better because @Woodchuck said it goes from the block to the heads. I assume this means that it comes out the front of the heads?

This is an informative post although different intake.

 

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I have the temperature sender in the front port on my Edelbrock RPM intake. Are you not able to use this one? I do not think the rear of the intake will provide a correct reading and have never seen a temp sender installed back there.
 

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Discussion Starter · #6 ·
I have the temperature sender in the front port on a my Edelbrock RPM intake. Are you not able to use this one? I do not think the rear of the intake is wet and have never seen a temp sender installed back there.
Do you have a long analog one or electrical? I assume you mean the place where the stock sender is?
 

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1970 Ford Mustang, Windsor 302 V8, C4 Automatic Transmission, Holley 600 Carburetor
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My temperature monitor is on the port to the right of the one above. I run an edelbrock intake on a 302
 

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1970 Ford Mustang, Windsor 302 V8, C4 Automatic Transmission, Holley 600 Carburetor
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Where did you run the heater hose?
On the port behind the left port next to my thermostat sensor. I run that hose in the same position as rhutt does. The other one runs from the water pump.
 

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On my EFI equipped 302, I run the sensors and heater like this in my Edelbrock manifold . . .
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gauge sensor is in the thermostat housing.
 

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These are two locations for mechanicals....
I recently installed another mechanical temp gauge.(dash). I used these two locations for mine..
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The other option would be to get a heater hose fitting with an extra port that you could use.
 

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Do you have a long analog one or electrical? I assume you mean the place where the stock sender is?
It's an electronic Autometer. I guess your tubing might not be long enough to reach unless there's slack coiled up. I have heater hose with a shutoff valve by the thermostat and a thermometer in a port in the 5.0 Explorer/Mountaineer thermostat housing from when I atill had the Falcon cluster. Everything I have read and seen indicates this is the best location for reading coolant temp.

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My thermostat housing doesn’t have a port.
I use a 5.0 thermostat housing on my car that has a threaded port in it. There are traditional style SBF 45° angle thermostat housings with threaded ports on them.

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