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1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

Coolant hoses and engine swap

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Old Sep 13, 2021 | 11:30 PM
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spotana98's Avatar
spotana98
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From: Montana
Coolant hoses and engine swap

So in my attempt to swap a 360 from a 1970 F100 4x4 to my 1967 F250 4x2, I’ve learned a great deal, including using a front dump oil pan and tube. I am, however baffled at this coolant hose (and pump?) that comes out of the passenger side of the block on the 360. I don’t believe that the 1967 coolant config has this coolant tube coming out of the block. I’ve tried to find a diagram for the coolant systems for these two years, but I haven’t had a whole lot of luck. Picture attached. If there is a coolant configuration difference between the 67 and the 1970, any suggestions on how I can seal this, or incorporate it into a 1967 coolant system.



 
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Old Sep 14, 2021 | 11:29 AM
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RichS2659
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From: North Pole, Alaska
That is an old plug-in coolant pre-heater for warm startups. It was before using the now standard method of freeze plug heaters. Depending on where you are from in Montana, they would be used. Heaters are a common item in Alaska where it can get up to -60+.
https://www.fordification.com/tech/i...lockheater.jpg
You can plug it or replace it with a new freeze plug heater or a regular freeze plug.
 
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Old Sep 14, 2021 | 03:01 PM
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spotana98
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From: Montana
Originally Posted by RichS2659
That is an old plug-in coolant pre-heater for warm startups. It was before using the now standard method of freeze plug heaters. Depending on where you are from in Montana, they would be used. Heaters are a common item in Alaska where it can get up to -60+.
https://www.fordification.com/tech/i...lockheater.jpg
You can plug it or replace it with a new freeze plug heater or a regular freeze plug.
Thanks for the quick response! I guess I didn't look to see how it's installed in there. Is it just a standard freeze plug port with a nipple attached to facilitate a hose? I assumed it was a nipple that's threated into the block, but I'll have to take a closer look when I can. It gets pretty cold here in my part of Montana, but once this girl is up and running, it'll be parked during the winter, so I won't need any kind of pre-heater.
 
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