Radiator/ Temp Question
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Cross-Country
Joined: Mar 2009
Posts: 62
Likes: 1
From: San Diego, CA
Radiator/ Temp Question
The truck 76, IL6 300, flairside, LWB. I need to replace the radiator due to a popped seam. There are two different radiator I can get a AutoZone. The regular one (smaller) and the HD version, three core. I measured, both will drop right in. Now,I have heard that the 300 will run more efficient on the hotter side of the thermostat. Should I go with what is in the truck now, smaller one, should I gowith the HD version or will the bigger one cool to much? Summer is on the way, west coast can get pretty hot. All thoughts and opinions are appreciated. Thanks
Posting Guru
Joined: Sep 2009
Posts: 1,159
Likes: 1
From: Suburbs of Chicago
If you've got the dough, get a three core. Your engine will keep a relatively constant 195 once its warmed up due to the thermostat's regulation of water temp.
As for warm/cold, yes an engine that is warmed up is more efficient, but if you're on the west coast you don't have to live with below zero temps, which is what kills efficiency (closed or 1/2 choke operation)
As for warm/cold, yes an engine that is warmed up is more efficient, but if you're on the west coast you don't have to live with below zero temps, which is what kills efficiency (closed or 1/2 choke operation)
Junior User
Joined: Apr 2012
Posts: 91
Likes: 2
From: Long Beach, CA
Repair your radiator
I concur with what was said on repairing your original radiator. It is a much more robust unit than what is made in China and sold here as a drop in replacement. Even if you end up needing a new core, you will have a radiator that functions and fits as Ford intended.
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