replacement thermostat

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Jun 22, 2010 | 09:14 PM

marcograms

Thread Starter

Junior User

Joined: Jun 2010

Posts: 86

Likes: 0

From: Sulphur LA

replacement thermostat

Hi everyone. I'm pulling my radiator out of my truck to have it serviced at a friend's radiator shop. It has a seam leak in the top and could use a thorough cleaning anyway. I will flush the block and heater core as well. I would like to replace the thermostat while I'm doing all this. My question is what temperature stat to get? 78 f150 with 460 and auto. I've asked and no one seems to agree. Thanks in advance.

Jun 22, 2010 | 11:55 PM

TexasTrash

Senior User

Joined: Jan 2010

Posts: 198

Likes: 1

From: Tucson, AZ

I think OE is 192.

Jun 23, 2010 | 01:51 AM

Dirt racer

Laughing Gas

Joined: Dec 2007

Posts: 796

Likes: 1

From: Minnesota

I always go with the 180 for the older stuff with no emissions and 192 for the newer stuff with emissions. Napa makes a heavy duty thermostat that I really like. Check it out.

Jun 23, 2010 | 02:00 AM

TexasTrash

Senior User

Joined: Jan 2010

Posts: 198

Likes: 1

From: Tucson, AZ

I have a fail safe 192 in my 360. My engine seems to run better the hotter it gets. It has no emissions stuff on it.

Jun 23, 2010 | 07:25 AM

marcograms

Thread Starter

Junior User

Joined: Jun 2010

Posts: 86

Likes: 0

From: Sulphur LA

Thanks dirtracer and TEXASTRASH. TEXASTRASH, I like that. I get email notification response to the forum questions and I immediately laughed when I opened it and saw the name.

Jun 23, 2010 | 07:41 AM

fmc400

MSEE

Joined: Apr 2004

Posts: 10,386

Likes: 35

From: Austin, TX

192-195 degrees F. The engine is designed to run at this temperature, which is why it's the OE thermostat temperature.

Jun 23, 2010 | 08:44 AM

704 dentside man

Posting Guru

Joined: Mar 2010

Posts: 1,196

Likes: 2

No electronics, I run 180*...has electronics, I run stock replacement. Either way, go with a Robertshaw tstat. A little pricier than most, but I have yet to have one fail in any of my rigs...and even if they do, they're designed to fail open.

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Jun 23, 2010 | 04:52 PM

4x4 Bart

Fleet Mechanic

Joined: Feb 2007

Posts: 1,326

Likes: 48

From: Middle TN

180 is too cold for our engines, need at least 192. Buy a premium thermostat, they start at about 10 dollars. Cold thermostats cause an engine to warm up too slowly. An engine wears the most when its cold especially the front cylinders. Ask you local engine builder.

Jun 23, 2010 | 07:05 PM

#10

dkf

Hotshot

Joined: Mar 2007

Posts: 10,101

Likes: 40

From: Pa

Had a 180 in mine because I ran at highway speeds a lot at high rpm. Switched back to a 195.

Jun 23, 2010 | 10:08 PM

#11

70 Bronco TX

Senior User

Joined: Jul 2009

Posts: 377

Likes: 0

From: Canyon, TX

I run a 180 in my F250 and it hits that mark easily for cool weather. But when it's in the 90's outside it creeps up to 215 in city driving. I don't like that much, but wonder what it would do with a 190 in it. My Bronco runs 190 consistently, even in a slow parade drive, but don't know what thermostat is in it....love that 302 engine and it runs smooth.