Anyone know what temp Thermostat an 83 5 liter would have come from the factory with?
thanks
83 5 liter thermostat temp
Anyone know what temp Thermostat an 83 5 liter would have come from the factory with?
thanks
I'm thinking 195
Last edited by gmatt; 04-27-2022 at 05:26 PM. Reason: spelling
180 - 195 degrees will work fine. Not sure hwre you are but I tend to run 180 in the south.
"If you can't explain it simply, you don't understand it well enough."
Albert Einstein
1984 20th Anniversary GT350
Almost "Stock"
I find 195 is great for me but I am in New York and I have cfi. If I were you, I would pop in a oil temp gauge (I use a super simple drain plug version that works great) and tune my thermostat to whatever keeps the car in the good zone. To me that means I hit 210 on normal everyday drives, up into the 230s and higher when pushing it hard, and doesn't muck around for very long below 200.
If you don't get the oil up to 210ish you build up crap in the oil that will damage your engine, go much over 250 and things are probably getting too hot in spots. I use 0w40 mobile 1 which is good upt to 350 but many lesser oils fall apart as low as 260
1984.5 G.T.350 5.0 CFI AOD Convertible (TRX package, loaded)
K&N filter in a stock dual snorkel, GT40 heads, Edelbrock 3721 intake, MSD 8456 Dist., MSD 8227 coil
Comp cams XE254H, hypereutectic pistons
Hooker Super Comp Shorty Equal Length Headers, catted BBK H-pipe, full custom duals
Maximum Motorsports caster/camber plates and strut tower brace, 3.73 rear, dura grip (both Yukon)
Ford Performance Springs, Firehawk A/S 225/55r16 on LMR TRX r390 wheels (street)
Federal 595 rs-rr 245/40r17 and 255/40r17 on OE cobra r wheels (race)
AOD rebuilt with a 6 clutch direct drum, Koline steels stacked with 8 clutches, Kevlar band, superior shift kit, new torque converter. --Everything else stock and fully functional.
Anything from 180-195 will work great.
Even in a hot environment. As long as your cooling system is functioning well.
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Last edited by richpet; 04-28-2022 at 02:59 PM.
83 5.0 GT. Quicker than it looks! 10:1 (or just over) 306, Motorsport a332 cam, 140A alt, t5 conv, 8.8 w/ 3.27's, Edel rpm, alum rad, very worked e7's, Holley SA carb, etc... SOLD IT!!!!
Now an 1981 Granada! .040 over 302, Edel E-street heads... Currently building a 347 because, why not?
"Never underestimate the power of stupid people in large groups"
Stock was 195 in my '85. I'm near certain it was the same in '83.
Tim McG
I've owned my '85 GT since '86.....I call THAT 4-eyed pride!
It was.
I built my .040 over 302 stoutish and use a 195° T-Stat. Radiator works great as do the fans so my temp stays between 190-205 all the time. Runs great...
Sent from my Pixel 6 Pro using Tapatalk
83 5.0 GT. Quicker than it looks! 10:1 (or just over) 306, Motorsport a332 cam, 140A alt, t5 conv, 8.8 w/ 3.27's, Edel rpm, alum rad, very worked e7's, Holley SA carb, etc... SOLD IT!!!!
Now an 1981 Granada! .040 over 302, Edel E-street heads... Currently building a 347 because, why not?
"Never underestimate the power of stupid people in large groups"
Ford put a 190 degree in the mid-90's F250 and F350 HD with 460. It is a high flow piece and Motorcraft so it is an outstanding part. Works great in our foxes. We run them in several foxes as well as in our 96 F250.
Part number is
RT-1067-A
Last edited by erratic50; 05-08-2022 at 04:05 AM.
Part number for the thermostat is F5DZ8575A, it's a 197 degree thermostat.
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