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It is better if you do it at the top, that way you can remove or replace the stat without losing a drop of coolant. Also, no need to cut the fan shroud if you do the back to back chevy housings. Early model S10 housing with 95-96 Chevy C/K. C/K bolts screw in to the S10 housing with an impact and you don't need nuts as long as you don't overtighten.
The reason I ask is that in all of the thermostat mod and over heat threads there is a lot of discussion about where to get the thermostat that opens at the right temp. I personally have three different make units. Two of which are supposed to be 180 degree. I’m unsure about the third as it was on the truck from day one of my ownership.
Tested on my kitchen stove with a temp prob on my multimeter, they all were fully open at 190. Presently, my truck runs at 195-202 degrees per the ultra gauge. That’s in central Georgia right now with the A/C inop.
I suspect with the added heat from the A/C system in the coming summer, I may have over heat issues. Just trying to get ahead of it now.
BTW, this is on a 020 rebuild with all new internals except for the crank and rods, pinned liners and throughly bled all new cooling system. I have about 800 miles on the clock with a reports 13.5 mpg.
...The reason I ask is that in all of the thermostat mod and over heat threads there is a lot of discussion about where to get the thermostat that opens at the right temp. I personally have three different make units. Two of which are supposed to be 180 degree. I’m unsure about the third as it was on the truck from day one of my ownership.
Tested on my kitchen stove with a temp prob on my multimeter, they all were fully open at 190. Presently, my truck runs at 195-202 degrees per the ultra gauge. That’s in central Georgia right now with the A/C inop.
I suspect with the added heat from the A/C system in the coming summer, I may have over heat issues. Just trying to get ahead of it now.
BTW, this is on a 020 rebuild with all new internals except for the crank and rods, pinned liners and throughly bled all new cooling system. I have about 800 miles on the clock with a reports 13.5 mpg.
Yes, several members use that in-line.
The temperature rating for the thermostat is the one it opens at. Not the temperature the engine will run, which depends much on ambient, rpm, speed, air flow, towing, climbing, coolant flow...
At what temperature would you call it 'overheating'?
Anything below 210 is fine. If it gets to 210 at idle and drops to 195 or so when driving, all is good. My truck can run from 179-210. It all depends on load, speed, ambient temp, etc. My truck also runs warmer in cold weather, as it was designed to. Do not worry about anything below 210. If my truck ran all day long at 200 without fluctuating, I'd be thrilled. That's the optimal temp. 180 Britpart thermostat here. Actually runs cooler than the OEM grey 180. You only need to worry when you pass 210 and it doesn't drop when moving....
I like to run Chevy 170 stats in the 99-02's, throws a low temp code if you run those in an 03-04 though. Either way inline stat runs 10-20 degrees cooler and much closer to actual stat rating. You could run as low as 140 or 160 (boat thermostats), but not really recommended for street vehicles.
