where is the radiator petcock? and what is the best thermostat?
- Thread starter mmvic
- Start date
SY2455
70's Veteran
Re: where is the radiator petcock? and what is the best thermostat?
If you don't need to change it, Keep the 160*. After using the stock 195*, than a 180*. I put the 160* in and the truck runs so much better with it that I'll never use the other two again. The drain is on the bottom of the tank on the driver side if I recall right.
If you don't need to change it, Keep the 160*. After using the stock 195*, than a 180*. I put the 160* in and the truck runs so much better with it that I'll never use the other two again. The drain is on the bottom of the tank on the driver side if I recall right.
Don W.
Stab it and steer it
Re: where is the radiator petcock? and what is the best thermostat?
I've read that you should not go lower than 180 WITH a stock chip. Don't know why. That drain is right over the frame so it spills everywhere. Put the truck up in the air and use a bucket or maybe just a big drain pan.
I've read that you should not go lower than 180 WITH a stock chip. Don't know why. That drain is right over the frame so it spills everywhere. Put the truck up in the air and use a bucket or maybe just a big drain pan.
Foot Performance
Donating Member
Re: where is the radiator petcock? and what is the best thermostat?
i had a 160 and the truck block barely got to 140 at the hottest spot and it was useing a lot of fuel due to no closed loop (aftermarket chip compensates for that i believe) but i switched to a 180 and mine actually runs better with that and does not run as rich but it still does not get up to 180 degrees do maybe it just runs cold be the first motor i have seen that has that prob so maybe thats why.
that is with a digital rateck double check with a nother diffrent model.
i had a 160 and the truck block barely got to 140 at the hottest spot and it was useing a lot of fuel due to no closed loop (aftermarket chip compensates for that i believe) but i switched to a 180 and mine actually runs better with that and does not run as rich but it still does not get up to 180 degrees do maybe it just runs cold be the first motor i have seen that has that prob so maybe thats why.
that is with a digital rateck double check with a nother diffrent model.
Foot Performance
Donating Member
Re: where is the radiator petcock? and what is the best thermostat?
glad to help .hopefully if you havent changed it you will have fun .haha just make sure both surfaces are clean and good and dry
glad to help .hopefully if you havent changed it you will have fun .haha just make sure both surfaces are clean and good and dry
Jimmy
Banned
Re: where is the radiator petcock? and what is the best thermostat?
Just don't buy it at Oreilly Auto Parts,(national chain) those guys will rape you.
I was working on a Blazer I had just bought,and ask my wife to go pick me up a 160 stat.
She went to Oreillys.Comes back with a $13 thermostat.I was like "no ****ing way" Had her take it back and get the $4 one from Autozone.
Just don't buy it at Oreilly Auto Parts,(national chain) those guys will rape you.
I was working on a Blazer I had just bought,and ask my wife to go pick me up a 160 stat.
She went to Oreillys.Comes back with a $13 thermostat.I was like "no ****ing way" Had her take it back and get the $4 one from Autozone.
#1611 - Ty
New and loving it!
Re: where is the radiator petcock? and what is the best thermostat?
Is there a part number you guys use for the 160* stat? or do you walk up to the counter and say 160* stat for a 4.3L?
Is there a part number you guys use for the 160* stat? or do you walk up to the counter and say 160* stat for a 4.3L?
mmvic
New member
Re: where is the radiator petcock? and what is the best thermostat?
Do u want the part # for the 180*? so l left the 160 finished the flush and started it up. ALOT of smoke out of the ehaust, always had a litlle at start up but now its bad. i started another fourm with that topic and there saying its the head gasket... wtf did i do?
Do u want the part # for the 180*? so l left the 160 finished the flush and started it up. ALOT of smoke out of the ehaust, always had a litlle at start up but now its bad. i started another fourm with that topic and there saying its the head gasket... wtf did i do?
