Does anyone know where I can get a bigger rad for my non-intercooled truck. That is the one area that I would like fix. I want to keep my motor running at a constant temp. I can see problems towing in the heat of summer.

 

A bigger radiatior will allow you to run cooler but that's generally a bad idea. These engines are HEAT engines which means the more heat you suck out of the engine is less for pushing on the pistons. Until you overheat of course but that's more of a limitation of the lubricants and the liquid coolant.

I'm thinking of installing a 190 degree thermostat. I run fully synthetic oil also.

Edwin

 

The 91.5 to 93 radiator is a cross flow design which cools better and it may be a little bigger. That would be a nice upgrade. I don't know if you could make a 2nd gen radiator work, i'm pretty sure they are bigger.

A under bed cooler for the tranny would also help while towing to keep the tranny fluid/heat from over heating your radiator fluid.

 

I have a over heating problem in the summer my self, and the first thing that i'm going to try(When it gets hot!)is the up dated fan clutch and fan!

Go to the top of the post and click on Tech Articles By Monty click on the link and go to Misc. 1 Gen part #, Go the bottom of the page were it said "Up graded OEM Fan and Fan Clutch!!" the part #s are there, just call your local dealer and order the part numbers!

When it gets hot enuff this summer to prove it work!!...or not i'm going to try it! ...

 

The non-intercooled trucks run too hot for their own good IMO

 

A couple of guys on this site have put the intercooled style radiator in the old trucks. It takes minor (non-welding) fab work to mount it to the core support.

 

I installed a 93 in to my 90 with minor work, and it work wonderful.
just a little hacksaw work and an couple drill holes,hoses and upper rad brackets real simple the fan shroud will be the only hard part, finding one... other then that a costom built one

 

I don't know how mine will do with a load on. I'm tempted to hook up the 5er and go somewhere just for the fun of it but that would require a lot of work right now to get it ready and I need to finish the paint job.
Besides there's water standing in the yard and I'm afraid I'd get stuck.

During the winter it seemd like the heater would never put out enough heat even though the temp gauge sits right where it always sets during warm weather. That and increased fuel economy are why I want to try the 190 degree stat. The stat shouldn't affect the higher temps or make it run hotter above 190 than it would with the stock stat.

Edwin

 

a stock 89-90 with auto will cook with a load up hill

 

So glad I got a Get Rag.

 

I don't even pull with my truck and I can get her pretty hot just playing around.

 

The thermostat should keep the engine at the correct temp as long as there is enough cooling capacity in the radiator. I have read that the 98 to 91 trucks have the tendency to crack heads. I'm sure that excess heat won't help that little problem. I am hoping that keeping my truck in the correct temperature range will help the longevity of the motor.

 

Has anyone tried this fix
http://groups.google.ca/group/rec.ou...d77af0d520c9ff

 

Leave it to those Dodge boys to save a couple of bucks in the design. The baffle idea is the perfect solution short of replacing the radiator.

Edwin