Good radiator for a Flatty

Tried the search, but I don't think it was working, it didn't match radiator in any forum :?

I was looking at the Fiero radiator that has been used in the ECJ5's, but how is it mounted, on end instead of normal?

The radiator I have was about 4" too tall

I am also looking at a 65-66 Mustang radiator I guess :?

 

I have a '80 GM Monza v6 cross flow radiator in my 3a with a 225. I don't have a shroud and it cools it very well. I do have a 900 cfm pusher fan in front. I like it because it cools down the motor after shuting down and keeps the temp spike under control in summer heat. Check out the CJ3a red dog photos. http://autos.ph.groups.yahoo.com/group/WillysTech/photos/browse/7270

 

good looking jeep, and clean install. How bad was it to fab into place?

 

desert rads?

 

thanks, the hardest part was finding which radiator to use. At 1 thru 10 I'd say a 7 on difficulty. Several trips to wrecking yard looking at ways companys mount cross flows really helped. 1x1 tube iron uprights for the top clamps was maybe the hardest part.A lot of trial fit-up was required but all in all worth the extra effort. It all came together smoothly after that and is sturdy with excellent cooling.

 

I used an S10, aluminum cross flow. It is out of a 2.5 4 cylinder but works great. I used 2 electric fans from a Subaru Legacy. Actually the Legacy used one big fan and one small. I used two small ones. No problem cooling my 231 and the perfect width and highth for my fiberglass front fenders.

 

x2

 

Not sure if this helps but during the 4.3 swap, I measured what size would " fit " the best and went to a local radiator manufacturer and he built it at a very reasonable cost. He got kind of enthusiastic about making something other than the everyday replacement radiators and even had me bring the grill / slash shroud to him for mounting tabs etc. I went with a 16" puller fan that allowed for a thicker core ( 4 core cross flow ) This photo isn't real good will give you some idea. Again, might be worth looking into rather than going with a stock radiator size.

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I was considering having one made, I know they quoted me a reasonable price for my YJ, but I had them repair what I had instead, guess I will definitely get a price...

Do you happen to have your measurements still, if they were handy I could run there right after work today?

 

I'll go out and measure this AM. Are you going with engine fan or electric ? I didn't like where the engine fan would center on the radiator and that was another deciding factor in going with electric. Ive got the fan wired to a toggle switch on the dash so its up to me to keep an eye on the temp gauge. Could have used a thermostat switch with a cut off toggle for deep water but didn't. Don't need the fan in cool temps unless stuck at a light for awhile. Just had a thought: Call your radiator guy and see what size cross flow cores he stocks as a starting point ( tanks, inlets, outlets, drains etc are added to stock core sizes if I remember right. Or measure the optimum size for you and see how close he can make it.

 

I have an electric I will be putting on, already had it, and I dont have the mechanical one. Thank's for measuring -- but only if you have time

I have an electric in my YJ now so the installation should be the same.

 

Beat me too it

 

Height is 16" Width is 20.5" 2 5/8" Thick Took these photos as they might give you some ideas. Edit: Went with a cross flow so tanks are on the side instead of top and bottom to keep the height down. Hope this helps a little. Jeff.

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wow that was fast! Thank you!!!

 

Not a phrase you normally hear !! R) R)

 

I don't think a 5 radiator will work in a flatty. He needs one narrow enough to fit between the frame rails because of shorter grill height. Also I would not hang one on the sheet-metal grill. With flatfenders it's best to keep them separate. Mount radiator on uprights welded to the frame. For front body clip mounting use only the center mount on the grill, bolt grill to fenders and only bolt fenders to the body. Get rid of the (vertical hat channel) wheel well fender mount. The frame flexes a lot and when all the stock fender and grill mounts are used, they develop lot's of cracks and mounts are ripped up. Using only the center grill mount lets frame pivot under body as it twists. Hanging the radiator on it is just to much weight and it survives a roll over much better when frame mounted. This experience is more than IMHO. This is old school and it works.

 

Good info