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Old December 12th, 2005, 05:33 PM   #1
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Default 2.5 vs 4.0 radiator size...

Do these engines share the same size radiator?
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Old December 12th, 2005, 07:01 PM   #2
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Originally Posted by clarkstoncracker
Do these engines share the same size radiator?
No 4.0L is quite a bit bigger, its what im using for the 350 swap, a 2.5L uses brackets to fit where the 4.0L one would normally go.
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Old December 12th, 2005, 07:20 PM   #3
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Originally Posted by BigBlkYJ 355
No 4.0L is quite a bit bigger, its what im using for the 350 swap, a 2.5L uses brackets to fit where the 4.0L one would normally go.
So thats how I can tell the difference? if I have a radiator with the 4" brackets around the outside, that means its for the 2.5? Awesome.. thanks
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Old December 12th, 2005, 07:36 PM   #4
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Originally Posted by BigBlkYJ 355
No 4.0L is quite a bit bigger, its what im using for the 350 swap, a 2.5L uses brackets to fit where the 4.0L one would normally go.

I beg to Differ
the 4.0L and 2.5L are the same(stock) and a tj radiator will fit a yj, well that, and the 350's water outlets are opposite the stock 4.0L location
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Old December 12th, 2005, 08:38 PM   #5
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I beg to Differ
the 4.0L and 2.5L are the same(stock) and a tj radiator will fit a yj, well that, and the 350's water outlets are opposite the stock 4.0L location

According to my FSM, advance adapters, a radiator website and having the 2 of them sitting next to each other in the garage, they are different. The FSM says the 2.5L yj's has a 1 row, and the 4.0L had 2 row. They do look pretty different in size...
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Old December 12th, 2005, 08:43 PM   #6
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car-part.com lists them as different between 2.5 & 4.0, and different between auto and manual (no surprise there), and different between YJ & TJ.
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Old December 12th, 2005, 11:55 PM   #7
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The 2.5 rad is noticably smaller than the 4.0 liter one.
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