Vortec cooling


RandyN

New Member
Joined
Apr 29, 2020
Messages
6
Location
Surrey BC Canada
I am in the midst of swapping a 4.8 Vortec/4L60/NP241 into my 92 YJ. It had a 2.5 with the AX 5. I am a bit tight on budget and contemplating putting the stoc rad back in with an aux transmission cooler until I have some more funds. I have searched the web till my eyes are square!!
So it would be temporary, I dont have a heavy foot and a hot day here is 95-100F and there aren't a lot of those. What are the thought in this group? Has anyone had success or failure?
Thanks
Randy
 

Fouledplugs

YJ Addict
Supporting Member
Joined
Apr 15, 2020
Messages
307
Location
South Carolina
I highly doubt the 2.5 radiator will keep up.

Will the inlet and outlets even be right for your new engine?

Are you using the mechanical fan off the Vortec?
 
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RandyN

New Member
Joined
Apr 29, 2020
Messages
6
Location
Surrey BC Canada
I highly doubt the 2.5 radiator will keep up.

Will the inlet and outlets even be right for your new engine?

Are you using the mechanical fan off the Vortec?
I can make the inlet and utlet work wihout too much difficulty. There isn't a fan on this engine so will be solely electric. I am thinking I best wait and buy a proper sized rad with an integrated transmission cooler.
 

jeepjoe43

YJ Enthusiast
Joined
Dec 4, 2020
Messages
242
Location
Black Canyon City, AZ 85324
I can make the inlet and utlet work wihout too much difficulty. There isn't a fan on this engine so will be solely electric. I am thinking I best wait and buy a proper sized rad with an integrated transmission cooler.
I bought my 3 row Champion aluminum radiator and electric fan w/shroud from Radiator Express for, I think, less than $400.
Think I actually found it on Amazon.
Radiator Express called me to let me know the fan might interfere with the water pump.
I assured them it would be fine as I have the 2.5, and half the engine bay IS fan shroud.
The original radiator had a bad case of the crusteze, but it still worked, also wanted to be rid of the propeller.
 
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