63 willys over heating - JeepForum.com
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post #1 of 3 Old 05-02-2004, 07:37 PM Thread Starter
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Unhappy 63 willys over heating

i have a 63 willys and i have a 350 buick engine in it, ive put in a high flow water pump. A new radiator core, 160 thermastat, New clutch fan, not much room to add anything. Can't fit a bigger radiator. Any help? Thanks

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post #2 of 3 Old 05-02-2004, 08:21 PM
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Humm try a Flow kooler water pump they are the best. Or just swap in a flow kooler impeller disc kit. But you already have a high flow pump so first try a Flex-a-lite mechanical fan the rigid kind. Also Kit's do exist to increase the caspsity of your radiator with a smaller remote raditor. Also check to make sure the coolant is actually flowing evenly over your raditor.
If that dossen't work then you should go for a 3 or 4 core radiator and a electric fan. Hope this info helps a bit.


1999, Sport, 4-door, 4L-I6, AW4 auto, np231, 8.25 rear, dana 30 h-p.
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post #3 of 3 Old 05-03-2004, 11:28 AM
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Is the fan centered behind the rad? How close is it? Got a shroud? Fan clutch in good shape? (How do you have room for a fan clutch??? Did you cut the "funnel" sheet metal off of the back of the grille??)
What size core are you running? 2-row? 3-row?
You Can fit a bigger radiator, if you use a '72/up grille... but you need to fab a different way to support that style of grille.

You should check out the website and forums in my sig. We focus on mods to old rigs just like yours

'05 LJ

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