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Unread 09-04-2002, 12:09 PM   #1
jeepcj
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Join Date: Aug 2002
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'66 CJ5 engine swap ?? how big should I go?

I just purchased a stock 1966 CJ5 and am looking to upgrade the engine (4 banger). I'm unsure of what modifications would be required to swap up to a V8.....looking at 304 or 350? any thoughts? also original 3 speed tranny any suggestions on upgradeing it? I'm leaning towards the 350 engine.

Other planned additions: 4'' lift, 33in tires and possible front and rear axel upgrades.


Thanks
John

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Unread 09-04-2002, 12:28 PM   #2
Steelhead
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If you want to go with a 350 Chevy, do a search and find Advanced Adapters they carry every thing that you will need for the swap.
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Unread 09-05-2002, 04:35 AM   #3
lynn
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The best thing you can do for that '66 is to install a 225 Dauntless V6. It was a stock option in '66, so bolt up is easy. This engine is small and light, but develops some kick-butt torque.
Learn more about the Dauntless V6 and the Early CJ5s (1955 - 1971) on Sparky's Early CJ5 Page:
http://incolor.inetnebr.com/asparks/
and our forum at:
http://www.forumco.com/sparky/
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Unread 09-06-2002, 02:47 AM   #4
Jeepnvegas
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I got a 225 cid in mine and it can really move the little Jeep. A conversion to a 231 or the chevy 4.3 liter can be done with mininal effort. In my personal opinion, I think the the frame is too small for a V-8. I have seen it done and some work good. But I would look into a small block 6.
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Unread 09-09-2002, 06:47 AM   #5
Scrambler82
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My first choice would be a 5.0L Ford, but the CJ-5 has small engine compartment so as much I do not like saying it, use a Chebby 4.3 V-6. I think it will deliver more power than the CJ-5 can handle.


Good Luck on your choice.
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Unread 09-09-2002, 08:40 AM   #6
onesojourner
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Quote:
Originally posted by Nuck'nFice
My first choice would be a 5.0L Ford, but the CJ-5 has small engine compartment so as much I do not like saying it, use a Chebby 4.3 V-6. I think it will deliver more power than the CJ-5 can handle.


Good Luck on your choice.
ive seen a 400 in there so i dont think 5.0 is going to be to big...
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Unread 09-09-2002, 10:12 AM   #7
Scrambler82
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Me Too, but the least work is what I was thinking about.

But if a 5.0 Ford will fit then "let it be".
The Ford is lighter than a Chebby 5.0 and smaller in OD.

A lot of choices, contact Z&M Products, then have 5.0L Ford Mounts and stuff.
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Unread 09-10-2002, 07:01 PM   #8
cadman
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65 CJ5, I threw a 258 inline 6 in, she was tight, had to do some work on the firewall and go with electric fan, but she runs good.
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