post #1 of Old 09-04-2002, 12:09 PM Thread Starter
jeepcj
Registered User
 
Join Date: Aug 2002
Location: Amarillo Texas
Posts: 4
Unhappy '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

jeepcj is offline  
post #2 of Old 09-04-2002, 12:28 PM
Steelhead
Registered User
 
Join Date: Feb 2002
Location: Las Vegas
Posts: 66
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.
Steelhead is offline  
post #3 of Old 09-05-2002, 04:35 AM
lynn
Registered User
 
lynn's Avatar
2005 LJ Wrangler 
 
Join Date: Sep 2002
Location: York, PA
Posts: 695
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/

Lynn
'05 LJ

EarlyCJ5.net Forums
lynn is offline  
post #4 of Old 09-06-2002, 02:47 AM
Jeepnvegas
Registered User
 
Join Date: Sep 2002
Location: Las Vegas, Nev.
Posts: 18
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.
Jeepnvegas is offline  
post #5 of Old 09-09-2002, 06:47 AM
Scrambler82
Registered User
 
Scrambler82's Avatar
1982 CJ8 
 
Join Date: Jun 2002
Location: Boston Area
Posts: 3,594
Cool

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.

Scrambler82

Do it right the first time !
Scrambler82 is offline  
post #6 of Old 09-09-2002, 08:40 AM
onesojourner
Registered User
 
Join Date: Jul 2002
Posts: 101
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...
onesojourner is offline  
post #7 of Old 09-09-2002, 10:12 AM
Scrambler82
Registered User
 
Scrambler82's Avatar
1982 CJ8 
 
Join Date: Jun 2002
Location: Boston Area
Posts: 3,594
Cool

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.

Scrambler82

Do it right the first time !
Scrambler82 is offline  
post #8 of Old 09-10-2002, 07:01 PM
cadman
Registered User
 
Join Date: Sep 2002
Posts: 5
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.
cadman is offline  
post #9 of Old 10-14-2015, 04:45 PM
biggiebiggs
Registered User
1966 CJ5 
 
Join Date: Oct 2015
Posts: 4
Jeepnvegas, What is needed to be done to swap to the Chevy V6. 4.3L I was looking to do that to my 66' CJ5 with the 225 engine. Its old but runs, thought about overhauling the original V6 or swapping it for the 4.3. what do you think and what is needed? tranny, adaptors, driveshaft, etc?
biggiebiggs is offline  
post #10 of Old 10-14-2015, 06:09 PM
StoneTower
Registered User
1985 CJ7 
 
Join Date: Jan 2015
Location: Fair Oaks
Posts: 192
The thread is 13 years old....
StoneTower is offline  
post #11 of Old 10-14-2015, 06:38 PM
skizriz
Registered User
1978 CJ7 
 
Join Date: Jun 2011
Location: Scottdale
Posts: 4,908
And jeepnvegas hasnt posted in eight years.

78 CJ7.. 258.. TH400/Dana18.. SOA/stock YJ springs.. 35" General Grabbers.. Waggy 44s.. 4.88 gears...Spartan/Lockright...Fiberglass front to rear
skizriz is offline  
post #12 of Old 10-14-2015, 07:01 PM
biggiebiggs
Registered User
1966 CJ5 
 
Join Date: Oct 2015
Posts: 4
Any help here would be welcome...

I have a 66 CJ5. looking to swap out my V6 to a chevy 4.3 V6. Im not going on any jamboree or anything but using it as a drive around town/and towns over. So i need it to go on the highway as well as. I read Novak site and it doesnt tell me what is all involved with swapping engines. has anyone done a swap with a 4.3 from a buick V6. what parts am I going to need that Im not thinking of. Running stock parts right now. thinking of going with SM420, with any other adaptors may need to mount the 4.3 to the new tranny, will i need to shorten the driveshaft, if so it can not be permanent, only temp right? Will eventually have to get a new shaft? Any help her would be great.
biggiebiggs is offline  
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
4.0L Engine Swap gjohnson Jeep CJ Forum 25 10-29-2013 12:46 PM
Engine swap or engine and transmission swap Notplayn Jeep CJ Forum 3 07-13-2008 07:31 PM
304 vs 401 Engine swap jeepin-G Jeep CJ Forum 24 04-03-2008 08:48 PM
Tranny swap now with future engine swap in mind gestuhlm Jeep CJ Forum 1 04-23-2006 07:49 PM
engine swap youngerjeeper Jeep CJ Forum 5 11-25-2004 08:19 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome