can I put a 4.0 head on a 232? - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > General Technical Discussions > Engines & Drivetrain > can I put a 4.0 head on a 232?

Introducing MONSTALINER™ UV Permanent DIY Roll On Bed LineSavvy Billet LED Tail LightsLight up the holidays with LED lights from JeepHut

Reply
Unread 07-29-2005, 10:40 AM   #1
Paul Mafinga
Registered User
 
Join Date: Jul 2005
Location: Tukwila, WA.
Posts: 12
can I put a 4.0 head on a 232?

I want to do the 4.0 convrsion to my 232 if I can. Or am I crazy?

Paul Mafinga is offline   Reply With Quote Quick reply to this message
Unread 07-29-2005, 03:54 PM   #2
Paul Mafinga
Registered User
 
Join Date: Jul 2005
Location: Tukwila, WA.
Posts: 12
Anyone ever heard of this? This is what I have been able to gather:

1. In 1971 the 232's deck height was increased and the stroke was lengthened to make the 258. All parts from the 258 and 232 are interchangable.

2. in 1987 the 258 block was slightly widened, bored over and de-stroked to create the 4.0L. All parts from the 258 and 4.0 are interchangeable (post 1987) and only a slight modification is needed to put the 4.0L head on a pre 1987 258.

My conclusion:

If the 258 and 232 head is the same from 1971 to 1986, and the 4.0L head can be modified to fit the pre 1987 258's, then should it not also fit the 232 with the same modification?

Am I right? Is this a smart upgrade for my 232? Has anoyone heard of this being done before?
Paul Mafinga is offline   Reply With Quote Quick reply to this message
Unread 07-29-2005, 04:08 PM   #3
speedracer2536
Registered User
 
Join Date: Jun 2005
Location: dripping springs,tx
Posts: 359
isnt the 232 the 4..0l motor or am i wrong
speedracer2536 is offline   Reply With Quote Quick reply to this message
Unread 07-29-2005, 04:09 PM   #4
Paul Mafinga
Registered User
 
Join Date: Jul 2005
Location: Tukwila, WA.
Posts: 12
No, the 232 is the 1960's AMC 3.8. Im not sure when they stopped making them, but I know they still were around in the early 70's
Paul Mafinga is offline   Reply With Quote Quick reply to this message
Unread 07-30-2005, 11:23 AM   #5
gumcrew2
Registered User
1991 XJ Cherokee 
 
Join Date: Oct 2004
Location: Denver, CO
Posts: 1,184
I'm pretty sure it would sit relatively close but not perfectly. Where did you get a 232 that still runs? lol.
__________________
"Nitrous? So is that like viagra for your Jeep?" -mom

"I flopped it"
gumcrew2 is offline   Reply With Quote Quick reply to this message
Unread 07-30-2005, 01:31 PM   #6
gosupes
Registered User
1986 CJ7 
 
Join Date: Jun 2004
Location: Monroe, WA
Posts: 1,541
I think it's been done. There was someone on the board, or maybe CJ Offroad or Jeeps Unlimited forum. Do a search, I think it was about 4 months ago.
__________________
1986 CJ7, 4.2 w/4.0 head, TFI-HEI hybrid ignition, Clifford manifold w/Holley 390 w/cold air intake, OBA, 4.5" lift, Woody CV shaft and Tattons in front, 4.10 gears - lunchbox in front, Truetrac in the back, twin-sticked, blower upgrade for running topless, trying to keep it simple.

It's just a Jeep, and if you don't wheel it once in a while, it's not even that.
gosupes is offline   Reply With Quote Quick reply to this message
Unread 07-31-2005, 04:41 PM   #7
Paul Mafinga
Registered User
 
Join Date: Jul 2005
Location: Tukwila, WA.
Posts: 12
The 232 is in a 1966 Rambler Classic 2 Door Hardtop. The car and the engine both only have 60k miles on them, so they both are in amazing shape. I dont want to do any "major" changes to the car or engine since it is in all original condition, and I think the 4.0 conversion would be a good way to get some HP out of it, while not modifying it too much. I also picked up a 2BBL intake (off a 80's 258) to bolt a MC2100 onto it, and the TFI ignition system upgrade (it's all on the way, in the mail). If those two upgrades dont give me the extra power I'm hoping for, then the 4.0 conversion is going to be next (and exhaust to go with it).

Thanks for the links to those other sites. It looks like it has been done, and I look forward to doing it myself.
Paul Mafinga is offline   Reply With Quote Quick reply to this message
Unread 07-31-2005, 05:06 PM   #8
jagriffinsf
Registered User
1997 TJ Wrangler 
 
Join Date: Oct 2004
Location: St. Louis
Posts: 152
Paul,

Cool project! There are also a couple of yahoo groups that you should check out. They are full of experts on AMC sixes. Unfortunately, I only have one of the addresses off hand, but if you search for amc six the other one should be easy to find. The first one revolves primarily around the 4.0 and 258, but there are some big rambler guys on there as well. Check it out....

http://autos.groups.yahoo.com/group/strokers/

Good luck,

John
jagriffinsf is offline   Reply With Quote Quick reply to this message
Unread 07-31-2005, 05:23 PM   #9
Paul Mafinga
Registered User
 
Join Date: Jul 2005
Location: Tukwila, WA.
Posts: 12
Nice huh?



Paul Mafinga is offline   Reply With Quote Quick reply to this message
Unread 07-31-2005, 06:31 PM   #10
jagriffinsf
Registered User
1997 TJ Wrangler 
 
Join Date: Oct 2004
Location: St. Louis
Posts: 152
That is sweet! It's in such good shape!
jagriffinsf is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Thread Tools


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.