Tell me all the reasons to NOT use an AMC 360 -
LinkBack Thread Tools
post #1 of 8 Old 06-07-2015, 08:23 AM Thread Starter
Registered User
1984 CJ7 
Join Date: Apr 2013
Location: Pilot Mountain
Posts: 66
Tell me all the reasons to NOT use an AMC 360

My Jeep has a 727 auto trans and the 258 6-cyl. I am looking to upgrade the engine to a V8. I understand all the pluses of the SBC but I have read that the 360 is a pretty painless swap. Without getting into the benefits of the Chevy conversion, what are the negatives of the 360?

CJKevin1978 is offline  
Sponsored Links
post #2 of 8 Old 06-08-2015, 09:42 PM
Registered User
2006 TJ Wrangler 
Join Date: Oct 2006
Location: houston
Posts: 712
There are none
gremlinsteve is offline  
post #3 of 8 Old 06-09-2015, 05:28 AM
Registered User
jeepdaddy2000's Avatar
1971 CJ5 
Join Date: Jan 2002
Location: Eagle Point
Posts: 7,467
If you are sold on a V8 swap, the 360 is the easiest and cheapest upgrade you can get.
jeepdaddy2000 is online now  
post #4 of 8 Old 06-09-2015, 10:09 AM
Registered User
1983 CJ7 
Join Date: Jan 2013
Location: Lake Stevens
Posts: 978
Any AMC's will be fairly painless... 401 would be the only reason NOT to, but with there seeming to be more 304's and 360's floating around, I think it's a good choice as well for a v8 swap.

I guess it depends on budget, comfort of skills for any fab required, and your goals for the Jeep. If you have a 360 laying around already or have a modest budget, then do it; if you have some money to spend, want to go fuel injected, and want a more modern engine I like the GM 5.3 swaps personally.
dirtdudeaz is offline  
post #5 of 8 Old 06-09-2015, 02:50 PM
Registered User
1982 CJ8 
Join Date: Aug 2014
Location: Spanish Springs
Posts: 48
I couldn't think of a reason not to either. So I did it.
Attached Thumbnails
82_CJ8 is offline  
post #6 of 8 Old 06-21-2015, 12:58 PM Thread Starter
Registered User
1984 CJ7 
Join Date: Apr 2013
Location: Pilot Mountain
Posts: 66
I have found a 1980 J10 pickup with a 360 and a 727 trans (my CJ already has this trans). He has offered the engine at $600 (he has to take it out) or the whole vehicle at $1000. The bed and roof have been removed for another project but the truck is supposed to be drive-able. What other parts could be usable or easy to sell? I would probably keep the trans as a spare and I am assuming the transfer case is the same but I don't know that a this point.
CJKevin1978 is offline  
post #7 of 8 Old 10-23-2015, 05:44 PM Thread Starter
Registered User
1984 CJ7 
Join Date: Apr 2013
Location: Pilot Mountain
Posts: 66
After much flip-flopping over what to do for an engine, I finally picked up a 360 engine that is supposed to only need a distributor and water pump. The problem I think I may have is the flexplate/flywheel. This engine was from a manual trans-ed J10 and still has the clutch attached. Based on what I am reading I will need a different flex plate than what I now have on my 258.

New plates seem pretty cheap but is the bolt pattern on the torque converter universal? Does the trans and/or starter have any bearing on the selection of flex-plates?
CJKevin1978 is offline  
post #8 of 8 Old 10-30-2015, 04:23 AM
Registered User
Join Date: Jun 2013
Location: Centralia
Posts: 152
The only things bothering me about a L6 to V8 swap are motor mounts and the following drivetrain alignment. The ECM will be different but the whole thing is an easy tune. Only reason I wouldn't do a 360 is because my builds always seem to go the experimental route and I'd be tempted to use a 401 crank.

The transmission + starter + flexplate are kind of a 3-way marriage that depends on a few other electronic/hydraulic things.

Behind my 258 I would be using a 998 transmission and factory flexplate for the 258. Now that I'm replacing the 258 with a 4.0, the 998 needs to be modified and I intend to use an Z-338 plate to handle the crank trigger. Not sure how I'm supposed to approach this with a manual transmission but unless you're updating a 360 with electronic triggers and EFI, there's nothing to worry about.
DaemonForce is offline  

Quick Reply

Register Now

In order to be able to post messages on the forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


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.

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

Posting Rules  
You may post new threads
You may 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