360 or 350 - 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 > Models > Jeep CJ Forum > 360 or 350

Introducing the CUPHOLSTER @ OCONEE OFF ROAD 706 534 9955Thanksgiving holiday sale in effect @ oconeeoffroad.comBlack Friday- Cyber Monday Deals at jeepHut

Reply
Unread 07-03-2013, 02:05 PM   #1
DanTheMan01
Registered User
1978 CJ7 
 
Join Date: May 2012
Location: Killeen, TX
Posts: 95
360 or 350

I have a 78 CJ7 with a 304. I really like the 304 and I love the sound of it, but I just don't think I can get the power out of it that I want. I want to buy an AMC 360 or a Chevy 350 that I can have rebuilt. I already have the Turbo 400 tranny so the 350 would be easy, but I kind of want to stay with the AMC brand. What do you guys think?

Any comments are appreciated.

Here is a pic just because I know you guys like them.

123.jpg  
DanTheMan01 is offline   Reply With Quote Quick reply to this message
Unread 07-03-2013, 04:21 PM   #2
82JeepCJ7
Registered User
1982 CJ7 
 
Join Date: Jun 2010
Location: Marysville, WA
Posts: 4,978
To go with a GM motor, you would have to swap in a different transmission. The Turbo 400 in there now has a AMC bellhousing pattern. I would build a AMC 360 and drop in there. Nothing to change. Put a HEI ignition system on it, a good carb (I run a Quadrajet) and wheel it. Too much stuff has to be changed to put a chebby motor in there.
__________________
Beat it to fit, paint it to match!

Wheel, Wrench, Repeat.
82JeepCJ7 is offline   Reply With Quote Quick reply to this message
Unread 07-03-2013, 04:23 PM   #3
justinwatts8282
Registered User
1985 CJ7 
 
Join Date: Feb 2013
Location: fayetteville, NC
Posts: 61
a 360 will be much easyer to complete with your current set up i agree
justinwatts8282 is offline   Reply With Quote Quick reply to this message
Unread 07-03-2013, 06:33 PM   #4
jp360cj
Registered User
1977 CJ7 
 
Join Date: Oct 2007
Location: Greenville, North Carolina
Posts: 1,754
To go with the 350, you'll need a new transmission which means a new tcase and a centered rear axle. You might could cut the bell off a GM TH400 and graft it to yours. That may not be an option, just trying to think outside the box.

Rebuilding an AMC360 isn't cheap, so I would try to find a running one in decent shape. its a direct bolt in from the 304.
__________________
77 CJ-7- AMC 360, Edelbrock cam, MC2100, Fenderwells, CJ T18/D20, Chevy D44/EB 9" rear, Trutrac f/r, 4.11, SOA, 1.25 lift shackles, 35x12.50 BFG KM2s, Shackle Reversal
jp360cj is offline   Reply With Quote Quick reply to this message
Unread 07-04-2013, 10:53 AM   #5
DanTheMan01
Registered User
1978 CJ7 
 
Join Date: May 2012
Location: Killeen, TX
Posts: 95
Huh... I just assumed at a Turbo 400 bolted right up to a 350. I agree the 360 is probably a better option. Thanks guys. Now I just have to find one...
DanTheMan01 is offline   Reply With Quote Quick reply to this message
Unread 07-04-2013, 03:14 PM   #6
CSP
Registered User
 
Join Date: Aug 2002
Location: Colorado
Posts: 12,620
A Turbo 400 with the Chevy bolt pattern and bellhousing shape will bolt up to the 350. The one you have has the AMC bellhousing shape and bolt pattern. All TH400s are not the same.

You can take the tailhousing and output shaft from an AMC TH400 and swap them into a Chevy TH400 and keep your existing transfer case and axles. This does require complete disassembly of both transmissions though.
CSP is offline   Reply With Quote Quick reply to this message
Unread 07-04-2013, 03:32 PM   #7
cjsteven
Registered User
1981 CJ7 
 
Join Date: Oct 2007
Location: Belgium
Posts: 34
I d go for the 360. I replaced my tired 360 for a new 350 and it just doesnt feel the same. On paper the 350 is beter but my heart doesn t agree. My other cj still has a 360 and that s the one I like to drive the most.
cjsteven is offline   Reply With Quote Quick reply to this message
Unread 07-04-2013, 03:45 PM   #8
Dngrs1
Registered User
1979 CJ7 
 
Join Date: May 2009
Location: Mohave Valley,AZ
Posts: 809
I would look for a 401. There are so many variants of the Chevy 350 made that you could, in theory, end up with one that has less HP than your 304. If you can't find a 401 then I agree with the 360.
__________________
I would rather have a tool I don't need, than need a tool I don't have.
Dngrs1 is offline   Reply With Quote Quick reply to this message
Unread 07-04-2013, 05:00 PM   #9
REDnBLUES
Registered User
1977 CJ7 
 
Join Date: Dec 2008
Location: Texas
Posts: 195
Why not just rebuild the 304 and add heads, intake, headers and be done. It would likely be cheaper and easier for sure.
__________________
1977 CJ7 - LT1/700R4 Project
2013 JK Sahara - Stock
REDnBLUES is offline   Reply With Quote Quick reply to this message
Unread 07-04-2013, 05:13 PM   #10
swatson454
Web Wheeler
 
swatson454's Avatar
1983 CJ7 
 
Join Date: May 2009
Location: Dripping Springs, TX (soon)
Posts: 4,989
Quote:
Originally Posted by Dngrs1 View Post
...There are so many variants of the Chevy 350 made that you could, in theory, end up with one that has less HP than your 304...
If you find one, plug the rest of the spark plug wires in.

Just some cocktail-induced humor


Shawn
__________________
Live in a way that those who know you but don't know God will come to know God because they know you.
swatson454 is online now   Reply With Quote Quick reply to this message
Unread 07-04-2013, 06:56 PM   #11
mtndew1
Registered User
1976 CJ7 
 
Join Date: Mar 2009
Location: Chandler, AZ
Posts: 111
Quote:
Originally Posted by REDnBLUES View Post
Why not just rebuild the 304 and add heads, intake, headers and be done. It would likely be cheaper and easier for sure.
It's not worth rebuilding a 304, I know I did it. Yes you can get ok power out of it but not even close to a 360/401 for the same price. Buy a 360 or a 401 if you are going to rebuild one and be done with it.

If you are going to go with the 350 I have a tailshaft from an th400 (amc) style you can have if you pay shipping from AZ. I rebuilt mine but put in an aftermarket tail shaft to link it up to a Dana 300.
__________________
1976 Jeep CJ7 - Build in progress
mtndew1 is offline   Reply With Quote Quick reply to this message
Unread 07-04-2013, 07:00 PM   #12
Neuner-9R
Registered User
1985 CJ7 
 
Join Date: Nov 2012
Location: San Antonio, Texas
Posts: 309
Nice pic. Is that desert tan?
Neuner-9R is offline   Reply With Quote Quick reply to this message
Unread 07-05-2013, 02:23 AM   #13
REDnBLUES
Registered User
1977 CJ7 
 
Join Date: Dec 2008
Location: Texas
Posts: 195
Quote:
Originally Posted by mtndew1 View Post
It's not worth rebuilding a 304, I know I did it. Yes you can get ok power out of it but not even close to a 360/401 for the same price. Buy a 360 or a 401 if you are going to rebuild one and be done with it.

If you are going to go with the 350 I have a tailshaft from an th400 (amc) style you can have if you pay shipping from AZ. I rebuilt mine but put in an aftermarket tail shaft to link it up to a Dana 300.

I'll agree that the 360-401 will put out more power - I also rebuilt my 304 several years ago. But you still have to find a decent 360 or 401 to start. You have to factor that expense in too. If you have a buddy willing to give it to you then your okay but everone these days seems to think they and the 401 are forged from gold or something.
__________________
1977 CJ7 - LT1/700R4 Project
2013 JK Sahara - Stock
REDnBLUES is offline   Reply With Quote Quick reply to this message
Unread 07-05-2013, 07:49 AM   #14
jcal73
Web Wheeler
 
jcal73's Avatar
1979 CJ5 
 
Join Date: Nov 2007
Location: Alabama Roll Tide
Posts: 1,076
Make a list of all three projects, Total the price of each and then you can weigh your options.
I wanted to go AMC, but there are not many to be had in my neck of the woods.

Hope that helps!
Jeff
jcal73 is offline   Reply With Quote Quick reply to this message
Unread 07-07-2013, 10:38 AM   #15
DanTheMan01
Registered User
1978 CJ7 
 
Join Date: May 2012
Location: Killeen, TX
Posts: 95
Quote:
Originally Posted by Neuner-9R
Nice pic. Is that desert tan?
That is a crappy Auto Zone Bedliner the PO put on. I do kind of like the color but he did a poor job putting it on.
DanTheMan01 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






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.