AMC 304 vs 360 vs 401 - Differences? -
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 > Models > Jeep CJ Forum > AMC 304 vs 360 vs 401 - Differences?

Tactical Recovery Equipment Soft Shackles!!!50% Off Sale at KrawlOff-Road.com50" LED CREE Light Bar Pair With Wiring Kit

Unread 08-29-2011, 08:31 AM   #1
Senior Member
Erik719's Avatar
1983 CJ7 
Join Date: May 2008
Location: Arlington, VA
Posts: 848
AMC 304 vs 360 vs 401 - Differences?

So as I understand it all three of these engines are based on the same block and share many parts (i.e. alt, intake manifold, exhaust manifolds, PS, etc.).

So what makes them different? Bore and stroke? Heads? Could you bore and stroke a 304, put bigger heads on it and turn it into a 401?

'80 CJ7 - Gone but not forgotten
'83 CJ7 - Donkey
Erik719 is offline   Reply With Quote Quick reply to this message
Unread 08-29-2011, 09:16 AM   #2
Registered User
1982 CJ7 
Join Date: Feb 2010
Location: FL.
Posts: 362
All Gen 3 engines are the same basic design and external dimensions but different CASTINGS with different internal dimensions and wall thickness as well as different cranks and rods (390+401 were forged)
This link will tell you all the basics.............OCG
Oldcraneguy is offline   Reply With Quote Quick reply to this message

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.
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:


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. is not in any way associated with Jeep or the Chrysler Corp.