1974 Mopar 360 machined with 340 core? - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 10-03-2009, 02:53 PM
Registered User
 
Join Date: Mar 2009
Location: winnipeg
Posts: 11
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
1974 Mopar 360 machined with 340 core?

I have a 1974 360 block purchased from a guy who says that since this block was built in 1974, which is the year after the 340's demise, this 360 was in fact a 340 core machined to 4.00" bore. This would mean that the walls of the 360 would be thicker than the standard 360 block. This would be a very good thing since I plan to build a stroker that requires boring, but is this a fact or a myth? Are there some 360's out there that where built using the discontinued 340's core?

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 10-03-2009, 05:45 PM
poncho62's Avatar
Out of the Loop Moderator
 
Last wiki edit: Streetbeasts links
Last journal entry: at car show
Last photo:
Join Date: Oct 2003
Location: Hanover, Ontario, Canada
Age: 62
Posts: 17,045
Wiki Edits: 5

Thanks: 24
Thanked 333 Times in 259 Posts
My understanding is that a 360 is a stroked 340....same bore, just longer stroke. It would be the same block
__________________
Ontario Rodders
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 10-03-2009, 05:48 PM
poncho62's Avatar
Out of the Loop Moderator
 
Last wiki edit: Streetbeasts links
Last journal entry: at car show
Last photo:
Join Date: Oct 2003
Location: Hanover, Ontario, Canada
Age: 62
Posts: 17,045
Wiki Edits: 5

Thanks: 24
Thanked 333 Times in 259 Posts
If you look here

http://www.allpar.com/mopar/318.html

a 360 has a 4" bore, whereas a 340 has a 4.04 bore, so if a 340 block was used it would gain about 7 or 8 cu in.......
__________________
Ontario Rodders
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 10-03-2009, 08:43 PM
Registered User
 
Join Date: Mar 2009
Location: winnipeg
Posts: 11
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by poncho62
My understanding is that a 360 is a stroked 340....same bore, just longer stroke. It would be the same block
No, a 340 has a 4.04 '' bore and a 360 has a 4.00'' bore.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 10-03-2009, 08:52 PM
Registered User
 
Join Date: Mar 2009
Location: winnipeg
Posts: 11
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by poncho62
If you look here

http://www.allpar.com/mopar/318.html

a 360 has a 4" bore, whereas a 340 has a 4.04 bore, so if a 340 block was used it would gain about 7 or 8 cu in.......
That is not my question though, the assumption is that instead of having a 4.04 " bore the 340 core was given a 4.00" bore making the walls 4 hundredths thicker on this 360. So I was asking if anyone has heard of this. A am asking this with no knowledge on how a block is manufactured, meaning, do they cast a block with a smaller bore then machine it to the required bore? (in this case the a 360 could be made from a 340 core as long as originally the block was produced with a bore smaller than 4") Again, this is just something I was told, and I am just treating it a myth.
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last 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 email address for yourself.
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.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Mopar 360 stroker build ed22 Engine 6 10-03-2009 02:43 PM
340 mopar motor questions tlopushansky Engine 4 02-09-2009 03:54 PM
Wayne Mopar 340 Conquest waynewl34 Introduce Yourself 3 04-15-2008 11:22 AM
How do I identify a 318, 340, 360 Mopar?? STATUTORY GRAPE Engine 4 04-19-2006 09:15 PM
Mopar 360 Motor Question........ STATUTORY GRAPE Engine 2 04-14-2006 10:10 PM


All times are GMT -6. The time now is 05:49 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.