more mopar 340

Old 08-04-2007, 02:39 PM
  #1  
jeffw59
Junior Member
SHOW GUEST
Thread Starter
 
Join Date: May 2007
Posts: 6
Default more mopar 340

more ?'s about my son's duster--will the 727 & converter that is behind our 340 now work with a 360? i know a 360 is externally balanced,does this require an externally balanced converter?--also what is the significance of "j" heads?,the combustion chambers & valves are the same size,no one can seem to tell me what the majic "j" means
thx. Jeff
jeffw59 is offline  
Old 02-02-2008, 08:35 PM
  #2  
smallblockcuda
Junior Member
SHOW GUEST
 
Join Date: Dec 2007
Posts: 3
Default

Yes the converter needs to be balanced, A tranny shop charged me $25.00 a couple of years ago. The "J" head is the 340 4bbl head 72 and later, it is also the same head, casting #'s and all as the 360 4bbl head which was introduced in 72
smallblockcuda is offline  
Old 02-12-2008, 11:31 AM
  #3  
mopar1968
Senior Member
RACING JUNKIE
 
mopar1968's Avatar
 
Join Date: Dec 2006
Location: Abingdon,Virginia
Posts: 3,579
Default 340

Yes it will, contact summit b/m makes a flex plate for this, just done this very thing. part number bmm-10236
mopar1968 is offline  
Posting Rules
You may not post new threads
You may not 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


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service