Hi Mike, I think you are indeed confusing aftermarket modifications with factory equipment. As far as I know, the only 440's with external balance were the 6 pack engines, and later cast crank engines. The transmissions with the 5 clutch direct drum and wide band were 67-71 426 Hemi cars. They probably had the 5.0 lever too. Most others had the 3.8 lever. The converter in the Hurst was likely a 12 inch unit, as an 11 would cause to much slippage with a 323.1 axle ratio. The HP automatics in Dodge and Plymouth with steep gears no doubt had the 11 inch converter. Unlike the early cast iron TF, the later aluminum 727 has plenty of aftermarket parts to make it into anything you like. I think 5.0 levers and big drums are over kill in our 300's. The 5.0 lever by itself will make for some pretty harsh street driving. With the shift kits available, it's really not necessary. Don Verity Rhode Island I believe that all Mopars equipped with the 440 HP engines of the '70 & '71 varieties probably had the matching 727 trans to go with it. If I remember correctly it had an 11" externally balanced converter (to match the vibration dampner on the engines with the 6 pack style rods), an additional clutch and steel in the front clutch pack with a different arrangements of springs and or less springs than a standard unit, and I think a wider kickdown band with either a 4.2 or 5.0 ratio lever. I may be mixing up some oem details with aftermarket upgrades but hopefully someone who's built some of these units can straighten up some of my recollections. Perhaps Don Verity? Mike Laiserin Freezing in Phoenix tonight @ 39 degrees In a message dated 12/23/2009 12:36:36 P.M. US Mountain Standard Tim, foxmotor@xxxxxxxxxxx writes: To all fellow Hurst owners, I've been wondering this for a while.......I've been wondering this for a while.......<WBR>.what EXACTLY is the difference between a "standard" production 727 trans and one converter, better clutches, higher shift points. So my question is what makes a Hurst transmission different form a standard unit? Thanks and Merry Christmas! Rick __________________________________________________________ Hotmail: Free, trusted and rich email service. _http://clk.atdmt.http://clk.http://clkhttp://clk_ (http://clk.atdmt.com/GBL/go/171222984/direct/01/) [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: Chrysler300-digest@xxxxxxxxxxxxxxx Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/