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440-externally balanced #725507 06/15/10 10:42 PM 06/15/10 10:42 PM
Joined: May 2010 Posts: 177 NC S Sixt8Chrgr OP member
Sixt8Chrgr OP member S Joined: May 2010 Posts: 177 NC	If I put an externally balanced 440 in my 68 Charger with a torque flight can I use the stock torque converter that came with the 68 original torque flight that is in the car? I know I have to use an externally balanced flex plate but don't much from there. Dont much about automatics. Thanks,

Re: 440-externally balanced [Re: Sixt8Chrgr] #725508 06/16/10 01:49 AM 06/16/10 01:49 AM
Joined: Feb 2010 Posts: 18,493 Granite Bay CA Kern Dog Striving for excellence
Kern Dog Striving for excellence Joined: Feb 2010 Posts: 18,493 Granite Bay CA	The external balance of the last years of the 440 needed both : The correct harmonic balancer AND weighted torque converter. Since you want to retain the older non weighted '68 converter, you have 2 options: You can have the correct weight balance added to your '68 converter OR get the B&M flexplate with the balance offset factored in. I would have the converter modified. A trans shop can either do it or recommend a source. It can be done for less than $50.

Re: 440-externally balanced [Re: Kern Dog] #725509 06/16/10 07:01 AM 06/16/10 07:01 AM
Joined: Jan 2003 Posts: 25,200 Upper Midwest M MoparforLife Too Many Posts
MoparforLife Too Many Posts M Joined: Jan 2003 Posts: 25,200 Upper Midwest	Quote: The external balance of the last years of the 440 needed both : The correct harmonic balancer AND weighted torque converter. Since you want to retain the older non weighted '68 converter, you have 2 options: You can have the correct weight balance added to your '68 converter OR get the B&M flexplate with the balance offset factored in. I would have the converter modified. A trans shop can either do it or recommend a source. It can be done for less than $50. Use both and you willhave no problems at - been done a kazillion times.

Re: 440-externally balanced [Re: MoparforLife] #725510 06/16/10 07:39 AM 06/16/10 07:39 AM
Joined: May 2010 Posts: 177 NC S Sixt8Chrgr OP member
Sixt8Chrgr OP member S Joined: May 2010 Posts: 177 NC	I suppose another option would be to buy a new externally balanced torque converter? I saw the flex plate on the B&M site. Thanks

Re: 440-externally balanced [Re: Sixt8Chrgr] #725511 06/16/10 07:39 AM 06/16/10 07:39 AM
Joined: Jan 2003 Posts: 13,374 Marion, South Carolina [><] an8sec70cuda I Live Here
an8sec70cuda I Live Here Joined: Jan 2003 Posts: 13,374 Marion, South Carolina [><]	Just get the B&M flexplate for the externally balanced 440 and be done with it. Then you're free to use whatever converter you want. Not to mention it's just a simple bolt in deal and easier than trying to find someone to weld on the weight in the correct spot on the converter. B&M 10238 if you have a forged crank ext. balance 440 B&M 10237 if you have a cast crank ext. balance 440 CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax

Re: 440-externally balanced [Re: an8sec70cuda] #725512 06/16/10 07:46 AM 06/16/10 07:46 AM
Joined: May 2010 Posts: 177 NC S Sixt8Chrgr OP member
Sixt8Chrgr OP member S Joined: May 2010 Posts: 177 NC	Thanks Chip

Re: 440-externally balanced [Re: MoparforLife] #725513 06/16/10 09:11 AM 06/16/10 09:11 AM
Joined: Mar 2007 Posts: 9,336 South-Central (Sebring), FL Commando1 master
Commando1 master Joined: Mar 2007 Posts: 9,336 South-Central (Sebring), FL	Quote: Use both and you willhave no problems at - been done a kazillion times. Flex plate and torque converter? Seems counter-intuitive.

Re: 440-externally balanced [Re: Commando1] #725514 06/17/10 12:21 PM 06/17/10 12:21 PM
Joined: Jan 2003 Posts: 75,051 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,051 U.S.S.A.	Quote: Quote: Use both and you willhave no problems at - been done a kazillion times. Flex plate and torque converter? Seems counter-intuitive. you might want to read this AGAIN ... Quote: The external balance of the last years of the 440 needed both : The correct harmonic balancer AND weighted torque converter. Since you want to retain the older non weighted '68 converter, you have 2 options: You can have the correct weight balance added to your '68 converter OR get the B&M flexplate with the balance offset factored in. I would have the converter modified. A trans shop can either do it or recommend a source. It can be done for less than $50.

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