Previous Thread
Next Thread
Print Thread
internal balance Q #2687377
08/13/19 05:43 PM
08/13/19 05:43 PM
Joined: Nov 2003
Posts: 35,411
Lincoln Nebraska
R
RapidRobert Offline OP
Circle Track
RapidRobert  Offline OP
Circle Track
R

Joined: Nov 2003
Posts: 35,411
Lincoln Nebraska
65 D100 /6. swapping in a BB. Have the correct BB (early 60's I am assuming) hyd bell/wheel/ NP 435 granny 4 speed etc. I am assuming this 'wheel is internally balanced. I have a 400 & a 440 & the torque converters on both of em have the extra weights denoteing externally balanced (I am assuming). Is there any way I can get one of these engines to drop in as is or do I need to find an earlier internally balanced 440? Thank you for your time.


live every 24 hour block of time like it's your last day on earth
Re: internal balance Q [Re: RapidRobert] #2687653
08/14/19 12:03 PM
08/14/19 12:03 PM
Joined: May 2003
Posts: 5,389
Downtown Roebuck Ont
Twostick Offline
master
Twostick  Offline
master

Joined: May 2003
Posts: 5,389
Downtown Roebuck Ont
Originally Posted by RapidRobert
65 D100 /6. swapping in a BB. Have the correct BB (early 60's I am assuming) hyd bell/wheel/ NP 435 granny 4 speed etc. I am assuming this 'wheel is internally balanced. I have a 400 & a 440 & the torque converters on both of em have the extra weights denoteing externally balanced (I am assuming). Is there any way I can get one of these engines to drop in as is or do I need to find an earlier internally balanced 440? Thank you for your time.


If they are externally balanced you will either have to get the flywheel modified or find a steel crank engine or install a steel crank in yours. Somebody used to make a weight that sandwiched between the crank and the flywheel but I'm not sure who made it or if it's still available.

Externally balanced engines also have a different harmonic balancer too just in case someone installed a different transmission in the past and didn't know there was a difference. Cast cranks usually aren't drilled properly for a pilot bushing either.

Kevin

Re: internal balance Q [Re: RapidRobert] #2687688
08/14/19 01:02 PM
08/14/19 01:02 PM
Joined: Jan 2003
Posts: 2,049
Oklahoma City
Jwilli500 Offline
top fuel
Jwilli500  Offline
top fuel

Joined: Jan 2003
Posts: 2,049
Oklahoma City
If you can get your hands the latest edition of Mopar Action, there is a tech article about this very thing...
It gives a number of options one of which is mentioned above.

Last edited by Jwilli500; 08/14/19 01:04 PM.
Re: internal balance Q [Re: Jwilli500] #2687789
08/14/19 07:01 PM
08/14/19 07:01 PM
Joined: Nov 2003
Posts: 35,411
Lincoln Nebraska
R
RapidRobert Offline OP
Circle Track
RapidRobert  Offline OP
Circle Track
R

Joined: Nov 2003
Posts: 35,411
Lincoln Nebraska
Twostick, the 400/440 both appear to be unmolested engines & have the ext balance pads on their respective torque converters. Jwilli I just called Barnes & Noble & they have the Oct issue on the shelf so I will pick it up tomorrow. Now to find a good steel crank 440 (I am assuming). thanks guys!


live every 24 hour block of time like it's your last day on earth
Re: internal balance Q [Re: RapidRobert] #2688011
08/15/19 12:34 PM
08/15/19 12:34 PM
Joined: Jan 2003
Posts: 2,049
Oklahoma City
Jwilli500 Offline
top fuel
Jwilli500  Offline
top fuel

Joined: Jan 2003
Posts: 2,049
Oklahoma City
So your not going to use one of the externally balanced motors? Steel crank would be Internally ballanced.
Originally Posted by RapidRobert
Twostick, the 400/440 both appear to be unmolested engines & have the ext balance pads on their respective torque converters. Jwilli I just called Barnes & Noble & they have the Oct issue on the shelf so I will pick it up tomorrow. Now to find a good steel crank 440 (I am assuming). thanks guys!

Re: internal balance Q [Re: RapidRobert] #2688071
08/15/19 03:17 PM
08/15/19 03:17 PM
Joined: Jan 2003
Posts: 20,361
Rio Linda, CA
John_Kunkel Offline
Too Many Posts
John_Kunkel  Offline
Too Many Posts

Joined: Jan 2003
Posts: 20,361
Rio Linda, CA
The flywheel external weight is the same for both the cast crank 400 and 440. Just drill the flywheel as in the lower diagram below and you're good to go.

440 Flywheel.jpg

I'm supposed to respect my elders, but its getting harder and harder for me to find one now.

Advertisement
Sponsored Link
Moparts Newest Topics
"The Surfers" - TF history
by topside. 09/19/19 05:39 PM
Cleaning seatbelts?
by lilcuda. 09/19/19 04:36 PM
2wd Dodge Sanborn ,Iowa
by bigdad. 09/19/19 04:32 PM
1967 Belvedere II 383 4 speed
by lilcuda. 09/19/19 04:21 PM
Moparts Recent Posts
"The Surfers" - TF history
by topside. 09/19/19 05:39 PM
Cleaning seatbelts?
by gtx6970. 09/19/19 05:32 PM
1967 Belvedere II 383 4 speed
by topside. 09/19/19 05:26 PM

Powered by UBB.threads™ PHP Forum Software 7.7.1