Author Topic: Flywheel Interchange?  (Read 984 times)

Offline AMXguy

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Flywheel Interchange?
« on: February 19, 2010 - 12:46:54 PM »
My machine shop got all my stuff done so I can put it together and he told me my new 11" flywheel is off a 400.  he surfaced it and balanced everything up but I wanted to be sure this isn't going to be a problem putting it on a steel crank 440.
1970 R/T SE Challenger
 1970 Superbee
 1969 S code Mach 1
 1967  GTO




Offline Chryco Psycho

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Re: Flywheel Interchange?
« Reply #1 on: February 19, 2010 - 01:26:51 PM »
400s were all internally balanced except the 71 so likely it would not balance properly on a steel crank 440 

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Offline Moparal

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Re: Flywheel Interchange?
« Reply #2 on: February 19, 2010 - 01:31:33 PM »
If he balanced it neutral, then it's balanced...340 318  361 383 413  426 440 all with neutral balance, And I am assuming that the readers do already know im talking about 6 bolts and specfic yrs.  Neil, it would balance if the machinist did balance it to neutral. No matter what

Offline Chryco Psycho

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Re: Flywheel Interchange?
« Reply #3 on: February 19, 2010 - 01:37:38 PM »
it would need to have the holes welded in to balance it up , if it was balanced as an assembly it will be fine 

Challenger - You`ll wish You Hadn`t

Offline AMXguy

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Re: Flywheel Interchange?
« Reply #4 on: February 19, 2010 - 02:04:22 PM »
No welding done, but a bunch of holes were drilled. I guess I better call him and see how he balanced it but I would think he did it as an assembly. sounds like there is no problem other than balance though right?
1970 R/T SE Challenger
 1970 Superbee
 1969 S code Mach 1
 1967  GTO

Offline Chryco Psycho

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Re: Flywheel Interchange?
« Reply #5 on: February 19, 2010 - 04:35:50 PM »
no other issues , there are 2 flwheels 1 130 tooth & the other is 143  , both take an 11" clutch but they are totally different requiring different pressure plates & belhousings

Challenger - You`ll wish You Hadn`t

Offline Changin Gears

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Re: Flywheel Interchange?
« Reply #6 on: February 19, 2010 - 05:19:58 PM »
An 11" flywheel for a 400 would have to have been originally out of a truck.


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Offline AMXguy

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Re: Flywheel Interchange?
« Reply #7 on: February 19, 2010 - 05:30:19 PM »
It is a 143 tooth, I have no idea what it came out of but it looked like new. would being out of a pick up matter?
1970 R/T SE Challenger
 1970 Superbee
 1969 S code Mach 1
 1967  GTO

Offline Moparal

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Re: Flywheel Interchange?
« Reply #8 on: February 19, 2010 - 05:44:49 PM »
10.95 scallop should be it  with 130 tooth

Offline Chryco Psycho

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Re: Flywheel Interchange?
« Reply #9 on: February 19, 2010 - 06:10:19 PM »
so what belhousing do you have , is it cast iron or alum , the cast iron housing is the correct one , there were some 400 4spd cars built as well

Challenger - You`ll wish You Hadn`t

Offline AMXguy

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Re: Flywheel Interchange?
« Reply #10 on: February 19, 2010 - 06:41:59 PM »
I have the iron 2626 bell.
1970 R/T SE Challenger
 1970 Superbee
 1969 S code Mach 1
 1967  GTO