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390 flexplate ID |
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easydean 
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Joined: Sep/26/2010 Location: West Fargo, ND Status: Offline Points: 1590 |
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 Topic: 390 flexplate IDPosted: Dec/05/2016 at 6:17pm |
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Can anyone tell me if these are 390 flexplates?
 
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Rebel Machine
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Posted: Dec/05/2016 at 6:50pm |
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The bottom two look like they are.
-Steve- |
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tufcj
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Posted: Dec/05/2016 at 7:02pm |
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The bottom 2 are borg-warner flexplates for the early flat crank. The weights look like they would be 390. I still wouldn't use them without having the assembly balanced. They could also be 70 390, or 71-72 360.
The upper one looks like a TF727 flexplate for the later flanged crank. Bob tufcj |
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69 AMX
74 Javelin AMX 67 Rogue If you need a tool and don't buy it... you'll eventually pay for it... and not have it. Henry Ford |
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purple72Gremlin
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Posted: Dec/05/2016 at 7:07pm |
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Bottom ones are BW flexplates
I will admit that I dont know what a 390 weight looks like....... Top is for a TF.
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GnipGnop4
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Posted: Dec/07/2016 at 2:47pm |
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Here is the flexplate off my '69 390 AMX motor. Weight looks the same as the ones in your pictures.
 
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IdahoSpud
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Posted: Dec/08/2016 at 12:52pm |
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I am not trying to hijack your thread Dean but I have a flexplate I can't ID. Thanks to this thread I was able to ID the one with 390 written on it.
The black one appears to be the same but has a larger hole in the center. Is it 390 as well or can it be a 360?  |
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1966 Rambler Rogue
1980 Avanti 383 Stroker 1957 Chev BelAir 2 dr HT 327 Selling 1986 Jeep Comanche 4x4 |
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401MATCOUPE
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Posted: Dec/08/2016 at 1:43pm |
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Moe, the top black one is someone attempt to make a BW trans/flex plate adapt to a step flange crank....usually ended up with balancing problems (vibration), I have parted out several cars that were pieced together like that and they were all non-runners.....guys gave up on them, not realizing it is not a Chevy and you can't just toss anything together and have it work.
Ross
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Ross K. Peterson
68X,GoPac,343,AT,52A(1stCar) 68X,GoPac,390,4sp,52A 69X,GoPac,390,4sp,64A 70X,GoPac,390,4sp,87A,8 70X,GoPac,390,4sp,BBO,8 70 Jav SST,390,AT,BSO 74MatX,401,AT,Prototype 74MatX,401,AT |
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IdahoSpud
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Posted: Dec/08/2016 at 1:58pm |
To the trash it goes! Thanks much Ross. |
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1966 Rambler Rogue
1980 Avanti 383 Stroker 1957 Chev BelAir 2 dr HT 327 Selling 1986 Jeep Comanche 4x4 |
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IdahoSpud
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Posted: Dec/08/2016 at 11:24pm |
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Well, while we are at it I have one other flexplate that was in the batch that I have no clue what it is for.
Is this possibly an AMC 360 flexplate? I have a 360 that had a 727 attached to it but I do not remember this being the flexplate? Does anyone know from the pictures?   |
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1966 Rambler Rogue
1980 Avanti 383 Stroker 1957 Chev BelAir 2 dr HT 327 Selling 1986 Jeep Comanche 4x4 |
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1970390amx
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Posted: Dec/08/2016 at 11:40pm |
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1970 390 4speed Bittersweet shadow mask AMX
1970 Amx missing most everything, or in a box |
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401MATCOUPE wrote: