SFI Flexplates
#2655172
05/13/19 09:53 PM
05/13/19 09:53 PM
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Joined: Dec 2008
Posts: 202
Illinois
gearhead01
OP
enthusiast
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OP
enthusiast
Joined: Dec 2008
Posts: 202
Illinois
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Hey all:
What is your choice of an SFI rated flexplate?
The "cross" shape like an TCI, or the round style such as the B&M?
Bigger question, any issues with either.
Thanks in advance.
John
1971 Satellite Sebring Plus - 14.46 @ 95.43
1977 Road Runner - N/B 11.02@ 119 Drag Radials
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Re: SFI Flexplates
[Re: gearhead01]
#2655176
05/13/19 10:04 PM
05/13/19 10:04 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Every plate I have owned except a round B&M have been the MP ones.. the reason I had to use the B&M one was to make my engine balance with it... all the others have MP 
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Re: SFI Flexplates
[Re: AndyF]
#2655252
05/14/19 08:18 AM
05/14/19 08:18 AM
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Joined: Jan 2003
Posts: 13,354
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,354
Marion, South Carolina [><]
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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
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Re: SFI Flexplates
[Re: an8sec70cuda]
#2655256
05/14/19 09:15 AM
05/14/19 09:15 AM
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Joined: Dec 2005
Posts: 11,524
Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,524
Fulton County, PA
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The MP stock shaped SFI plates that I had are (were) solid without the cutouts. Had 7/16 holes already too IIRC. ![[Linked Image]](https://static.summitracing.com/global/images/prod/mediumlarge/dcc-4529751_w_ml.jpg)
Last edited by CMcAllister; 05/14/19 09:20 AM.
If the results don't match the theory, change the theory.
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Re: SFI Flexplates
[Re: hemi-itis]
#2655291
05/14/19 10:35 AM
05/14/19 10:35 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Thanks guys,I didn't remember That Ma made an SFI.Was it any different than the stocker? They look identical except for the SFI sticker... they have the 7/16 holes in them
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Re: SFI Flexplates
[Re: hemi-itis]
#2655297
05/14/19 10:50 AM
05/14/19 10:50 AM
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Joined: Dec 2005
Posts: 11,524
Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,524
Fulton County, PA
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Thanks guys,I didn't remember That Ma made an SFI.Was it any different than the stocker? Not swiss cheesed. ![[Linked Image]](http://store.440source.com/images/1011059.jpg)
If the results don't match the theory, change the theory.
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Re: SFI Flexplates
[Re: JCFcuda]
#2656679
05/18/19 08:25 PM
05/18/19 08:25 PM
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Joined: Dec 2008
Posts: 202
Illinois
gearhead01
OP
enthusiast
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OP
enthusiast
Joined: Dec 2008
Posts: 202
Illinois
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Thank you everyone for your replies.
John
1971 Satellite Sebring Plus - 14.46 @ 95.43
1977 Road Runner - N/B 11.02@ 119 Drag Radials
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Re: SFI Flexplates
[Re: 68roadrunner]
#2656718
05/18/19 11:12 PM
05/18/19 11:12 PM
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Joined: Aug 2003
Posts: 43,118
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,118
Bend,OR USA
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my mopar sfi one cracked from the converter bolt hole out to the edge, breaking the whole end of the ear off. went to the b&m so more metal beside holes, maybe its better not sure yet B&M had a bad batch of their neutral balanced 6 bolt flex plates that had one of the smaller diameter(11 inch) 7/16 converter holes off far enough that one bolt wouldn't go in with out work  I had several racer friends who had that problem  That being said I just took in a used one for trading some labor with a friend and customer, I hope it isn't one of the bad ones 
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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