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08-29-2016, 11:09 AM
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#1 |
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Registered User
Join Date: Aug 2015
Location: Scotland
Posts: 737
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Fitting a Flex Plate
Im going to be putting a 454 into my truck fairly soon but its the engine coming out my dad's Cobra and as he has a manual box and Im going auto I need a flexplate.
Ive never bought one before and Im keen to know if there is anything that I need to look out for. For example I read that on a 454 the flexplate should be paired with the harmonic balancer because its externally balanced. Is that correct and is it easy enough to get a supplier to supply the parts as a pair. Equally what do I need to look out for in a torque converter? All very new to me as Ive always run manual transmission in the past. There is loads of info out there on what you can do, Im just unsure as to what I should do! |
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08-29-2016, 11:34 AM
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#2 |
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Registered User
Join Date: Jun 2013
Location: joshua tree ca.
Posts: 1,484
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Re: Fitting a Flex Plate
YES 454 is externally balanced just get a new 454 flex plate THAT'S ALL you need
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08-29-2016, 11:00 PM
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#3 |
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60-66 Nut
  Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,252
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Re: Fitting a Flex Plate
What torque converter to run will depend on the cam that is in the engine.
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08-31-2016, 05:05 AM
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#4 |
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Registered User
Join Date: Aug 2015
Location: Scotland
Posts: 737
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Re: Fitting a Flex Plate
Im not sure whats currently in it, though I know its not standard. I do know its also not supper hot. I think its a fairly mild upgrade but I will find out when I see my dad next.
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09-13-2016, 10:36 AM
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#5 |
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Registered User
Join Date: Jul 2015
Location: Springfield MO
Posts: 27
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Re: Fitting a Flex Plate
If this engine came out of a Cobra kit car make sure when the engine was built they didnt't internally balance it. Check the balancer and see if it has a cutout in one side. If it has a cutout it is externally balanced if not it is internally balanced. You can go to any parts store and get a flexplate, once you know what you need. You do not need a new balancer.
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