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#68777 11/18/2006 12:01 AM | Joined: Sep 2006 Posts: 26 Junior Member | | Junior Member Joined: Sep 2006 Posts: 26 | I've been searching for a while on google and the stovebolt site and I'm stumped. How do I tell the difference between an externally balanced flex plate for a 700R4 and an internally balanced flex plate? There are no numbers on the flex plate that I can find.
Thanks,
Brad | | |
#68778 11/18/2006 1:21 AM | Joined: Mar 2004 Posts: 3,068 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 3,068 | Most aftermarket plates are balanced just incase they end up going on a small block 400. There will be a metal weight welded to the plate that balances it,
Scott | | |
#68779 11/18/2006 1:26 AM | Joined: Sep 2006 Posts: 26 Junior Member | | Junior Member Joined: Sep 2006 Posts: 26 | Scott, the flex plate I have doesn't have any external weight welded to it. Every externally balanced flex plate picture that I could find that seemed to show a plate of some kind welded to it. I guess that would make the one I found was intended for an internally balanced engine.
Thanks for the reply.
Brad | | |
#68780 11/18/2006 1:44 AM | Joined: Jan 2006 Posts: 586 Shop Shark | | Shop Shark Joined: Jan 2006 Posts: 586 | It also could have large drill holes that are not drilled all the way through the flex plate.Material was removed on the "heavy side" to balance it.
Wanted Good Woman:
Must be able to cook , clean , sew , tune engines and polish trucks. Must have old Stovebolt and garage. Please send picture of old Stovebolt and garage.
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#68781 11/18/2006 3:02 AM | Joined: Sep 2006 Posts: 26 Junior Member | | Junior Member Joined: Sep 2006 Posts: 26 | On this particular flex plate all the holes are symetrical and there aren't any partial holes. I'm fairly certain its for an internal balanced engine. I'll look for a balanced flex plate when I stop in at my favorite salvage yard next week.
Thanks,
Brad | | |
#68782 11/18/2006 11:11 PM | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | The external balanced flexplate is not for the trans. The 400 small block & 86 up small blocks must use a flexplate with balance weights. They do not use the same one. No other small block should use the weighted flywheel regardless of trans. There are variations for big blocks also.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | |
#68783 11/19/2006 2:33 PM | Joined: Sep 2006 Posts: 26 Junior Member | | Junior Member Joined: Sep 2006 Posts: 26 | Wrenchbender, I'm building a 383 stroker which is why I'm looking for a 400 flex plate. I ran across a flex plate and it had no numbers so I wanted to make sure how to identify the differences.
Thanks,
Brad | | |
#68784 11/19/2006 4:34 PM | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | I think I would just get a new one. There is variations in the weight & position of the weight. If its not right you will have horrible vibrations.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | |
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