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What flex plate???

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Old 02-05-2007, 09:40 PM
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What flex plate???
What is a good Flexplate for me to go with? How many teeth does it need??? set up in sig.
Steve
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Old 02-05-2007, 09:53 PM
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jegs has a descent one 555-60153

if you just want a stock one let me know....other than that you nd a 153 tooth for 1pc. seal 86-up
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Old 02-06-2007, 12:02 PM
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I agree...Jegs has an SFI approved plate for less than a stock one costs.

Frank
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Old 02-06-2007, 03:37 PM
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Cool. That is the one I am going to buy.
Thanks guys,
Steve
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Old 03-06-2007, 01:41 PM
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How many bolts do I need to buy from GM? I am going with Part # 14088764.
Thanks,
Steve
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Old 03-06-2007, 03:05 PM
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what bolts? its cheaper to get the ARP's anyway
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Old 03-06-2007, 03:15 PM
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Originally Posted by mdacton
what bolts? its cheaper to get the ARP's anyway
Flexplate bolts. I searched it and found people are having problems with Arp ones. The head on them is too big and does not fit a socket well???
Steve
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Old 03-06-2007, 07:33 PM
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Originally Posted by snakeatinZ
Flexplate bolts. I searched it and found people are having problems with Arp ones. The head on them is too big and does not fit a socket well???
Steve
Yes, that is correct. The large 12-point heads on the ARP flex-plate bolts do not allow space for the socket between the crank hub lip. Get a new set of OEM (GM) flex-plate bolts. Also, use a thread locker and make sure the flex-plate isn't powder-coated.

WD
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Old 03-06-2007, 10:16 PM
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ARP came out with new ones that have smaller heads.
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Old 03-07-2007, 05:19 AM
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You realize that this is not an LT1 specific piece but is generic? If you have stock rotating assy., you can buy a flexplate that is a simple bolt on as it is already balanced against a stock bob weight. If it's for the combo in your sig, which looks like a non-stock setup, it is going to need to be final balanced. You probably already know this, just pointing it out to those reading who think the piece would be a simple bolt-on.

Rich
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Old 03-07-2007, 06:17 AM
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Originally Posted by rskrause
You realize that this is not an LT1 specific piece but is generic? If you have stock rotating assy., you can buy a flexplate that is a simple bolt on as it is already balanced against a stock bob weight. If it's for the combo in your sig, which looks like a non-stock setup, it is going to need to be final balanced. You probably already know this, just pointing it out to those reading who think the piece would be a simple bolt-on.

Rich
Rich, whenever you have something to say I am all ears. Over the years you have tought me alot about these cars. My motor has a stock crank, with forged Speed Pro pistons. I need the flexplate for the Machine shop. This weekend they are going to get everthing I have to assemble the long block. oooh happy day!!!!!!
Steve
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Old 03-07-2007, 06:38 AM
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Originally Posted by snakeatinZ
Rich, whenever you have something to say I am all ears. Over the years you have tought me alot about these cars. My motor has a stock crank, with forged Speed Pro pistons. I need the flexplate for the Machine shop. This weekend they are going to get everthing I have to assemble the long block. oooh happy day!!!!!!
Steve
Great feeling!

A "generic" flywheel like that will usually have a large balance weight. The machine shop will balance it against your specific assembly by drilling shallow holes in the weight to remove the necessary amount.

Rich
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