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4L80e... flexplate question

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Old 03-24-2013, 08:01 AM
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Default 4L80e... flexplate question

I've done 2 4L80e swaps so far, one in my 99 RCSB 4.8 and one in my 2004 GTO with a built LQ4 and LS1 crank.

I'm getting ready to do a swap now in a Mustang with a 2003 LQ4. What freakin flexplate do I need for this thing? I've searched high and low and I can not find a definitive answer. Do I need a "LS1 to 4L80e" flexplate with the crank spacer??? Do I not need a crank spacer and need the dished plate like the TCI 399754? I'm so confused and I need to get this **** ordered.

From what I've found, I think it was only the EARLY LQ4s that had the extended crank and therefore those are the only ones that DON'T need the crank spacer. Since mine is a 2003 I think I DO need the spacer and then just any LS1 to 4L80e flexplate will work.

So basically if I order the following am I good to go?

Hughes Performance LS1 Flexplate Adapters HP3795
Hughes Performance Heavy-Duty Flexplates HP4004X-EBP


Can someone please clarify for me so I can order parts today?

Thanks!

Adam
Old 03-24-2013, 08:18 AM
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What converter are you going to use?
Old 03-24-2013, 08:19 AM
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Stock 4L80e converter for now. Not a "conversion" converter.
Old 03-24-2013, 08:56 AM
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Only the iron headed LQ4s had the extended crank .

You just need a stock flex plate for a 2003 LQ4 /4L80e , shouldn't be hard at all to get .

I believe 02' and up flex plate from 6.0/80e will work for you.

Sad to hear its going in a mustang but that's the only way to make them fast .
Old 03-24-2013, 09:13 AM
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From everything i have gathered, if you have the stock flexplate, and stock converter you will need the crank spacer.
Old 03-24-2013, 09:24 AM
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Originally Posted by Gadgetized
From everything i have gathered, if you have the stock flexplate, and stock converter you will need the crank spacer.
Yeah , if he gets the stock flex plate setup for the 03 6.0/80e combo he will be set . I sold the stock flex plate I had from my 03 LQ4 but IIRC it had the spacer on the flex plate . Please correct me if I'm wrong it's been a while since I've seen it .
Old 03-24-2013, 10:17 AM
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I want an SFI approved one
Old 03-24-2013, 05:02 PM
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anyone? I want to order tonight.
Old 03-24-2013, 06:04 PM
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Get a 80e flexplate like a TCI, they come with the spacer.
Old 03-24-2013, 06:29 PM
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TCI 399754 is the SFI plate you are looking for. It does not need the crank spacer, the flexplate has it built in. You will need a converter pilot extender, and I think it comes with the TCI flexplate.

Chris


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