Manual Transmission T56 | T5 | MN12 | Clutches | Hydraulics | Shifters

Will a T56 mount to a LQ4?

Old 11-03-2008, 01:04 AM
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Default Will a T56 mount to a LQ4?

From my understanding the LQ4 is the exact same block as an LS1 only in iron form. That being true, I would have to assume that a T56 will mount to a LQ4. Please tell me if thats correct?

Upon further research I noticed that there was a limit to what years of camaro or T/A that it would fit....it said 92-2002. Is that because the LS1 wasnt made after 2002 meaning that it would still mount to a later then 2002 LQ4?

Reason being is I found a 2006 LQ4 out of a Cadilac Escalade for 2k so I am curious if it will work?

THANKS, JAMES
Old 11-03-2008, 01:20 AM
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mine did! 04' block, 02 car
Old 11-03-2008, 01:54 AM
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Yes, it will work. I'm in the process of gathering parts for a swap myself.

For the 92-97 t56 you'd have to change the input shaft and bellhousing to a LS-patterned bellhousing and input shaft. Hope that helps.
Old 11-03-2008, 08:39 AM
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^^Also have to change the Face Plate to the LS1 Style as well.

It'll Bolt up, just like it will to a LS1. The earlier LQ4's had thicker Crank Flanges on the Stock Crank, so they are the only ones that wont take a Flywheel for a Standard Swap.
Old 11-04-2008, 08:38 AM
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Default splain plz

Originally Posted by the_merv
^^Also have to change the Face Plate to the LS1 Style as well.

The earlier LQ4's had thicker Crank Flanges on the Stock Crank, so they are the only ones that wont take a Flywheel for a Standard Swap.
Explain this in more depth please. ^^^ So what you're saying is that an earlier lq4 wont take a standard flywheel for a t56 swap? what is the first year with the thinner flange on the crank, allowing for the swap to be done?
Old 11-04-2008, 12:20 PM
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Originally Posted by Mr9two9
Explain this in more depth please. ^^^ So what you're saying is that an earlier lq4 wont take a standard flywheel for a t56 swap? what is the first year with the thinner flange on the crank, allowing for the swap to be done?
The '99-'00 LQ4 had a thick flange on the crankshaft. It will only mate up with a 4l80e or a th350/400. Starting in '01, the LQ4 got the standard crank flange with an adapter flexplate to mate it to the 4l80e. Long story short, you want a '01+ to stick a t56 or 4l60e behind it.
Old 11-04-2008, 03:46 PM
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Cool beans.
Old 09-15-2009, 02:55 AM
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Anyone have any experience mating these LQ4's to T56's?. I bought an 03 LQ4 and an 02 T56 and noticed the imput shaft on the T56 is a lot smaller than the hole in the rear of the crank. Any help or guidance would be great. Please feel free to email me as well. Thanks!.
Old 09-15-2009, 03:36 AM
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I did an A4 to M6 swap onto my lq4.

Also bolted a M6 up to a friends Lq4..

Ive not seen or heard of any issues.
Old 09-15-2009, 07:51 AM
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Originally Posted by 69camarolq4
I bought an 03 LQ4 and an 02 T56 and noticed the imput shaft on the T56 is a lot smaller than the hole in the rear of the crank.

Don't forget (BTW - Captain Obvious here) the Pilot Bushing / Bearing does take up 99% of that space...
Old 09-15-2009, 07:57 AM
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Originally Posted by 69camarolq4
Anyone have any experience mating these LQ4's to T56's?. I bought an 03 LQ4 and an 02 T56 and noticed the imput shaft on the T56 is a lot smaller than the hole in the rear of the crank. Any help or guidance would be great. Please feel free to email me as well. Thanks!.
When you see the Pilot Bearing and install it in the back of the Crank, you will see how it lines up properly.

I just put a T56/LS7 Clutch Assembly on the back of a 4.8l in a friends Truck, went in like a charm.

I didn't mention it but my T56 bolted to the back of my LQ4 Block without any issues.
Old 06-09-2010, 11:18 AM
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Default Another LQ4 T56 Question....

When going from a 03 LQ4 with a 4L80e to an 02 T56. Can anyone tell me if LS1/T56 engines flexplates utilize a flexplate/crank spacer at all?. If so is it the same thickness as the LQ4?. Noticed bolts from original LQ4 are a bit short. So either I need shorter bolts and remove the spacer to mount LS1 flexplate on crank directly or get longer LS1 style bolts?. Any experienced advise would be muchly appreciated and thanks in advance!.
Old 06-09-2010, 02:34 PM
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Originally Posted by 69camarolq4
When going from a 03 LQ4 with a 4L80e to an 02 T56. Can anyone tell me if LS1/T56 engines flexplates utilize a flexplate/crank spacer at all?. If so is it the same thickness as the LQ4?. Noticed bolts from original LQ4 are a bit short. So either I need shorter bolts and remove the spacer to mount LS1 flexplate on crank directly or get longer LS1 style bolts?. Any experienced advise would be muchly appreciated and thanks in advance!.
You only need that spacer with the 4L80E, not with the t56.
Old 06-10-2010, 04:24 PM
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That and I think you mean Flywheel for the T56, not Flexplate..
Old 06-10-2010, 04:33 PM
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05 lq4 with 02 t56 here. No problem bolting up. And like other stated that extra space should be for the pilot bearing.
Old 06-12-2010, 06:23 PM
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So just bolt on the LS1 flywheel directly to the crankshaft and use thick washers for the too long LQ4 bolts or should I get shorter original LS1 flywheel bolts to replace?. If happen to have part no#'s for LS1 flywheel bolts please do inform and thanks a lot for assitance!!!.
Old 06-12-2010, 09:42 PM
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Originally Posted by 69camarolq4
So just bolt on the LS1 flywheel directly to the crankshaft and use thick washers for the too long LQ4 bolts or should I get shorter original LS1 flywheel bolts to replace?. If happen to have part no#'s for LS1 flywheel bolts please do inform and thanks a lot for assitance!!!.
I had the same thought, but it seems like it would take more than just one flat washer to make the stock LQ4 bolts work... SO, I plan on just buying some ARP LS1 flywheel bolts.

Thanks for bumping this thread up... I asked a lot of these questions in a new thread I just started a few days ago
Old 06-14-2010, 02:12 AM
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Originally Posted by 69camarolq4
So just bolt on the LS1 flywheel directly to the crankshaft and use thick washers for the too long LQ4 bolts or should I get shorter original LS1 flywheel bolts to replace?. If happen to have part no#'s for LS1 flywheel bolts please do inform and thanks a lot for assitance!!!.
Idk about that. If they stick out to far they might be a problem for the clutch. I would think
Old 07-09-2010, 08:54 PM
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not that it matters or anything but wouldn't an 06 escalade have the LQ9?
Old 01-18-2017, 01:50 AM
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Originally Posted by Zbinkley
not that it matters or anything but wouldn't an 06 escalade have the LQ9?

I'm sure he has found this out by now LOL

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