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turbo 400 on an lq4

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Old 01-21-2008, 08:00 AM
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Default turbo 400 on an lq4

when i picked up my lqr engine, it had a 4l80e used on it (which i dont have) i am going to use a turbo 400 behind it
it had the spacer between the crank and flywheel, and the flat flywheel-is this spacing correct for a 400/converter
i know they make some kits for the other flywheels (4l60e) but thought i could use the 4l80e setup on a 400-thanks
Old 01-21-2008, 12:46 PM
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if your 6.0 has the spacer on it,, leave it on,, you can bolt a th350 or th400 right up to that engine with no modifications, the flex plate will even have the large gm bolt pattern for the converter

same setup my s-10 has
Old 01-23-2008, 03:35 PM
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I'm getting a 5.3L for my fourth gen... can I bolt up a th400 to that? What will I need to make this happen? (spacers, flexplate, etc) thanks
Old 01-25-2008, 08:10 AM
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you can also get a conveter made for a 400 to ls motor. the front hub on the converter is longer on ls applications.

or you can just get a crank spacer that slips over the converter thats made for the old style motors
Old 01-26-2008, 04:13 AM
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how much is a spacer?
Old 01-26-2008, 07:04 AM
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im sending you a pm with a link. since the only one i could find was thru a non-sponsor. and i do not want my head choppes off for helping you...........

Last edited by red83; 01-26-2008 at 07:11 AM.
Old 01-26-2008, 08:54 AM
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Originally Posted by red83
you can also get a conveter made for a 400 to ls motor. the front hub on the converter is longer on ls applications.

or you can just get a crank spacer that slips over the converter thats made for the old style motors


the spacer actually gets pressed into the back of the crankshaft flange(the one made by hughes is about $45)
Old 01-26-2008, 09:23 AM
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Originally Posted by jay_lt4
the spacer actually gets pressed into the back of the crankshaft flange(the one made by hughes is about $45)
but the converter also slips in the spacer
Old 01-27-2008, 08:46 PM
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sounds good.. thanks guys
Old 01-29-2008, 07:45 PM
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id also like some info on this. Im going from the 4.3 v6 to a lq9, and have the older style 4l80e currently in the truck with a hughes 3500 stall lock up converter.
Old 03-17-2008, 10:46 PM
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So from all this I get: 400 Turbo WILL bolt up to my 2001 Corvette LS1..... with a spacer! Now... The spacer comes from ??? and hooks to ???? The Newby
Old 03-17-2008, 10:54 PM
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you need a ls1 style flexplate and then the spacer goes into the crank and then the converter snout sits in the spacer. I bought mine from summit made by hughes spacer and flexplate (needed a sfi flexplate anyway)

http://store.summitracing.com/partde...5&autoview=sku
Old 03-27-2008, 06:36 PM
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What if you have an LQ4 with the spacer? will it bolt up to a LS style 4l60e

Sorry for the



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