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bolting a th400 on my ls1 have some questions.

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Old 11-19-2008, 10:22 PM
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Default bolting a th400 on my ls1 have some questions.

I have the hughes crank spacer but does it go inbetween the crank and the flexplate? Or does the the flexplate still bolts to the same place but the spacer pushes the converter back without messing with the flexplate or can someone post pics on how it looks like when its said and done. Thanks ill be installing it this weekend so info is important thanks!!!
Old 11-20-2008, 09:53 AM
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Can you look at the spacer you have? Or did you just order it? I don't think you can install it wrong.
Hughes is one of few (or the only) that does not have bolt holes and a flange.
http://store.summitracing.com/partde...5&autoview=sku
Old 11-20-2008, 11:47 AM
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That's the one I have. But do I need longer flexplate bolts or longer converter bolts.
Old 11-20-2008, 11:53 AM
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No. You just tap that into the end of the crank. It doesn't effect anything, it just makes up for the shorter crank pilot on a regular th400 converter.
Old 11-20-2008, 12:11 PM
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I am running that spacer on my current setup and had to purchase converter indexing shims to make it space out right with a stock flywheel. The flywheel that hughes makes has the bolt holes already moved back toward the converter so that is something you will have to look into. I will see if I still have the part number laying around I think they came from Jegs because Summit doesn't stock them
Old 11-20-2008, 12:11 PM
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Ohhhh really so the normal converter bolts and flexplate bolts work I was getting confused lol thanks!
Old 12-31-2008, 05:03 PM
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is this the same space used when putting the 4l80 in with a stock ls1 flexplate
Old 12-31-2008, 09:42 PM
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Originally Posted by chevyz2801
is this the same space used when putting the 4l80 in with a stock ls1 flexplate
Yes..



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