Conversions & Swaps LSX Engines in Non-LSX Vehicles
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12563533 bolt length

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Old May 9, 2011 | 08:16 PM
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Default 12563533 bolt length

LQ9 (crank is flush with seal) to 700R4. using the curved (12580907) flexplate.

fitted it all together with spacer (flexplate, then 12563532 spacer)

the thread depth with the spacer is about 40mm

the 12563533 bolt is about 25mm or so. seems a tad short with the spacer.

This can't be the bolt everyone is using...???


Thanks for your help.
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Old May 10, 2011 | 08:29 PM
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12563533 bolt length-gen-3-flexplate.jpg

1/2 inch is all we need I guess.
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Old May 10, 2011 | 09:06 PM
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I used a different part number. I will post the number and size tomorrow at lunch. Everything is at work.
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Old May 11, 2011 | 11:07 AM
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i used part number 11569956, got it from car crafts edition on engine swaps. it was cheeper than the other part number. it measures .920 under the head, the spacer measures .400. that leaves a half inch of threads.
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Old May 11, 2011 | 09:41 PM
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Sorry for troubling this site with a dumb question.

Thanks Markus for the reply.

The female thread depth on the crank is only 17 mm.

1/2" OR 13 mm of bolt engagement leaves only 4mm or about 3 threads or so.
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