LS1 intake manifold bolt size?

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Oct 11, 2011 | 05:37 PM

raylit20

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LS1 intake manifold bolt size?

I am installing an LS1 intake manifold on my LM4 and it didn't come with any hardware. I did some googling and seaching and couldn't find any info.

I am curious to know what the bolt length and thread pitch is for these stocks manifold hold down bolts. It would be very convenient for me to just run to the hardware store and pick some up. I am assuming it's XXmm x M8 1.5mm thread pitch.

Any help is much appreciated. Thanks.

Oct 11, 2011 | 06:27 PM

SweetS10V8

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m6 x 1.0 x 110mm on FAST manifolds.... Ive used them on on OEM manifolds as well.

Oct 11, 2011 | 07:36 PM

raylit20

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Thanks. I was a bit off before.

Oct 12, 2011 | 12:39 AM

01ssreda4

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I would try to source an OEM set of bolts but that's just me.

Oct 12, 2011 | 12:54 AM

lemons12

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I have a set IIRC..

Oct 15, 2011 | 10:12 PM

raylit20

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Looks like I can't find any locally. Anybody want to sell me a used set? Lemons12?

I searched the marketplace but didn't find any currently available.

Oct 16, 2011 | 07:49 AM

SweetS10V8

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mcmaster-carr

Fastenal

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Oct 16, 2011 | 10:24 AM

Rikoshay

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I got mine from McMaster Carr.

M6x110 in packs of 5 (allen head), which were $6 each. So $12 for all 10.

Also ordered extra bellhousing/trans bolts when I placed my order.

Oct 16, 2011 | 09:05 PM

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S10xGN

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From: Port Neches, TX

Quote:

Originally Posted by 01ssreda4

Fastenal around here always acts like little bit**** when you only want a few of anything. They want you to buy in bags of 50 or 100. I have stopped dealing with them.

Yup, same here.