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Generation IV Internal Engine
Head threads question

Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

Head threads question

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Old

Nov 17, 2017 | 08:21 PM

#1

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Staging Lane

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Head threads question

What’s up everyone?

So I’m waiting to install my heads until I get all the heads bolt threads cleaned up. I ordered up both ARP head thread cleaners but I still haven’t received the smaller one of the two, M8x1.25. I got the other larger ones all cleaned up.

When I read threads about cleaning out the holes I rarely see people mention cleaning the smaller bolt holes. Is it that big of a deal or should I just wait to I receive it to clean them out before head install?

Thanks

Old

Nov 17, 2017 | 09:31 PM

#2

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From: Jasper, AL

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You can notch an old head bolt and it’s basically the same as a thread chaser.

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Nov 19, 2017 | 11:54 AM

#3

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Be sure to blow out all bolt holes prior to bolting te heads down. Failure to do so could result in "I told you so"

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Nov 19, 2017 | 10:15 PM

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From: Glennville, GA.

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^^^yes. Water in head bolt holes will crack block.

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Nov 21, 2017 | 01:03 PM

#5

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From: Monroe,NY

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I put a straw taped in my vacuum hose and sucked all the water out of the bolt holes. Works good and quick and better than blowing out the holes.

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