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Cylinder head thread chaser sizes?

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Old May 24, 2002 | 03:37 PM
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Default Cylinder head thread chaser sizes?

My brother and I are replacing heads on his SS and I need the thread pitch and diameter so I can chase the head bolt threads to clean them out. Thanks.
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Old May 24, 2002 | 05:25 PM
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Default Re: Cylinder head thread chaser sizes? (C5Noir)

Anyone? Thanks.
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Old May 25, 2002 | 02:13 AM
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Default Re: Cylinder head thread chaser sizes? (C5Noir)

I've done many of them and never actually measured the threads. They just don't look like regular threads to me. They look like the threads are at a steeper angle than normal. Almost like a screw. Maybe it's just an optical delusion. :D
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Old May 25, 2002 | 03:39 AM
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Default Re: Cylinder head thread chaser sizes? (Andy@AandACorvette)

Take a stock bolt, cut 2 grooves lengthwise in the bolt with a dremmel or grinder, and like magic, you have a bolt that can be used to clean/chase out the threads. Takes 3 minutes of time and costs nothing. :cheers:
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Old May 25, 2002 | 03:39 AM
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Default Re: Cylinder head thread chaser sizes? (jmX)

Like this: http://ls1.fbody.com/car/mods/heads/day2/IMAGE002.jpg
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Old May 25, 2002 | 09:10 AM
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Default Re: Cylinder head thread chaser sizes? (C5Noir)

Hi Levi,
Small head bolts M8 1.25
Large head bolts M11 2.00
Best to you, and remember, DONT reuse any head bolt.
c4c5 :crazy:
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