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Head Bolt Size

Posted August 12, 200816 yr

comment_256331

I just found a broken thread on one of the head bolt holes on my N42 block, and I'm thinking to fix it with a helicoil. Does anyone have the head bolt size (dia. and thread pitch) info. or maybe the helicoil part number handy? Many thanks in advance.

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https://www.classiczcars.com/forums/topic/29019-head-bolt-size/

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August 12, 200816 yr

comment_256336

I believe it is 10mmx1.25.

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https://www.classiczcars.com/forums/topic/29019-head-bolt-size/#findComment-256336

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August 12, 200816 yr

Author

Thanks a lot for the quick info!

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https://www.classiczcars.com/forums/topic/29019-head-bolt-size/#findComment-256339

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