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GTP S2 head question

Generation III Internal Engine 1997-2006 LS1 | LS6

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GTP S2 head question

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Oct 29, 2004 | 07:47 AM

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From: Wish-consin

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GTP S2 head question

I just got my GTP S2 heads. They are 853 castings.

I found something in the intake port that I found unusual. The threaded hole for the intake rocker is open into the intake port, creating a hole in the side of the port. Is this correct. This hole is present on all eight intake ports so I assume it is correct.

Does the rocker arm bolt seal this hole when the rocker arm is installed?

Can this hole cause a vacuum leak or cause oil consumption problems by allowing oil to get into the intake port or will the rocker arm bolt seal the hole?

Thanks.

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Oct 29, 2004 | 07:51 AM

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From: Cleveland, OH

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Use locktite on the rocker arm bolts. There's another post asking the same question on this page.

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Oct 29, 2004 | 08:18 AM

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Doh! Now I feel like a dumb ***.

Thanks.

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Oct 29, 2004 | 09:00 AM

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I used teflon thread sealer. Didn't want the bolt to get seized up in there using loctite. They're hard enough to get loose sometimes as it is.

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