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DIY head porting question

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Old 06-03-2011, 04:53 AM
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Default DIY head porting question
I have a question concerning the casting for the rocker arm bolts in the runners of the lt1 heads.


Can I smooth those out and if I were to poke through and reach the threaded hole for the rocker stud would this cause an issue.


For example, I have this going on.........







And was wondering if I could do this...................









I am thinking a thread sealant on the rocker studs would stop any vacuum leaks, but I am just looking for some second opinions
Last edited by mtperformance; 06-03-2011 at 01:37 PM.
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Old 06-03-2011, 06:41 AM
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Thread sealant on the rocker studs is actually an OEM practice, so you'll be fine.

Also, PM sent.
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Old 06-03-2011, 11:31 AM
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yep and yep
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Old 06-04-2011, 01:14 PM
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As stated above. Just use a good amount of thread sealer on the rocker arm studs and youll be good to go.
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Old 06-04-2011, 11:58 PM
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i've never seen those before. does only one of the castings have those?
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Old 06-05-2011, 09:05 AM
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I thought those were on the LT4 heads.
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Old 06-06-2011, 06:31 AM
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What type of thread sealer would be best?

Would the same sealer for our head bolts work?
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Old 06-06-2011, 02:35 PM
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Originally Posted by mtperformance
What type of thread sealer would be best?

Would the same sealer for our head bolts work?
I use the ARP thread sealant on my rocker studs that protrude.
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