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#1
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emission holes
What is the best way to plug emission holes in the 302 heads?
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#2
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Tap them and then install a flush allen head set screw. Then use a grinder to remove the hump in the exhaust port floor to increase exhaust flow or there will still be a major restricion there.
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Thanks for the reply.
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#4
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Welcome, anytime.
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#5
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emissions holes
dwc43 is right. 1/4" long allen screws ,1/4by 20. Just add some red locktite too just for insurance.
That is how I did mine |
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