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Cast HKS manifold turbo nut size and thread pattern

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Old 11-05-08, 08:54 AM
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Cast HKS manifold turbo nut size and thread pattern

What is the bolt size and thread pattern of the nuts that hold down the turbo for the hks cast iron manifold for the FC. I bought the manifold but didn't come with them, going to make a trip to the harware store and want to make sure. I think the size is 3/8 but don't know the thread pattern. THanks
Old 11-05-08, 09:26 AM
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I don't know exactly, but I doubt it's 3/8". It's going to be metric. If it's the same as stock, that's M10.
Old 11-05-08, 05:31 PM
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Best way to be sure would be to take the manifold along to the store and try different nuts.
What are they gonna do, ask if you stole it from one of the lawnmowers?
Old 11-06-08, 12:34 AM
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M10x1.25 I believe, small chance it is M10x1.00
Old 11-06-08, 02:19 PM
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ok thanks ill give that a try
Old 11-08-08, 01:13 PM
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well i went to the hardware store and picked 4 of M10x1.00 and M10x1.25 and neither of those fit. Could it be M10x1.50 ?
Old 11-08-08, 01:32 PM
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Bring the manifold to the hardware store as suggested instead of buying the nuts.
Old 11-08-08, 02:02 PM
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Well I found a nut that will fit! It's the same thread pattern as my short shifter. I'm going down do the hardware store to get the right ones!
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