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400 exhaust manifold

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chuck machinist

09-24-2014 17:03:05

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I recently cast welded up the tapped holes on my exhaust manifold .The exhaust elbow mounts to it. I lost my bolt distance dimensions and bolt size. I need to drill and retap the holes on the manifold Any help there? Thanks to Caseman-d for allowing me to use his 412 pic as an example.
Chuck. Thanks Thomas

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09-24-2014 20:43:49

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 Re: 400 exhaust manifold in reply to chuck machinist, 09-24-2014 17:03:05  
Just looking at my parts book tonight, the 2 bolts are 1/2 x 1 1/2 NC. I can measure the distance on one of mine tomorrow if you still need the spacing

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chuck machinist

09-25-2014 00:54:34

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 Re: 400 exhaust manifold in reply to oldproudvet, 09-24-2014 20:43:49  
That would be great. I left the old girl at my cousins in Illinois ,so that we may replace various seals in the clutch and trans this coming winter. I picked up a spare manifold this summer, and mounted her. It never hurts to have a spare manifold and starter hey!. I am greatfull to you for taking the time to check. Chuck

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09-25-2014 09:41:06

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 Re: 400 exhaust manifold in reply to chuck machinist, 09-25-2014 00:54:34  
3.750" ctr to ctr..... ....

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