400 exhaust manifold

chuck machinist · Sep 24, 2014

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

oldproudvet · Sep 24, 2014

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

chuck machinist · Sep 25, 2014

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

oldproudvet · Sep 25, 2014

3.750" ctr to ctr..........

400 exhaust manifold

chuck machinist

Well-known Member

oldproudvet

Well-known Member

chuck machinist

Well-known Member

oldproudvet

Well-known Member

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