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| TSB exhaust manifold https://www.slantsix.org/forum/viewtopic.php?t=61168 |
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| Author: | matv91 [ Sun May 21, 2017 5:26 pm ] |
| Post subject: | TSB exhaust manifold |
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| Author: | matv91 [ Sun May 21, 2017 5:41 pm ] |
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Note the outlet id just a little smaller than older manifolds. |
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| Author: | Pierre [ Mon May 22, 2017 12:18 am ] |
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How can you tell ID just by what you posted? |
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| Author: | SlantSixDan [ Mon May 22, 2017 10:32 am ] |
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Quote: Note the outlet id just a little smaller than older manifolds.
Says who?
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| Author: | matv91 [ Sun May 28, 2017 4:12 pm ] |
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Manifolds with this number 4100448 and dates 79,86 and 95 1 and 15/16 outlet. 2 manifolds with this number 4027567 from 1977 and one manifold with number 8 or 3 671882 from 1973 had 2 inch outlet. |
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| Author: | Reed [ Sun May 28, 2017 4:18 pm ] |
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Is 1/16 difference in a cast iron exhaust manifold inner diameter intentional or manufacturing tolerance? Maybe some of the older cores were wearing out and resulting in a slightly smaller inner diameter? |
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| Author: | matv91 [ Sun May 28, 2017 4:19 pm ] |
| Post subject: | Manifold number |
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| Author: | matv91 [ Sun May 28, 2017 4:19 pm ] |
| Post subject: | Drill hole in intake |
This kit comes with instructions, |
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| Author: | matv91 [ Sun May 28, 2017 4:20 pm ] |
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| Author: | SlantSixDan [ Sun May 28, 2017 4:29 pm ] |
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Last 4267233 I measured was a good number of years ago, but I recall it being the same as the '65 manifold I was comparing: 2" even. In any event, if you encounter one with a 1-15/16" outlet, take a cylinder hone to it and get back your 2". 
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