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| Joined: | 01-29-2017 |
| Location: | Phoenix |
| Posts: | 51 |
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| View single post by allstateguy | |||||||||||||
| Posted: 12-21-2018 09:19 pm |
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allstateguy
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Pontiac had aluminum exhaust manifolds available for the SD engines in their lightweight Super Stock full sized cars back in 1962. I think they were considered practical only in drag race situations.
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