3747042 �LH� exhaust manifold??
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I think the left side manifold for 63-65 SHP FI engines was 3797942
https://www.corvettecentral.com/c2-6...hand-gm-322007- Top
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Bob------Thanks Don. I saw that too when I visited a couple of the typical parts websites this afternoon. <br />
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MF Dobbin’s Fact Book only shows the 3747042 in RH applications. But sequentially the 374xxxx p/n implies an earlier first application than 1963 for 3747042 … maybe in a LH application?. Don’t know …
The part/casting number dates back to about 1958.In Appreciation of John Hinckley- Top
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