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Old 10-14-2015, 02:18 PM   #1
71CHEVYSHORTBED402
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Re: Educate me: Differences in BB exhaust manifolds for 71-72?

Quote:
Originally Posted by DeadheadNM View Post
The iron that bridges the bolt hole flanges between adjacent ports - pics illustrate the differences between "webbed" vs. "no-web"
Oh, now I see it thank you. "Damn my eyes".

Anyone know why the castings under the ports don't match LH vs RH? I believe this is consistent for many BBC vehicles, if not SBC as well.
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71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assm. guide "kit" for restoring the truck from ground up. With assys, the guide accts for 1000s details, OEM identifications & part numbers, written in short order. 700+ images of assm., illust., charts, and points of interest. Much of the info. applies to all 67-72 GM trucks, and to a lessor degree all 67-72 GM vehicles. My build thread, and more on the guide https://67-72chevytrucks.com/vboard/...d.php?t=730025
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