C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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1972 firewall

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Old Aug 24, 2022 | 08:09 AM
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Default 1972 firewall

hi I bought a 1972 C3 project and installed a firewall but I have no clue what goes where and what the holes are for
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Old Aug 24, 2022 | 09:48 AM
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You need to get an assembly manual for 72.
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Old Aug 24, 2022 | 12:13 PM
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ok I thought I could of got a photo so I can see what goes where
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Old Aug 24, 2022 | 01:49 PM
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https://www.google.com/search?q=72+c...ZjmXwq_LjZ_SrM
lot of good pics. the project car one is good cuz there is no engine in the way. a picture is worth a thousand words. but this is worth a whole crap load more... https://www.ebay.com/itm/20392971603...3ABFBMzIDdj9pg
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Old Aug 24, 2022 | 04:35 PM
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Originally Posted by 69FASTFUN
You need to get an assembly manual for 72.
I have it but I don't see it. if you have the section and sheet #
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Old Aug 24, 2022 | 07:11 PM
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Originally Posted by Pat m
I have it but I don't see it. if you have the section and sheet #
My unresearched guess is that most of the holes are for wires and vacuum lines. There are mechanical holes for the brake master, steering, clutch, wiper motor, wiper door actuator, and hood latches. Otherwise, I'm thinking wires and hoses. In the AIM, you'd need to look at the section for each component installation, like headlight, wipers, or climate vacuum lines, or wiper motor, or electric windows, etc. It is on those component pages where the firewall location will be indicated.

Alternatively, post a photo of a few unknowns and we'll tell you in short order what goes there and if a grommet or something else is used to help seal the hole and protect the component.
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Old Aug 24, 2022 | 07:22 PM
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Here are a few photos of my firewall after engine removal and prior to cleaning up and a new wiring harness installation.






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Old Aug 24, 2022 | 08:03 PM
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Originally Posted by 67:72
Here are a few photos of my firewall after engine removal and prior to cleaning up and a new wiring harness installation.





ok thank you
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