C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

C4 Frame material?

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Old Mar 5, 2007 | 07:48 PM
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Default C4 Frame material?

Anyone happen to know specifically what alloy & gauge of material the C4 frame is made of?
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Old Mar 5, 2007 | 09:35 PM
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Metallurgy??? Man I hated chemistry the first and the second time.

Sorry, I don't know.
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Old Mar 5, 2007 | 10:35 PM
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It would be interesting to know, from all the C4s I've seen here in the North East it seems to be of very good quality.
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Old Mar 5, 2007 | 10:54 PM
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My copy of "Corvette From the Inside" is in the POD as we're moving.

Check it out at the Library or perhaps one of the members can look it up. I'm quite sure it's in there. BTW, the metal is galvanized, also.
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Old Mar 5, 2007 | 11:30 PM
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14 Gauge (0.080", 2mm) hot-dipped galvanized sheet steel. zinc-galvanized coating.
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Old Mar 5, 2007 | 11:48 PM
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Originally Posted by black88z51
14 Gauge (0.080", 2mm) hot-dipped galvanized sheet steel. zinc-galvanized coating.
Outstanding! Exactly what I was looking for.

Thanks, everyone.
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Old Mar 6, 2007 | 12:19 AM
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actually it's a mix

the rear most cross member is made from aluminum.
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Old Mar 6, 2007 | 12:39 AM
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Originally Posted by black88z51
14 Gauge (0.080", 2mm) hot-dipped galvanized sheet steel. zinc-galvanized coating.
Learn something new everyday
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Old Mar 6, 2007 | 05:16 AM
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Old Mar 6, 2007 | 06:13 AM
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great post!!!

You have any more scans?
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Old Mar 6, 2007 | 07:33 AM
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No wonder it flexs so much w/ the roof off...

2mm thick and no cross members!
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Old Mar 6, 2007 | 10:08 AM
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The next page:




It is from an old book that i like a lot. It is about the development of the 4th generation Corvette.

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Old Mar 6, 2007 | 05:18 PM
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Brian & joby...thanks for taking the time to track down those images and post them. This is way more than I'd hoped for!

I think I'm going to try to track down a copy of "The Newest Corvette"...looks like some there's some good stuff there.

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Old Mar 6, 2007 | 05:27 PM
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Originally Posted by 95PoloVert
Brian & joby...thanks for taking the time to track down those images and post them. This is way more than I'd hoped for!

I think I'm going to try to track down a copy of "The Newest Corvette"...looks like some there's some good stuff there.

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Old Mar 6, 2007 | 06:03 PM
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Originally Posted by 95PoloVert
Brian & joby...thanks for taking the time to track down those images and post them. This is way more than I'd hoped for!

I think I'm going to try to track down a copy of "The Newest Corvette"...looks like some there's some good stuff there.


thanks for the information, learned something new.
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Old Mar 14, 2007 | 12:46 PM
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outstanding information
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Old Mar 14, 2007 | 11:33 PM
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The post by JoBy inspired me to pick up a copy of "The newest Corette". It arrived today from a used book seller. I highly recommend it - It's got lots of pictures of C4 development and lots of information abotu every aspect of the cars design. Cool book!
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Old Jun 13, 2015 | 01:59 PM
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Default The book

Ha! Just bought the hardcover edition on Amazon. $0.01 plus $6.50 shipping.

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Old Jun 20, 2015 | 09:14 PM
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I cut a hole in the rear frame on my parts car to see what it would take to gain access adjusting my koni's. Here is the frame sample.
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