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

C4 Frame Diagram

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Old Aug 23, 2009 | 12:25 PM
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Default C4 Frame Diagram

I've done a search, but came up empty - maybe the wrong search criteria. Can anyone point me to a reasonably detailed diagram of a C4 frame? Doesn't necessarily have to have dimensions, but that would be a plus. I've been a C3 guy for a number of years, but the C4 is new to me and I have a project in mind. TIA
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Old Aug 23, 2009 | 12:34 PM
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Originally Posted by Desert68
I've done a search, but came up empty - maybe the wrong search criteria. Can anyone point me to a reasonably detailed diagram of a C4 frame? Doesn't necessarily have to have dimensions, but that would be a plus. I've been a C3 guy for a number of years, but the C4 is new to me and I have a project in mind. TIA
If your planning on using a C4 frame for another project I have bad new the C4 is sort of a hybrid unibody. I know these are not what you want....but its good for a bump





and here is a pic of the C4 ZR1 chassis


Here's the bird cage


Mike

Last edited by aboatguy; Aug 23, 2009 at 12:44 PM.
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Old Aug 23, 2009 | 01:43 PM
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Some info from my 86 FSM >> http://members.shaw.ca/agent86/Frame%20Specs.pdf
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Old Aug 23, 2009 | 04:53 PM
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Thank you for the replies. I'm interested in building something along these lines, but with one engine:

http://www.hotrod.com/featuredvehicl...ggy/index.html

I currently own a '68 coupe, been a Chevy/GM guy forever and I'm trying to figure out a way to do something like this without having to do suspension mounting points, etc, from scratch. LS3/L92, Chevy/GM throughout. The thought occured to me the other night that a C4 front/rear suspension would be a great starting point.

Thanks for the diagrams and comments.
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Old Aug 23, 2009 | 06:36 PM
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Originally Posted by Desert68
Thank you for the replies. I'm interested in building something along these lines, but with one engine:

http://www.hotrod.com/featuredvehicl...ggy/index.html

I currently own a '68 coupe, been a Chevy/GM guy forever and I'm trying to figure out a way to do something like this without having to do suspension mounting points, etc, from scratch. LS3/L92, Chevy/GM throughout. The thought occured to me the other night that a C4 front/rear suspension would be a great starting point.

Thanks for the diagrams and comments.
Buy one of those tube frames for a C3 that use all C4 suspension stuff and go from there.
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Old Aug 23, 2009 | 08:06 PM
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Originally Posted by aboatguy
If your planning on using a C4 frame for another project I have bad new the C4 is sort of a hybrid unibody.
Get the sawzall out



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Old Aug 23, 2009 | 08:49 PM
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Those are cool pics Rod

Jim
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Old Aug 23, 2009 | 09:27 PM
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sawzall ..... the tool of choice.
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Old Aug 23, 2009 | 10:15 PM
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Originally Posted by jeffp1167
Buy one of those tube frames for a C3 that use all C4 suspension stuff and go from there.
You got a link for that?
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Old Aug 23, 2009 | 11:33 PM
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Originally Posted by nitronick
You got a link for that?
http://www.sriiimotorsports.com/196382corvette.html

http://www.newmancarcreations.com/63...tte/index.html
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Old Aug 24, 2009 | 02:34 AM
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Old Aug 24, 2009 | 12:10 PM
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Originally Posted by jeffp1167
Buy one of those tube frames for a C3 that use all C4 suspension stuff and go from there.
Now that's one heck of an idea! Thank you.
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Old Aug 24, 2009 | 01:02 PM
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Has anybody ever done anything to stiffen the frame of a stripped down car like Rodj's other then the typical bolt on's? I just started a project that I plan to tear down about that far and I keep thinking how it would be worth welding in some steel to stiffen the frame but I havent looked into if its been done and how yet.
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Old Aug 24, 2009 | 01:22 PM
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Here's another shot

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Old Aug 24, 2009 | 07:19 PM
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Originally Posted by MIke350
Has anybody ever done anything to stiffen the frame of a stripped down car like Rodj's other then the typical bolt on's? I just started a project that I plan to tear down about that far and I keep thinking how it would be worth welding in some steel to stiffen the frame but I havent looked into if its been done and how yet.
The only way you are going to get extra stiffness is by going the race car route with a full cage tying the front suspension through the main rollbar loop to the rear suspension.The main frame rail are a large section but there is nothing to prevent the front from twisting in different direction to the rear.Once you have a cage in there it becomes a stiffer 3D item.
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