C4 Frame braces
Thread Starter
Race Director
Joined: Feb 2003
Posts: 16,475
Likes: 270
From: Kingman AZ
Cruise-In VII Veteran
Cruise-In VIII
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16
C4 Frame braces
Here is a pic of the kit. It also comes with bolts to secure the brackets to your frame. Each 86 to 96 coupe and vert has threaded holes in the front of the frame already for the X braces. This kit uses these front holes and uses the existing bolts at the rear for the other brackets.
As designed by Gordon Killebrew and marketed by Jason Francis of www.vette2vette.com
Jason said they will be doing a kit for the 84/85 later. One of the members over at Corvette Guru will be setting up a group purchase at a discounted price. I do not know what that price will be.
Once again, before anyone rags on me: I do not get a commission on these and I have no commercial interest in them other than getting a nice price break on this early set and trying to publish an article in Corvette Enthusiast magazine of my home install.
Here they are installed on a 90 ZR1. Thanks to Mid America for graciously letting us use their exhaust install lift right in the middle of a very busy Saturday for them.
This is the set that I will be installing in my home garage:
As designed by Gordon Killebrew and marketed by Jason Francis of www.vette2vette.com
Jason said they will be doing a kit for the 84/85 later. One of the members over at Corvette Guru will be setting up a group purchase at a discounted price. I do not know what that price will be.
Once again, before anyone rags on me: I do not get a commission on these and I have no commercial interest in them other than getting a nice price break on this early set and trying to publish an article in Corvette Enthusiast magazine of my home install.
Here they are installed on a 90 ZR1. Thanks to Mid America for graciously letting us use their exhaust install lift right in the middle of a very busy Saturday for them.
This is the set that I will be installing in my home garage:
Thread Starter
Race Director
Joined: Feb 2003
Posts: 16,475
Likes: 270
From: Kingman AZ
Cruise-In VII Veteran
Cruise-In VIII
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16
Jeff from the Corvette Guru Forum has a ZR1 that has a prototype model on it. His model does not have the nut welded to the front end of the bar so he has to tighten the tube by hand. He says it has helped a lot but he still needs to tighten it more. A pipe wrench should do the trick.
Safety Car
Joined: Dec 2006
Posts: 4,290
Likes: 6
From: St Marys GA
Doesn't the frame have HUGE rails that run exactly where these do? That you have to step over to get into the car? Sorry I just don't understand how these would help at all without triangulating the frame.
Race Director
Joined: Mar 1999
Posts: 12,597
Likes: 237
From: Bartlett Illinois
I don't either but they work, I just need to get them set perfect.. I adjusted them today.. even better then the last 3 days, but I think the Passenger side still needs adjusting.. I will see how my week goes for doing that and driving it some more
Racer
Joined: Oct 2004
Posts: 409
Likes: 2
From: Toronto Ontario
I see 4 mounting bolts on the rears but only 1 on the front brackets. There must be 2 on each front bracket right? to lock it from twisting about the bolt. how much does the system weigh? The intent here is to prevent the frame from bowing right?
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
Race Director
Joined: Mar 1999
Posts: 12,597
Likes: 237
From: Bartlett Illinois
other way around.. the 4 bolt brackets are the front ones
Thread Starter
Race Director
Joined: Feb 2003
Posts: 16,475
Likes: 270
From: Kingman AZ
Cruise-In VII Veteran
Cruise-In VIII
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16
The Forum parking lot was flooded out at the show on Saturday so we had to park about 900 yards from the vendor area. I carried the entire set to my car along with a my camera bag and a few other things.
I am guessing they weigh about 25#. I'll put them on a scale tomorrow.
I am guessing they weigh about 25#. I'll put them on a scale tomorrow.
Safety Car
Joined: Sep 2006
Posts: 4,129
Likes: 1
From: Pasadena CA
My car suffers from horizontal twisting of the body, espec with top off as we all know. If it was bending longitudinally I think I wouldn't drive it
Drifting
Joined: Dec 2007
Posts: 1,329
Likes: 17
From: woodbury new jersey
agreed, those humps are there for something. this is along the same idea as frame rail connectors for my old third gen, except the c4 seems to already have these
Le Mans Master
Joined: Dec 2003
Posts: 5,768
Likes: 33
From: Van Steel Corvettes
St. Jude Donor '12-'13
I read somewhere that Gordon Killebrew actually designed these during the C4 run and suggested adding it on. He was denied by GM brass as they didn't want to add any further cost to the car.
I still don't get it either though...
I still don't get it either though...
Safety Car
Joined: May 2003
Posts: 4,283
Likes: 0
From: Houston Texas
Your third gen was a unibody. Therefore people use subframe connectors to connect the front and rear subframes together to make it more rigid. Corvette is full frame.