C1 & C2 Corvettes General C1 Corvette & C2 Corvette Discussion, Technical Info, Performance Upgrades, Project Builds, Restorations

C1 frame with C4 suspension

Thread Tools
 
Search this Thread
 
Old Yesterday | 08:30 PM
  #1  
zmotorhead123@gmail's Avatar
zmotorhead123@gmail
Thread Starter
Navigator
 
Joined: Mar 2026
Posts: 9
Likes: 1
Default C1 frame with C4 suspension

Several years ago, I purchased a C1 frame with all the fabrication done to install C4 suspension, front and rear. I finally got around to the build and would like to check all the measurements before I get too far along. Does anyone have a blueprint for a C1 frame with C4 suspension. Thank you
Reply
Old Today | 08:11 AM
  #2  
Limp's Avatar
Limp
Drifting
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Sep 2024
Posts: 1,620
Likes: 1,059
From: Florida
Default

Originally Posted by zmotorhead123@gmail
Several years ago, I purchased a C1 frame with all the fabrication done to install C4 suspension, front and rear. I finally got around to the build and would like to check all the measurements before I get too far along. Does anyone have a blueprint for a C1 frame with C4 suspension. Thank you
Was the fab work done incorporating the front crossmember from a C4?? If so the front suspension and the steering rack should all be bolt on... The suspension changed from the 84-87 to the 88 up, so you need to make sure you get the parts that match and what you want to use.... Alot of the aftermarket frames require the shortening of the Rear half shafts. rear tie rods, and the spindle support rods.....
An Excellent you tube video to watch is " C4 corvette suspension set ups" by Mirrock Corvette.... I have watched it many times as I plan out my restomod.....
Reply
Old Today | 08:22 AM
  #3  
cbernhardt's Avatar
cbernhardt
Safety Car
Veteran: Navy
25 Year Member
Liked
Top Answer: 1
 
Joined: Dec 1999
Posts: 4,394
Likes: 1,188
From: Lexington,NC,USA
C1 of Year Finalist (track prepared) 2019
Default

Is your frame an original C1 frame that has been modified or an aftermarket frame that was constructed to bolt on C4 components? If it is an original C1 frame the top picture below is a diagram with measurements that you can use to check the location of the body mount holes. The penciled in measurements (in inches) are my additions. The bottom part of the picture has measurements that I used (inches and millimeters) to double check the "squareness" on a frame that I modified to accept C4 suspension.


Reply
Old Today | 09:54 AM
  #4  
zmotorhead123@gmail's Avatar
zmotorhead123@gmail
Thread Starter
Navigator
 
Joined: Mar 2026
Posts: 9
Likes: 1
Default

Thank you so much for this. I do have a factory C1 frame modified to accept C4 suspension. This is very helpful
Reply
Old Today | 11:16 AM
  #5  
cbernhardt's Avatar
cbernhardt
Safety Car
Veteran: Navy
25 Year Member
Liked
Top Answer: 1
 
Joined: Dec 1999
Posts: 4,394
Likes: 1,188
From: Lexington,NC,USA
C1 of Year Finalist (track prepared) 2019
Default

Originally Posted by zmotorhead123@gmail
Thank you so much for this. I do have a factory C1 frame modified to accept C4 suspension. This is very helpful
Who modified your frame? You? Please post a picture.
Reply
Old Today | 12:18 PM
  #6  
Scott Marzahl's Avatar
Scott Marzahl
Le Mans Master
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2005
Posts: 6,355
Likes: 425
From: Seattle Area WA
Default

Curious if this was a Paul Newman Car Creations modified frame?
Reply
Old Today | 01:44 PM
  #7  
cbernhardt's Avatar
cbernhardt
Safety Car
Veteran: Navy
25 Year Member
Liked
Top Answer: 1
 
Joined: Dec 1999
Posts: 4,394
Likes: 1,188
From: Lexington,NC,USA
C1 of Year Finalist (track prepared) 2019
Default

Originally Posted by Scott Marzahl
Curious if this was a Paul Newman Car Creations modified frame?
That was my first thought also.
Reply
Old Today | 05:57 PM
  #8  
zmotorhead123@gmail's Avatar
zmotorhead123@gmail
Thread Starter
Navigator
 
Joined: Mar 2026
Posts: 9
Likes: 1
Default

I have repeatedly tried to access this forum from my smart phone to send a picture and it will not accept my password or an updated password sent to me via email. I bought the frame from a gentleman in Maryland around 5 years ago. I seem to remember him telling me it was fabricated by someone in North Carolina. If you want me to send pictures, please provide an email address. If you dont want to do that, I completely understand. Thank you again
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Today | 06:20 PM
  #9  
Scott Marzahl's Avatar
Scott Marzahl
Le Mans Master
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2005
Posts: 6,355
Likes: 425
From: Seattle Area WA
Default

Ok, I know of that frame guy, he kind of copied Billy Dawson's frame.

https://vetteframe.com/pricing.php

Last edited by Scott Marzahl; Today at 06:25 PM.
Reply
Old Today | 06:27 PM
  #10  
Limp's Avatar
Limp
Drifting
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Sep 2024
Posts: 1,620
Likes: 1,059
From: Florida
Default

Originally Posted by Scott Marzahl
Ok, I know of that frame guy, he kind of copied Billy Dawson's frame.
I believe your thinking of the guy in South Carolina..... There was a shop in North Carolina I contacted before I bought from Billy... They told me their frame builder had passed away and they weren't sure if they were going to build frames anymore;.... Seems like they sold parts and possibly did service work????

Last edited by Limp; Today at 06:27 PM.
Reply

Get notified of new replies

To C1 frame with C4 suspension





All times are GMT -4. The time now is 11:05 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE