1978 c3
Le Mans Master
Joined: Sep 2002
Posts: 5,228
Likes: 895
From: Myrtle Beach SC
A buildsheet or window sticker will confirm. Otherwise, ZN1 was no more than heavy-duty suspension and cooling. Check the shock numbers and they should show heavy-duty along with a six-leaf rear spring. Perhaps the easiest first step is to check and see if there is a rear sway bar...included with the FE7, or heavy-duty suspension. 
Race Director
Joined: Mar 2017
Posts: 11,798
Likes: 4,420
From: Virginia
For $50-, you can buy the dealer invoice from GM. Link in my signature. It will show you what options came with your car, which dealer originally sold it, and some other cool info.
Despite what some other threads may say, having ZN1 emblems on the fenders instead of the crossed flags is NOT an indicator of the rare ZN1 option package, though there's nothing stopping you from doing it.
https://www.corvetteforum.com/forums...e-package.html
Despite what some other threads may say, having ZN1 emblems on the fenders instead of the crossed flags is NOT an indicator of the rare ZN1 option package, though there's nothing stopping you from doing it.
https://www.corvetteforum.com/forums...e-package.html
