Big Block Front Coil Spring Decals

[Nova Research Project]

RonNova396L34;

3955727 HH will fit a 70 Nova. It was a big PR thing for GM when they stated that they used an EDP (Electronic Data Processing) process to specially select the right spring for your car based on options ordered. Basically they calculated the overall weight distribution (front and rear) for the car with all of the options on it. The total front and rear weight determined the spring code that was printed on the chassis broadcast sheet. There were 27 different front springs for the 70 Nova alone. Quite a few overlapped with the 69 Camaro (as you know).

The parts books give some charts to help figure out what spring to use, but they usually only list 3 or 4 service springs. Other than COPO cars which were at the extreme end of the spectrum and had fairly limited options installed, it is harder to determine what spring was on your car once the tag was gone. A 307 with custom interior and AC might use the same spring as a stripped big block car. It all depended on the total options on a car.

Does this help? Sorry for the long reply, I have tons of time to kill before I head to O'Hare and fly home

Greg