This guide will assist you in determining your Superformance's Chassis number. When you are finished with this page, Select your browser's BACK button to return to your application and continue the process…

*        *        *        *        *


The Superformance Chassis Number is assigned by Superformance and stamped directly on the frame. The "Car Number" is the shorthand Chassis Number identifier for each car. The Chassis serial number is located on the VIN plate on top of the passenger foot well as viewed from the engine compartment


The Superformance Chassis Number exists in one of these three formats:

1.)   AC9CSLK1897AM1***   17 digit form. Used on cars 032 through 577 and on
                                                                          cars 579, 580, 582, 583, 584, 586.

2.)   SP***        5 digit form.  Used on cars 578, 581, 585, 587, 588, 589, 590.

3.)   SP0****    7 digit form.  Used on cars 591 on.

The asterisks (*) are the Car Number you are looking for that vary from car to car. Even if your VIN number fits this format, it may not be not be your chassis number. The only accurate way to determine the Superformance Chassis Number is as follows.



Locating the Superformance Chassis Number and confirmation other than by the VIN tag:

A.)   Open the hood. Look in from the driver's side.

B.)   Locate the upper front cross member. It is just in front of the engine. For reference, it
        typically has the remote oil filter mounted on it.

C.)  On the top of the cross member about two inches from the left (driver's side) upright, a number
        is stamped directly on the frame cross member.  This is the Superformance Chassis Number.
        See above for determining your actual "car number."

If you have a metal plate pop riveted in this location, your dealer has covered up the Superformance Chassis Number with you state VIN number.  In this case, do not remove the VIN plate.  Write "Covered by VIN plate" in the space for Superformance Chassis Number.  In this case, it is particularly important that you verify the Car Number as indicated.

The chassis number is also stamped on the hood hinges. Check either hood hinge plate where it is bolted to the hood. The number is stamped into the hinge plate. It may be partially filled with paint and hard to read, but it can be read. The number may also be written in grease pencil in the hinge plate, but use the stamped number.