Formula Technical

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Go to: 87 Weight Information

Go to: 87 Engine Information

Go to: 87 Transmission Information

Go to: 87 Rear Axel Information

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Go to: Speedometer gears

Go to: Engine production numbers (estimates)

Engines:

*Note: Flammang, James M. & Kowalke, Ron. 1999. "Standard catalog of American cars 1976-1999". Krause Publications, pp 873

Abbreviations:

A4   - Automatic Transmission 700R4

M5   - 5 Speed Manual Transmission
TBI  - Throttle Body Injection 
TPI  - Tuned Port Injection
MPFI - Multiport Fuel Injection

Cam Data 

Head Data

These heads had the "Swirl Flow Design"

* NOTE: These Numbers are not yet confirmed

The 700R4 Automatic
Transmission code is located on the right rear oil pan rail and includes the year, model, Julian build date and shift built.
Example:7YPMYXXXXXXXXX267A

Build Date Code
Starts with the Julian date (day of the year) on which 1987 production started. The build date code continues with the Julian date until December 31 (365). The sequence then continues until the end of the 1987 production. EXAMPLE: January 20, 1987 would translate to a build date code of 385.

Shift Code

Note:
In addition to the transmission production code number, all passenger cars have a portion of the vehicle identification number stamped on the transmission. The condensed vehicle identification number consists of the division identification number, model year, assembly plant designation and vehicle build sequence number.

The Rear Axle Codes
Is a two letter code stamped on the front passenger side of the axle tube or on an identification tag attached to the carrier cover. It identifies that axle code ratio and if the axle is equipped with the Safe-T-Track option.