
1981 Pontiac Grand Prix LJ
A personal G-body project built around the style of the 1981 Grand Prix LJ and a complete 1987 Buick Grand National drivetrain—one of the most distinctive cars from the original Master Customs archive.
What was a 1981 Grand Prix LJ from the factory?
The Pontiac Resource Center now documents the 1978–1987 Grand Prix separately from this modified build.
Open factory Grand Prix guide →G-body powertrains & swap context
Engine sourcing, transmissions, chassis commonality and why a Buick turbo drivetrain works so naturally in this platform.
Open Pontiac tech guide →Factory character, serious drivetrain.
The modern page separates the factory Grand Prix history from the personal build. The G-body reference center explains the model; this page documents what was done to this specific car.
1981 Pontiac Grand Prix LJ foundation
Personal-luxury G-body styling and the specific year/trim details that made this car the starting point.
1987 Buick Grand National drivetrain
The defining mechanical change in the build, preserved from the original Master Customs description.
Restoration and performance direction
Photos, component details and future updates can be added here as the archive is reconstructed.



