The 1969 Buick Grand Sport, was a near carryover of the 1968
Buick GS. However, now you could order the powerful Stage 1
upgrade straight from the factory.
The "Stage 1" was an option that turned the Buick GS
into a true quarter mile hero and was a sign of things to come for
Buick fans. The Stage 1 package included a hotter camshaft, functional
ram-air,11.0:1 compression, upgraded valve springs, modified Quadrajet
carb, 3.64:1 positraction axle, and a reworked TH-400 transmission
that had higher shift points and firmer engagements. Stage 1 cars
also had heavy-duty Rallye suspension and power disc bakes.The special
package knocked off nearly 1 second in the quarter mile and added
nearly 50 hp over the base 400. Not suprisingly, Stage 1 Buick's
are highly collectable today.