Pontiac Grand Prix specs: 1969-1972

The Pontiac Grand Prix was totally redesigned for 1969, giving up it’s B-body roots and going onto the new G-body platform. Even though it was smaller than the previous fullsize-based G/P’s, this one had the longest hood ever to be put on a Pontiac. The division wasn’t pulling any punches in the power department either. Base engine was a 400 cubic engine gas gulper. There was another 400, two 428s and 455 offerings as well. Speaking of performance, eight different axle ratios were offered, atleast early-on.


Platform: G-body

Trim Levels:

base (1969-1972)

J (1969-1972)

SJ (1969-1972)

Hurst SSJ (1970-1972)

Body Styles: coupe

Wheelbase: 118.0″

F/R Track Width: 62.0″/60.0″

Overall Length:

210.2″ (1969-1970)

212.9″ (1971-1972)

Overall Width: 75.7″

Overall Height: 52.0″

Turning Circle: 46.0′

Drag Coefficient: 0.45

Curb Weight:

3715 lbs. (1969)

3784 lbs. (1970)

3863 lbs. (1971)

3898 lbs. (1972)

Available Engines:

400 CID 2bbl V8 (1969-1970)

400 CID 4bbl V8 (1969-1972)

428 CID 4bbl V8 (1969 only)

428 CID 4bbl H.O. V8 (1969 only)

455 CID 4bbl V8 (1970-1972)

Available Transmissions:

3-SPEED MANUAL (1969-1970)

4-SPEED MUNCIE M20 MANUAL

3-SPEED TH400 AUTOMATIC

Axle Ratio:

2.56

2.93

3.08

3.23

3.31

3.36

3.55

3.90

Fuel Capacity: 20.0 Gallons

Fuel Economy: 9-11 mpg

Head Room F/R: 37.5″/36.5″

Leg Room F/R: 42.4″/31.6″

Shoulder Room F/R:

Hip Room F/R:

Tires: G78-14

Wheels: 14.0″ x 7.0″