Buick Skylark Gran Sport, GS and GSX specifications by year

Independent · Source-led · American performance history Issue 01 · 1951–2023

Brochure spread: silver 1965 Buick Skylark sport coupe, rear three-quarter, with a couple at the Portland Rose Festival — 1965 Buick Skylark, from the 1965 Buick full-line brochure

1965

Measure	Value	Applies to
Wheelbase	115 in	Skylark two-door
Overall length	203.4 in	Skylark Gran Sport
Curb weight, test car	3,700 lb	Car Life test car with automatic and air conditioning

1966

Measure	Value	Applies to
Wheelbase	115 in	all intermediates

1967

Measure	Value	Applies to
Wheelbase	115 in	GS 400
Overall length	205 in	GS 400
Curb weight, GS 400 automatic	3,817 lb	as listed by Motor Trend; 4-speed 3,747 lb

1968

Measure	Value	Applies to
Wheelbase	112 in	two-door bodies
Overall length	200.7 in	GS 400 hardtop
Curb weight, GS 400 Stage 1 test car	3,648 lb	Car Life test car

1969

Measure	Value	Applies to
Wheelbase	112 in	two-door bodies
Overall length	200.7 in	all coupes

1970

Measure	Value	Applies to
Wheelbase	112 in	GS two-door bodies
Overall length	200.7 in	GS 455 coupe as listed by Motor Trend
Stage 1 standard axle ratio	3.64 :1	Stage 1, automatic and 4-speed

1971

Measure	Value	Applies to
Wheelbase	112 in	two-door bodies
Overall length	203.2 in	two-door bodies
Stage 1 axle ratio	3.42 :1	Stage 1, stick or automatic

1973

Measure	Value	Applies to
Curb weight, Century 350	3,718 lb	Century 350 coupe as given by Hemmings
Standard axle ratio	3.08 :1	Gran Sport; Stage 1 3.42

1975

Measure	Value	Applies to
Wheelbase	112 in	Century coupes

Each year's heading links to that model year's full fact sheet. Specification labels are carried as recorded and not normalized across years, so the same measure may be worded differently from one year to the next.