Triumph Spitfire MkIV 1970-74 specifications

Engine
OHV 4 Cylinder in line
Bore: 73.7mm
Stroke: 76mm
Displacement: 1,296cc
Compression ratio: 9 :1
Carburettors: Twin SU HS2
Power output: 63bhp at 6,000rpm

Performance
Maximum speed: 90 mph
(96mph for later cars)
Acceleration: 0-60mph 12.5secs
(14.4 for later cars)
Overall fuel consumption:
approx 38mpg

Transmission
Clutch: Borg & Beck single dry plate
Gearbox: 4-speed, all synchromesh
D type overdrive optional
Final drive ratio: 3.89:1

Steering
Rack and pinion Turning circle: 24ft
3.5 turns lock to lock

Wheels
Bolt-on 13in x 4.5J pressed steel ventilated disc
Centre lock wire wheel option

Suspension
Front: upper and lower wishbones,
coil springs, anti roll bar
Rear: independent, swing axle radius arms, pivoting transverse leaf spring
Telescopic dampers front & rear

Brakes
Front: 9in disk
Rear: 7in x 1.25in drums

Construction
All metal steel body on
backbone frame

Dimensions & Weight
Wheelbase: 6ft 11in
Track - front: 4ft 1in(2in late)
Track - rear: 4ft 1in
Overall length: 12ft 9in
Overall width: 4ft 10in
Overall height: 3ft 1.5in
Unladen weight: 15.33cwt
Tank capacity: 7.25 Imp gallons

Production
Mk IV Nov 1970 - Dec 1974: 70,021
Total of all Spitfire variants: 314,332