MGA Roadster 1955-58 (basic disc wheels)
See specifications and an old advert below illustration. To MGA page.
Page 056A
MGA Roadster 1955-59 Specifications
Engine: (BMC ‘B’ series) 4 cylinder inline, cast iron block, OHC

Bore & Stroke: 73mm x 88.9mm

Displacement: 1,488cc

Compression ratio: 8.3 to 1

Carburation: petrol, twin 1.5 H4 SU

Power output: 72bhp at 5,500rpm

Maximum speed: 95.1mph

0-60mph: 14.5secs

O.F.C.: 24.5mpg

Construction: all steel body on boxed sectioned steel chassis

Transmission: 4-speed, synchromesh on 2nd, 3rd & top, 8in Borg & Beck ingle dry-plate clutch, RWD

Propeller Shaft: Hardy Spicer open shaft, needle bearing U/Js

Rear axle: three-quarter floating with hypoid drive

Wheels: 5.6J x 15 ventilatd pressed steel (optional: centre lock wire)

Brakes: hydraulic Lockheed F: 10.75in disc, R: 10 x 1.75in drum

Steering: rack and pinion, 3 turns lock to lock

Suspension F: Ind. coil & wishbone, R: half-elliptic, leaf spring


Wheelbase: 7ft 10in

Track F: 3ft 11.5in, R: 4ft 0.75in

Overall length: 13ft

Overall width: 4ft 10in

Overall height: 4ft 1.4in

Ground clearance: 6in

Turning circle: 28ft

Kerb weight: 2,020 lb

Fuel tank: 10 Imp. gals

MGA Production:

1500 Roadster 1955-59: 52,478 built
Total all MGA 1955-1962 101,081 built