Standard Flying Twelve (12c) (1939)

Standard Flying Twelve (12c) (1939)

The Car

Coming soon

The Specs

Below are the technical specifications and any performance numbers we could get.


Bore & Stroke 69.5mm x 106mm
Displacement 1608.5cc
Firing order 1,3,4,2
Oil pressure (hot)
40 lb./sq. in. at 30 mph

Fuel Supply

Carburetor Solex 30 FAI
Choke 27
Main 120
Compensating 210
Progression GA45 : GS105
Idling 45


Intake tappet clearance 0.015″ (cold)
Exhaust tappet clearance 0.015″ (cold)
Valve-timing indication Arrow on flywheel for TDC
Intake valve opens 10° BTDC


Breaker gap 0.010″ – 0.012″
Plug gap 0.040″
Ignition timing indication
Ignition timing TDC


Clutch type Borg & Beck Single Dry Plate
Clutch linings Borg & Beck Composition


Brake type Bendix
Brake linings Bendix Composition

Wheel Alignment

Toe-In Parallel to 18” Toe-OUT
Camber ⅓°
Caster angle
King pin angle 10° 8′