Austin Twenty-Eight (1938 - 1939)
Details
| Configuration | Straight 6-cylinder |
|---|---|
| Displacement | 4,016 cc (245 cu in) |
| Cylinder bore | 86.36 mm (3.400 in) |
| Piston stroke | 114.3 mm (4.50 in) |
| Block material | Cast iron. Aluminium pistons with anodised surfaces. Four-bearing crankshaft with a vibration damper. |
| Head material | aluminium, detachable |
| Valvetrain | inclined side valves, inlet larger than exhaust, pressure lubrication for the tappets |
| Combustion | |
| Fuel system | downdraught carburettor, coil ignition with automatic advance |
| Oil system | floating filter pick up for the oil pump and anti-surge valve |
| Cooling system | forced water circulation thermostatically controlled |
| Output | |
| Power output | 90 bhp (67 kW; 91 PS) @3,200 rpm Tax horsepower 27.75 |