Vanwall straight-four engine

The Vanwall 254 is a four-stroke 2.2–2.5 L (130–150 cu in) DOHC naturally-aspirated straight-four engine, designed, developed and built by British manufacturer Vanwall, for the Vanwall Grand Prix series of cars, between 1954 and 1960.^[4][5]

Vanwall 254[1][2]
Overview
Manufacturer	Vanwall
Production	1954–1960
Layout
Configuration	I4,
Displacement	2.2–2.5 L (134–153 cu in; 2,200–2,500 cc)
Cylinder bore	86–96 mm (3.4–3.8 in)
Piston stroke	86 mm (3.4 in)
Cylinder block material	Aluminum
Cylinder head material	Aluminum
Valvetrain	8-valve, DOHC, two-valves per cylinder
Combustion
Fuel system	Carburetor Fuel injection
Oil system	Dry sump
Cooling system	water-cooled
Output
Power output	210–308 hp (157–230 kW)
Torque output	170–215.8 lb⋅ft (230–293 N⋅m)[3]
Dimensions
Dry weight	~ 163 kg (359 lb)