Company History
1918

Harry Weslake is granted the patent on the Wex carburettor.

1929

Bentley's take the first four places at Le Mans using engines heavily modified by Harry Weslake on instruction of W.O. Bentley.

1930's

Weslake employed by Jaguar to modify “The Standard” engines to achieve first 100 mph production cars – the SS-100.

1947

New Jaguar twin cam engine designed incorporating Weslake patents.

1950's

Weslake design the famous ‘A', ‘B' & 'C' series lean burn cylinder heads fitted to millions of Austin & Morris motor vehicles. They are outright winners of “Mobil Economy Run” challenge for consecutive years during the 1950's & 1960's.

1950's

Weslake involved in design of Formula 1 cylinder heads throughout 1950's & 1960's for Connaught, BRM, Vanwall, Lotus and Cooper.

1950's

Weslake first to achieve full multi fuel capability on Rolls Royce and other diesel engines for MOD.

1951

XK-120C Jaguar finishes first at Le Mans incorporating Weslake patented cylinder head layout.

1953

C-type Jaguar finishes first at Le Mans incorporating Weslake patented cylinder head layout.

1954

D-type Jaguar finishes first at Le Mans incorporating Weslake patented cylinder head layout.

1955

D-type Jaguar finishes first at Le Mans incorporating Weslake patented cylinder head layout.

1956

D-type Jaguar finishes first at Le Mans incorporating Weslake patented cylinder head layout.

1957

D-type Jaguar finishes first at Le Mans incorporating Weslake patented cylinder head layout.

1967

Eagle Weslake wins Belgium Formula 1 and race of champions at Brands Hatch.

1968

Ford GT40 MK1 fited with Weslake cylinder head wins at Le Mans.

1969

Ford GT40 MK1 fited with Weslake cylinder head wins at Le Mans.

1970's

Weslake prepare engines for many of the World Offshore Powerboat racers including World Championship winning team driven by Bobby Gentry.

1970

Weslake manufacture the Cologne RS2600 engine fitted to the Ford Capri.

1972

Weslake Ford Capri wins its class at Le Mans and won all but one round of the European Touring car championship outright in the same year.

1976

Peter Collins wins the 1976 Speedway World Final on a Weslake bike. Harry Weslake awarded Segrave Medal.

1978

Harry Weslake died.

1980

Design of the Hesketh 1000cc V Twin Motorcycle engine.

1981

Bruce Penhall wins first of his two World Speedway Finals on Weslake.

1987

Design and manufacture range of ultra-light 4 stroke horizontal twins that are used to power UAV and microlight aircraft.

1989

Weslake design and manufacture first known successful series of Scotch Yoke engines. These were featured on BBC's “Tomorrows World” and fully evaluated by Volkswagen and Ford (USA).

1993

Design of 62HP ultra-light 4 stroke twin for light aircraft applications (made under license in USA).

1995

Design Excelsior Henderson V twin Motorcycle engine.

1996

Commence design of Opposed Piston Diesel engine for Client as Continental O-200 replacement. This engine used in various small airship, UAV and light aircraft applications.

2001

Design and manufacture super-lightweight (29kg) 60HP 4 stroke twin for Military UAV application.

2006

Weslake instructed by client to design light-weight Opposed Piston diesel engine as alternative powerplant to Rotax 912 S.

2013

The many years experience designing and testing various sizes of light weight Opposed Piston Diesel engines from 80 to 750HP for various applications have led to a decision by Weslake management to manufacture their own range of these ultra-lightweight fuel efficient diesel engines.

2014

Weslake undertakes to complete the design and development of a very lightweight 3 cylinder diesel engine.

2016

Weslake completes development of its own range of very lightweight heavy fuel power plants and continues testing in specialist applications.