About: Weslake V12 engine

The Weslake V12 engine family is a series of four-stroke, 60-degree, naturally-aspirated, V-12 racing engine, designed, developed and produced by Weslake; between 1966 and 1992. The engine started life Weslake 58, as a naturally aspirated 3-litre 12-cylinder engine developed at Weslake in 1966. The engine had a four-valve cylinder head and a high compression ratio of 12:1. This engine was the first true four-valve engine of the new 3-litre Formula 1 engine formula, in force from 1966. The high-revving racing engine had a high piston speed of 21.1 m/s. Due to the small cylinder spacing, the engine had a long stroke: With a bore of 72.8 mm and a stroke of 60.3 mm, the Weslake 58 was the racing engine with the smallest bore and the longest stroke of its time. In its original form, the engine