Shifterati

BMW S14 engine

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The E30 M3's four-cylinder racing engine from 1986 to 1991, an M10 block with a shortened six-cylinder M head.

The story

History: facts, each with its source

BMW built the S14 from 1986 to 1991. It pairs the M10 block with a shortened version of the S38 six's twin-cam head. The first 2.3L made 192 hp with a catalyst, and the later EVO2 212 hp.1

  • Block and head: Cast-iron block, aluminium head1
  • Valvetrain: Twin overhead cams1

Sources

  1. Wikipedia (S14)