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2.5L 16v - S14B25

2.5L 16v - S14B25 

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2.5L 16v - S14B25

The S14B25, the 2.5 16v four cylinder of the BMW M3 E30, is covered here from the bottom end to the cylinder head.

  • Forged pistons, including a version for the 149.70mm BMW rods
  • Forged crankshaft and forged connecting rods for forged pistons
  • ARP main studs
  • CATCAMS camshafts and mechanical cam followers
  • Performance intake and exhaust valves, springs, retainers, guides and stem seals
  • Tri-metal big end bearings

The reinforced head gasket, the head studs and the ARP con rod bolts listed here are specified for the S14B23.