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You are here: Home > Shop by Brand > Cosworth > Stroker Kits
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Cosworth Stroker Kits

Increased displacement means increased performance. A Cosworth stroker kit is the perfect way to add power and torque to your high performance vehicle. Each kit includes select, matched motorsport grade components ensuring maximum performance and a key factor often overlooked; Reliability. Each kit features billet or forged steel, fully counter weighted crankshaft for smooth, high revving operation. The kit is finished with Cosworth forged steel connecting rods, forged pistons, and a complete set of Cosworth bearings. Each stroker kit is engineered to have the perfect bore to stroke ratio, yielding potentially big gains in torque while still allowing the engine to rotate and produce power in the higher rpm range. Add a set Cosworth CNC Ported Big Valve Cylinder heads and complete your stroked motor by providing maximum air flow to the stout bottom end.

Product Features:
  • Cosworth Forged Pistons
  • Cosworth Fully Counterweighted Billet or Forged Crankshaft
  • Cosworth Forged Connecting Rods
  • Cosworth Rod Bearings
  • Cosworth Main Bearings
  • Cosworth Piston Rings
  • Balanced assembly to ensure smooth and reliable performance

Applications available for Stroker Kits
Part Number Engine Code Engine Type Displacement Stroke Notes
KK3831 4G63 2.0L DOHC 2.2L 94mm Billet Crank
20007783 4B11T 2.0L DOHC 2.2L 94mm Billet Crank
Part Number Engine Code Engine Type Displacement Stroke Notes
20002501 EJ20 WRX STI 2.0L DOHC 2.2L 79mm Forged Crank
20002502 EJ20 WRX STI 2.0L DOHC 2.2L 79mm Billet Crank
20002500 EJ25 WRX STI 2.5L DOHC 2.6L 81mm Billet Crank
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