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Ford Focus ST 2.5 Duratec I5 Turbo WOSSNER Forged Piston Kit (5Cyl)

£793.33 Exc Tax

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SKU: K9489 ST Category: Tags: ,

Description

Ford Focus ST 2.5 Duratec I5 Turbo WOSSNER Forged Piston Kit (5Cyl)

Wössner is regarded by Europe’s leading motorsport engine builders as being the piston of choice when building an engine not only to perform but to withstand the stresses and duress’s of competition life. Wössner pistons feature a unique PTFE coating on the skirts and a grade of 4032 Alloy (T6) which allows the engine builder to run a closer piston to bore tolerance then he might do on another make of piston.

This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances. The crowns of the pistons are also polished to better resist detonation on a high-performance engine. Polishing allows a more even spread of heat inside the chamber which will help prevent “hot spots” on piston crowns. Price includes all piston rings and gudgeon pins. K9489

Part Number K9489
Engine Type Focus RS Mk2 & Focus ST 2.5 (using RS Rod)
OE Bore Size 83.00mm
Bore Sizes Available 83.00mm – 2521cc

83.50mm – 2551cc

Stroke 93.2mm
Dome/Bowl Volume +11.5cc
Wossner Comp. Ratio Focus RS Mk2 – 8.5:1

Focus ST Mk2 – 8.5:1

OE Comp. Ratio Focus RS Mk2 – 8.5:1

Focus ST Mk2 – 9.0:1

Comp. Height 28.4mm
Valves Per Cylinder 4
Cylinders 5

Size Options:

  • 83mm – K9489DA
  • 83.5mm – K9489D050

Please see our shop for more performance parts.

Additional information

Weight 15 lbs
Manufacturer Part Number

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