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Cosworth

Cosworth Forged Piston Set Focus RS Mk2

£839.95

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Description

Cosworth Forged Piston Set Focus RS Mk2

Part No. 20019840
Engine typ Focus RS Mk2 and Focus ST 5cyl Turbo
OE Bore size 83mm
Bore sizes available 83mm
Engine CC 2521.34cc
Stroke 93.2mm
Cosworth Comp. ratio 8.5:1
OE Comp. ratio 8.5:1 (RS) 9.0:1 (ST)
Comp. height 28.4mm
Valve per Cylinder 4
Cylinders 5
Reccomended Piston to Bore clearance 0.08



Pistons have been designed with 21mm gudgeon pins. Ideal for maximum performance with out sacrificing strength.
Focus ST / XR5 customers will need to use an aftermarket steel rod. Focus
RS customers can use OE rods without issue.

* Focus RS Mk2 engines have an OE comp ratio of 8.5:1. Focus ST engines have an OE comp ratio of 9.0:1. 
This piston gives 8.5:1 on both engine types

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