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I needed help with my first EVO on what to buy to upgrade my EVO safely. I contacted support and Jay helped me by pulling up the perfect site that had the answers to all of my questions! I would rate Jay's service a 5/5 for his fast response and him not having to ask many questions to find the information I needed. Thanks again!

Gabriel Lee

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Cosworth 4B11 Forged Stroker Piston Set - 87mm 10.0:1CR with 94mm crank - EVO X

Product Description

The piston is one of the most important components within the engine. It can be subjected to directional change up to 285 times every second and must withstand acceleration forces of 8500g. Coswort h high performance forged pistons are designed and engineered to withstand this type of punishment and still perform. All Cosworth pistons are manufactured using the same methods as our Formula One pistons and include features such anti scuff skirt coating, ulta-strong pins, polished top and patented anti-detonation bands. Additionally, each application uses a unique forging to minimize weight and ensure the strongest possible piston design.

Specifications:

Unique forgings for each application
Xylan Anti scuff skirt coating
Polished tops (reduced carbon build up and stress relief)
Manufactured from proprietary alloy (CosAl 010)
Ultra strong pin
Patented anti-detonation bands
Bore size = 87mm
Compression ratio 10.0:1 (High Compression)
Rings not included (use part number 20005706)
For use with 94mm stroke crankshaft (part number 20006577)

Note: this pistons is for use with a 94mm crankshaft resulting in 2.2L displacement.

This part is special order only. Please allow at least 4-8 weeks delivery
time. No express shipping is available on this part.

Details

Price: $824.00

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