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PISTON KIT GM SPEEDWAY 90.00, WOSSNER 8811DC C

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PISTON KIT GM SPEEDWAY 90.00, WOSSNER 8811DC C

PISTON KIT GM SPEEDWAY 90.00, WOSSNER 8811DC C

This Wossner forged piston kit with a 90.02mm bore (+0.02mm oversize) is designed for all Speedway applications, including GM Speedway 499cc engines. Manufactured in Germany, it features a high-strength forged design and optimised thermal characteristics. The elliptical piston profile ensures even expansion and pressure distribution, reducing stress and preventing collapse under demanding operating conditions.



Features





  • Forged construction for superior strength and thermal stability




  • Engineered for efficient heat transfer from combustion to cylinder walls




  • Elliptical profile ensures a uniform bearing surface during heat expansion




  • Evenly distributes thrust loads to prevent localised pressure




  • Manufactured in Germany





Specifications





  • Bore: 90.02mm (+0.02mm Oversize)




  • Actual bore: 89.94mm




  • Display volume: 499 cm³




  • Stroke: 78.50mm




  • Clearance: 0.08mm




  • Dome volume: +5.60 cm³




  • Compression height: 22.00mm





Cross-Reference OEM Part Numbers





  • 56-W9841.C




  • 8811DC




  • Pin Part Number: WP174




  • Ring Set Part Number: 900ADS-2





Vehicle Fitments





  • Speedway (All Models)




  • GM Speedway 499cc



$553.47
PISTON KIT GM SPEEDWAY 90.00, WOSSNER 8811DC C
$553.47

Product Information

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Description

This Wossner forged piston kit with a 90.02mm bore (+0.02mm oversize) is designed for all Speedway applications, including GM Speedway 499cc engines. Manufactured in Germany, it features a high-strength forged design and optimised thermal characteristics. The elliptical piston profile ensures even expansion and pressure distribution, reducing stress and preventing collapse under demanding operating conditions.



Features





  • Forged construction for superior strength and thermal stability




  • Engineered for efficient heat transfer from combustion to cylinder walls




  • Elliptical profile ensures a uniform bearing surface during heat expansion




  • Evenly distributes thrust loads to prevent localised pressure




  • Manufactured in Germany





Specifications





  • Bore: 90.02mm (+0.02mm Oversize)




  • Actual bore: 89.94mm




  • Display volume: 499 cm³




  • Stroke: 78.50mm




  • Clearance: 0.08mm




  • Dome volume: +5.60 cm³




  • Compression height: 22.00mm





Cross-Reference OEM Part Numbers





  • 56-W9841.C




  • 8811DC




  • Pin Part Number: WP174




  • Ring Set Part Number: 900ADS-2





Vehicle Fitments





  • Speedway (All Models)




  • GM Speedway 499cc



PISTON KIT GM SPEEDWAY 90.00, WOSSNER 8811DC C | SMXOFFROAD Ltd