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
Product Information
Product Information
Shipping & Returns
Shipping & Returns




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
Product Information
Product Information
Shipping & Returns
Shipping & Returns
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





















