PISTON KIT GM SPEEDWAY 90.00, WOSSNER 8811DA A

$499.97
1

Wossner forged piston kit with a 90.00mm bore. This piston is a standard replacement for GM Speedway 499cc engines. Manufactured in Germany, the piston features a forged construction for maximum strength and durability, and an elliptical profile for uniform bearing surface under thermal expansion. Specifications include a bore of 89.92mm, display volume of 499 cm³, stroke of 78.50mm, clearance of 0.08mm, dome volume of +5.60 cm³, and compression height of 22.00mm. Cross-reference OEM part numbers include 56-W9841.A and 8811DA. Pin part number: WP174. Ring set part number: 900ADS-2. Weight: 370g.

Specifications
SKU
56-W9841.A
Brand
Wossner
Availability
In Stock (1)
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
90.00mm
Variant Id
258885
Shipping OptionsShown at checkout
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner Forged Piston Kit 90.00mm - GM Speedway

Upgrade your GM Speedway 499cc engine with this high-performance forged piston kit from Wossner. Engineered in Germany, this piston is designed as a direct replacement, ensuring maximum strength and efficient heat dissipation for reliable performance. The advanced elliptical profile helps to distribute loads evenly, even under extreme heat, minimizing stress and preventing premature failure. This kit is built for durability and optimal combustion efficiency.

Key Features:

  • Forged construction for superior strength and longevity.
  • Optimized design for efficient heat transfer from the combustion chamber to the cylinder walls.
  • Elliptical piston profile ensures a consistent bearing surface during thermal expansion.
  • Promotes even distribution of thrust loads, reducing localized pressure points.
  • Precision manufactured in Germany to exacting standards.

Specifications:

  • Standard Bore Size: 90.00mm
  • Actual Piston Diameter: 89.92mm
  • Engine Displacement: 499 cm³
  • Stroke: 78.50mm
  • Piston Clearance: 0.08mm
  • Dome Volume: +5.60 cm³
  • Compression Height: 22.00mm

Included Components:

  • Piston
  • Pin Part Number: WP174
  • Ring Set Part Number: 900ADS-2