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PISTON KIT GM SPEEDWAY 90.00, WOSSNER 8811DA A
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PISTON KIT GM SPEEDWAY 90.00, WOSSNER 8811DA A

PISTON KIT GM SPEEDWAY 90.00, WOSSNER 8811DA A

$418.00
PISTON KIT GM SPEEDWAY 90.00, WOSSNER 8811DA A—
$418.00

The Story

This Wossner forged piston kit with a 90mm bore is a standard replacement designed for all Speedway applications, specifically GM Speedway 499cc engines. Made in Germany, the piston is built for strength and efficient heat dissipation. Its elliptical profile ensures even load distribution under heat expansion, minimising stress and helping to prevent piston failure.



Features





  • Forged construction for maximum strength and durability




  • Designed for efficient combustion heat transfer to cylinder walls




  • Elliptical profile ensures uniform bearing surface under thermal expansion




  • Even distribution of thrust loads reduces localised pressure




  • Manufactured in Germany





Specifications





  • Bore: 90.00mm (Standard)




  • Actual bore: 89.92mm




  • 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.A




  • 8811DA




  • 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 8811DA A - Image 2

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

PISTON KIT GM SPEEDWAY 90.00, WOSSNER 8811DA A - Image 3

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

PISTON KIT GM SPEEDWAY 90.00, WOSSNER 8811DA A - Image 4

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Description

This Wossner forged piston kit with a 90mm bore is a standard replacement designed for all Speedway applications, specifically GM Speedway 499cc engines. Made in Germany, the piston is built for strength and efficient heat dissipation. Its elliptical profile ensures even load distribution under heat expansion, minimising stress and helping to prevent piston failure.



Features





  • Forged construction for maximum strength and durability




  • Designed for efficient combustion heat transfer to cylinder walls




  • Elliptical profile ensures uniform bearing surface under thermal expansion




  • Even distribution of thrust loads reduces localised pressure




  • Manufactured in Germany





Specifications





  • Bore: 90.00mm (Standard)




  • Actual bore: 89.92mm




  • 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.A




  • 8811DA




  • Pin Part Number: WP174




  • Ring Set Part Number: 900ADS-2





Vehicle Fitments





  • Speedway (All Models)




  • GM Speedway 499cc