PISTON KIT GM SPEEDWAY 90.00, WOSSNER K8811DE E

Wossner Forged Piston Kit 90.04mm Speedway GM

This Wossner forged piston kit is engineered for all Speedway applications, including GM Speedway 499cc engines. Precision-forged in Germany, this piston features a 90.04mm bore, which is +0.04mm oversize. The forged construction provides superior strength and optimal heat transfer capabilities, crucial for high-performance engines. Its elliptical profile is designed to promote uniform pressure distribution and expansion under thermal load, which minimizes stress and reduces the risk of piston failure.

Key Features

• Forged construction for maximum strength and performance.
• Engineered for efficient heat dissipation from combustion to cylinder walls.
• Elliptical profile ensures a consistent bearing surface under expansion.
• Reduces localized pressure and evenly distributes thrust loads.
• Manufactured in Germany for high-quality standards.

Specifications

• Bore: 90.04mm (+0.04mm Oversize)
• Actual bore: 89.96mm
• Display volume: 499 cm³
• Stroke: 78.50mm
• Clearance: 0.08mm
• Dome volume: +5.60 cm³
• Compression height: 22.00mm

Included Components

• Lock Part Number: CW21
• Pin Part Number: WP074
• Ring Set Part Number: 900ADS