| Size | 90.00mm |
|---|---|
| Product Type | Pistons & Kits |
| Product Group | Engine |
| Catalogue | DIRT |
| Piston Diameter | 90.00 |
| Bore Diameter | |
| Piston Grade | |
| Compression Ratio |
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
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Forged construction for superior strength and thermal stability
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Engineered for efficient heat transfer from combustion to cylinder walls
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Elliptical profile ensures a uniform bearing surface during heat expansion
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Evenly distributes thrust loads to prevent localised pressure
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Manufactured in Germany
Specifications
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Bore: 90.02mm (+0.02mm Oversize)
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Actual bore: 89.94mm
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Display volume: 499 cm³
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Stroke: 78.50mm
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Clearance: 0.08mm
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Dome volume: +5.60 cm³
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Compression height: 22.00mm
Cross-Reference OEM Part Numbers
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56-W9841.C
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8811DC
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Pin Part Number: WP174
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Ring Set Part Number: 900ADS-2
Vehicle Fitments
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Speedway (All Models)
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GM Speedway 499cc
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