Wiseco Pistons K495B110 Pistons - Professional Series

The Wiseco K495B110 is a Quick 8 Series Professional forged piston set built for serious Big Block Chevrolet race and high-performance street/drag applications. Designed specifically for 18-degree cylinder heads, these pistons feature an 18-degree solid dome (+15.6cc) configuration with a 4.610-inch bore, 1.065-inch compression height, and a .990-inch wrist pin diameter. Engineered for a 9.750 deck height, they are compatible with a 4.375-inch stroke and 6.535-inch rod length. This set is sold as 8 pistons and includes wrist pins (S462). Rings are sold separately — recommended ring set: W77008-4610-5.

Key Features:

• 2618 high-strength aluminum alloy forging delivers superior tensile strength and resilience under extreme heat and pressure
• Gas ported design with vertical gas ports improves ring seal and reduces blow-by for maximum combustion efficiency
• 18-degree solid dome crown engineered for optimal quench and detonation resistance with 18-degree cylinder head applications
• Naturally aspirated and nitrous compatible — rated for high-output N/A and power-adder builds
• Anti-detonation and pressure seal grooves maintain consistent ring seal and protect against pre-ignition under aggressive tune-up conditions
• Strutted skirt design reduces reciprocating weight while maintaining bore stability for optimum ring seal
• ArmorGlide skirt coating reduces operating friction, minimizes skirt and cylinder wall wear, and allows tighter piston-to-wall clearances for quieter, more efficient operation
• Precision-machined ring grooves with calculated groove root diameters and axial widths ensure maximum ring seal and minimal blow-by and oil consumption
• .180 toolsteel wrist pin with Double Spirolox retention — wrist pins (S462) included
• Engineered, forged, and machined in the USA at Wiseco's Mentor, Ohio facility

The Quick 8 Series targets high-performance street and drag race builds using 18-degree BBC cylinder heads, offering a no-compromise combination of forged strength, gas porting technology, and ArmorGlide coating. Rings are sold separately; the recommended ring set is W77008-4610-5.