Wiseco K493B6 Professional Series Forged Piston Set

The Wiseco K493B6 is part of the Professional Series — Wiseco's flagship forged piston line engineered for serious racers and high-performance engine builders. Forged from high-grade 2618 aluminum alloy, these pistons deliver superior strength and resilience under extreme heat and pressure, making them the go-to choice for heavy to severe duty race builds capable of supporting 1,500+ horsepower applications.

Engineered, forged, and precision CNC-machined in the USA at Wiseco's Mentor, Ohio facility, the K493B6 Professional Series pistons incorporate race-proven design elements developed through Wiseco's involvement in Formula 1, Indy Racing League, NHRA Pro Stock, MotoGP, and AMA Superbike competition.

Key Features:

• 2618 High-Strength Aluminum Alloy: Provides superior tensile strength and resistance to thermal fatigue compared to standard 4032 alloy, ideal for turbocharged, supercharged, and nitrous applications
• Fully Machined Crown: Precision-machined piston crown with optimized valve pocket geometry for maximum intake charge flow, compatibility with oversized valves, and high-lift camshafts
• ArmorGlide Skirt Coating: Wiseco's proprietary anti-friction skirt coating — developed and benchmarked through their in-house dyno program — reduces operating friction, minimizes cylinder wall wear, allows tighter bore fitment, and quiets piston rock for a more stable, efficient engine
• Precision Ring Grooves: CNC-machined to exacting tolerances with optimized orifice and accumulator volume for maximum ring seal, minimal blow-by, and reduced oil consumption
• Complex Skirt Profile: Engineered to reduce friction while maintaining piston stability in the bore for consistent ring seal throughout the RPM range
• Lateral Gas Porting: Enhances top ring sealing under high cylinder pressure conditions
• Chromoly Wrist Pins & Spirolox Retainers Included: Premium hardware included for a complete, race-ready installation
• ISO-Certified Forging Facility: Manufactured using advanced forging techniques with grain-flow-aligned technology for maximum structural integrity

The Professional Series is the pinnacle of Wiseco's automotive piston lineup — purpose-built for performance builds that demand more than off-the-shelf components can deliver. Whether you're building a track-only race engine or a high-boost street/strip powerplant, the K493B6 provides the strength, precision, and coating technology to maximize horsepower and protect your investment.