Wiseco K426B125 Big Block Chevy 4.125" Bore Forged Piston Set - Drag/Nitrous

The Wiseco K426B125 is a shelf-stock forged piston kit engineered for Big Block Chevrolet (BBC) drag racing and nitrous oxide applications. Wiseco's shelf-stock series delivers race-proven forged performance in a ready-to-ship package, making it an ideal choice for builders who need quality forged pistons without the lead time of a custom order.

Key Features:

• 4.125" Bore Diameter ? precision-sized for Big Block Chevy applications
• Forged Aluminum Construction ? Wiseco's high-strength forged alloy provides superior strength-to-weight ratio over cast pistons
• Drag & Nitrous Optimized ? engineered to withstand the extreme cylinder pressures generated by nitrous oxide induction systems
• Shelf Stock Availability ? ready-to-ship configuration for faster build turnaround
• Wiseco Piston Kit ? includes pistons with rings, pins, and pin locks as a complete set
• Tight manufacturing tolerances for consistent compression and ring seal across all cylinders

Wiseco has been a trusted name in performance forged pistons for over 80 years, supplying top-tier components to professional drag racers and high-performance engine builders. The K426B125 is built to handle the rigors of strip duty and the additional stress of nitrous-assisted power adders, making it a dependable foundation for your Big Block Chevy build.