Wiseco 6477B6 BBC Quick 16 Forged Piston +40cc Dome 4.500 in. Bore 1.060 in. CH

The Wiseco 6477B6 is a shelf-stock, single replacement piston from Wiseco's Quick 16 Series, designed for high-performance and drag race Big Block Chevrolet applications. Featuring a 4.500-inch bore, 1.060-inch compression height, and a +40cc dome, this piston is purpose-built for big-valve, big cubic inch Sportsman-class and bracket race engines.

Key Features:

• 2618 High-Strength Alloy — forged for superior tensile strength and heat resistance under race conditions
• +40cc Semi-Hollow Dome — profiled for proper flame travel and optimized compression ratios with conventional 24° BBC cylinder heads
• ArmorGlide® Skirt Coating — reduces friction, resists seizure, and promotes quieter operation
• Vertical Gas Ports — improves ring seal and combustion efficiency
• Anti-Detonation & Pressure Seal Grooves — 15-point Pro Stock-style grooves enhance ring seating and sealing
• Strutted Skirt Design — lightweight construction without sacrificing durability
• Reinforced Deck — built to withstand nitrous oxide and other power adder applications
• .180 Toolsteel Wall Wrist Pin & Double Spirolox® Included — premium pin hardware included with each piston
• Shelf Stock / Individual Replacement Piston — sold as a single unit for replacement or custom builds

Rings are sold separately. The recommended ring package uses .043 / 1/16 / 3/16 ring grooves. Engineered, forged, and machined in the USA at Wiseco's Mentor, Ohio manufacturing facility, the Quick 16 Series delivers Pro Stock-inspired technology for serious racers competing in weekly bracket events through Super 16 Shootouts.