Wiseco K0243A6 BBC 396/427/454/502 Forged Piston Kit Dome 25cc 1.270 CH

The Wiseco K0243A6 is a forged piston kit engineered for Big Block Chevrolet 396, 427, 454, and 502 cubic inch engines. Featuring a 25cc dome and 1.270-inch compression height, this kit is built to stock dimensions while delivering the strength and durability advantages of a forged construction over cast alternatives.

Key Features:

• 2618 high-strength aluminum alloy forging for superior tensile strength and durability under high-performance conditions
• 25cc closed-chamber dome design optimized for improved flame travel and combustion efficiency
• 1.270-inch compression height engineered to stock build specifications
• ArmorGlide® skirt coating reduces friction, resists seizure, and promotes quieter operation
• Vertical gas ports for improved ring seal and blowby reduction
• Anti-detonation and pressure seal grooves for enhanced ring seating and longevity
• Tool steel wrist pin and Double Spirolox® locks included for secure, reliable pin retention
• Engineered, forged, and machined in the USA

Kit Includes: 8 forged pistons, 8 wrist pins, and 8 sets of Spirolox® locks. Rings are sold separately.

Wiseco is the only major aftermarket piston manufacturer in the United States that produces pistons exclusively via the forging process, resulting in components that are stronger, lighter, and more durable than cast alternatives — ideal for street/strip and high-performance builds on the classic Big Block Chevy platform.