Wiseco K0159B105 Big Block Chevy Brodix SR20 Hollow Dome Forged Piston Set 23cc 1.120 CH

The Wiseco K0159B105 is a Quick 8 Series forged piston set designed specifically for Big Block Chevrolet engines built around Brodix SR20 cylinder heads. This set features a 23cc hollow dome, a 1.120" compression height, and a 4.605" bore diameter, making it an ideal choice for high-performance street and drag race applications where precise compression ratios are required. This is a build-to-stock (custom order) item produced to match your specific engine specifications.

Key Features:

• 2618 High Strength Alloy forging for maximum durability under extreme cylinder pressures
• ArmorGlide® Skirt Coating reduces friction and minimizes skirt wear for longer service life
• Vertical Gas Ports for consistent, positive ring seal under high-load conditions
• Anti-detonation and pressure seal grooves for improved reliability in high-compression builds
• .180" Tool Steel wall wrist pin with Double Spirolox® retainers included (S726 — .990" x 2.930")
• 23cc Hollow Dome design optimized for Brodix SR20 cylinder head combustion chamber geometry
• 1.120" Compression Height — build-to-stock configuration
• 4.605" Bore Diameter (+.005" oversize)
• Strutted skirt design for added strength and piston stability
• Rings sold separately — refer to Wiseco's recommended ring set for this bore size

Wiseco's Quick 8 Series pistons are engineered and manufactured in the USA and are purpose-built to work with the aggressive port geometry of Brodix SR20 20° cylinder heads, commonly found in high-displacement Big Block Chevy race engines in the 598–605 cubic inch range. Whether building for naturally aspirated performance or a power-adder application, the K0159B105 delivers the precision, strength, and consistency that serious engine builders demand.