Wiseco K426B100 540 Stroker Pro Series Forged Piston Set 4.600 Bore 38cc Dome

Forged from aerospace-grade 2618 aluminum alloy, these pistons deliver exceptional strength, fatigue resistance, and thermal stability under the extreme conditions of race and high-output street engines.

Featuring an open chamber dome design with a 38cc dome volume, the K426B100 is purpose-built for open chamber cylinder heads, targeting elevated compression ratios in stroker configurations. The pistons are designed to fit a 9.750-inch deck height, making them a precise match for common stroker short block builds.

Key Features:

• 2618 forged aluminum alloy construction for maximum strength and durability
• Open chamber dome profile with 38cc dome volume
• Designed for 540 and stroker Big Block applications
• Fits 9.750-inch deck height
• Nitrous compatible — reinforced design handles the thermal and pressure demands of nitrous oxide injection
• Full round-type skirt design for improved stability and reduced friction
• Includes chromoly wrist pins and Spirolox retainers
• Rings sold separately — recommended ring set: W860L8-4600-5

Wiseco Pro Series pistons are precision CNC-machined to tight tolerances and incorporate strength provisions for forced induction and nitrous applications. Built and engineered in the USA, the K426B100 is the trusted choice for serious engine builders seeking a proven forged piston for maximum-displacement Big Block stroker combinations.