Wiseco K0037X05 Chrysler 6.1L Hemi Forged Piston -13cc R/Dome 4.060 Bore 1.080 CH

The Wiseco K0037X05 is a Professional Series forged piston engineered for the Chrysler 6.1L Hemi engine. Designed for serious engine builders and racers, this single piston features a -13cc reverse dome (R/Dome) crown profile and a 1.080-inch compression height, making it ideal for stroker applications targeting stock-style compression ratios.

Manufactured from 2618 high-strength aluminum alloy, this piston is forged and precision-machined at Wiseco's facility in Mentor, Ohio. The forging process aligns the grain structure of the aluminum, resulting in superior strength, impact resistance, and fatigue life compared to cast alternatives — critical qualities for high-output and forced-induction builds.

Key Specifications:

• Bore: 4.060 inches
• Compression Height (CH): 1.080 inches
• Dome Volume: -13cc (Reverse Dome)
• Wrist Pin Diameter: 0.866 inches (floating pin type)
• Ring Grooves: 1.2mm / 1.2mm / 3.0mm
• Piston Weight: 435g
• Compression Ratio: Approximately 10:1 with a 73cc chamber

Key Features:

• ArmorGlide Skirt Coating — reduces friction, resists seizure, and quiets operation
• Fully machined crown features for precise combustion chamber geometry
• Precision ring grooves for superior ring seal and reduced blow-by
• Floating pin design — requires compatible aftermarket connecting rods; not compatible with stock connecting rods
• Engineered and manufactured in the USA

The K0037X05 is a shelf-stock Professional Series piston built to withstand heavy to severe-duty race conditions. It pairs with the Chrysler 6.1L third-generation Hemi architecture and is an excellent foundation for stroker builds seeking a reliable, high-performance bottom end.