Manley 597200CE-8 Extreme Duty Forged Piston Set 5.7L Hemi 3.917" Bore 4.050" Stroker

The Manley 597200CE-8 Extreme Duty forged piston set is engineered for high-performance Chrysler 5.7L Hemi stroker builds. This complete 8-piston set features a 3.917-inch bore diameter and is designed for 4.050-inch stroke applications with 6.125-inch connecting rods, making it ideal for builders looking to increase displacement and power output.

Key Features:

• Forged from high-strength 2618 aluminum alloy for exceptional durability under extreme conditions
• Flat top design with -1.5cc volume optimizes combustion efficiency
• Extreme Duty Series includes 9310 alloy wrist pins with .210-inch wall thickness (P/N 42542)
• 0.927-inch wrist pin diameter for superior strength and reliability
• Unique single-fixturing manufacturing ensures perfect ring groove to skirt squareness for maximum horsepower
• Pressure balance grooves and roundwire locks included at no additional charge
• Forced pin oiling and precision pin fitting for enhanced lubrication and longevity

High-Performance Ring Set Included:

• Top ring: High-performance ductile iron with plasma moly inlay or premium steel with Chrome Nitride face coating
• Second ring: Reverse twist cast iron design
• Oil ring: Three-piece standard tension with full oil return

This piston set delivers compression ratios of approximately 9.6:1 with 2003-2008 5.7L 85cc heads, and 12.0:1 with 2009-up 5.7L 65cc heads (calculated at .003-inch deck clearance). The Extreme Duty Series is specifically designed for forced induction, nitrous oxide, and high-RPM applications where maximum strength is critical.