Manley BMW N55/S55 37cc Platinum Series Dish Extreme Duty Piston Set - 84.5mm Bore

Manley Platinum Series Pistons – Race-Proven Strength and Precision Engineering

Engineered for serious power and performance, Manley Platinum Series pistons are the trusted choice of top engine builders and tuners worldwide. Forged from high-strength 2618 alloy, these pistons are designed to handle extreme cylinder pressures and high-RPM abuse while maintaining tight tolerances for maximum efficiency and longevity.

With advanced cam and barrel skirt profiles, precision-machined ring grooves, and premium wrist pins, the Platinum Series is ideal for high-horsepower street builds, turbocharged setups, and competitive race engines.

Key Features:

• 2618 Alloy Forgings: High-strength domestic aluminum forgings offer unmatched durability under boost and high cylinder pressures.

• Tool Steel & Chrome Moly Wrist Pins: Standard kits include Chrome Moly wrist pins; upgrades to 9310 or DLC-coated Turbo Tuff wrist pins available for select applications.

• Optimized Skirt Profiles: Cam and barrel skirt designs enhance power while reducing cylinder wear.

• Moly Skirt Coating (on select SKUs): Reduces friction and wear during startup and operation.

• Ultra-Precise Ring Grooves: Machined with unique fixturing to ensure perfect skirt-to-ring groove squareness, maximizing ring seal and performance.

Ideal For: Forced induction, nitrous, high-RPM naturally aspirated builds, and pro-level competition engines.