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

Manley Platinum Series Pistons – 2618 Forged Power for Maximum Durability

The Manley Platinum Series pistons are built for high-performance engines demanding unmatched strength and precision. Forged from premium 2618 aluminum alloy, these pistons feature advanced cam and barrel skirt profiles, tool steel wrist pins, and moly skirt coatings on select part numbers—ideal for turbocharged, supercharged, and high-RPM naturally aspirated builds.

Trusted by professional engine builders worldwide, these pistons deliver excellent ring seal, reduced friction, and race-ready durability.

Key Features:

• 2618 Alloy Forgings for superior strength under extreme pressure and heat

• Chrome Moly Wrist Pins standard, with upgrades to 9310 or DLC Turbo Tuff pins on select SKUs

• Precision-Machined Ring Lands for tight seal and improved power output

• Cam and Barrel Skirt Profiles reduce drag while protecting cylinder walls

• Unique One-Pass Machining process guarantees perfect ring groove to skirt alignment

Perfect for: Boosted, nitrous-fed, and high-horsepower applications requiring pro-level piston performance.