MAN Piston Sets - 4 Cyl

Manley Performance MAN Piston Sets – 4 Cylinder Manley Performance MAN Piston Sets for 4-cylinder engines deliver race-proven strength, precision, and reliability for street, strip, and track applications. Built from premium materials and machined to exacting tolerances, these pistons optimize power, efficiency, and longevity. Key Features 2618 Alloy Forgings – Made from domestic 2618 forgings for superior fatigue resistance and high-temperature strength under boost and high RPM conditions. Chrome Moly Wrist Pins – Standard Chrome Moly pins provide durable, low-wear operation; select SKUs offer upgrades to 9310 or Turbo Tuff/DLC for extreme-duty builds. Precision Ring Lands & Grooves – Strict machining standards ensure optimal ring seal and improved combustion efficiency, translating to more usable power and lower blow-by. Cam & Barrel Skirt Profiles – Engineered cam and barrel (skirt) profiles reduce friction, protect cylinder walls, and support aggressive cam timing and high-lift applications. Unique Fixturing Process – Manley’s proprietary fixturing machines skirt turning and ring groove cuts in a single setup for perfect groove-to-skirt squareness and consistent performance. Choose MAN Piston Sets for a balanced combination of strength, precision machining, and upgrade options tailored to high-performance 4-cylinder builds. Ideal for turbocharged, high-RPM, and competition engines where durability and power matter most.