Manley BMW N55/S55 37cc Platinum Series Dish Piston Set

Manley's Platinum Series pistons start with domestic 2618 alloy forgings, a material chosen for its exceptional strength and ability to handle high performance demands. These pistons feature a 37cc dish volume, designed to work with specific engine builds for optimal compression ratios. The cam and barrel skirt profiles are carefully engineered to generate significant power while also minimizing wear on your cylinder walls, a detail many professional engine builders rely on.

You'll find exacting standards applied to the ring lands and grooves, which is crucial for achieving a solid ring seal. This improved seal means more consistent power delivery and better overall engine efficiency. Manley's unique fixturing process allows them to machine the skirt and ring grooves in one operation, ensuring perfect squareness between the two. This attention to detail contributes to the durability and performance that professional tuners expect from their engine components.

Included with these pistons are premium chrome moly wrist pins, known for their robustness. For those pushing the limits, Manley offers upgrades to even stronger alloys. These pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.