Wiseco BMW M52B28 2.8L 24V Turbo 84.5mm Bore +.50 Oversized 8.0:1 CR Pistons

When you're building a serious performance engine for your BMW M52B28, starting with the right pistons is crucial. This set from Wiseco includes six forged pistons, each measuring 84.50 mm in bore diameter and designed for a +.50 oversized application. They feature a 31.80 mm compression height and a 0.866-inch pin diameter, with a compression ratio of 8.0:1, making them well-suited for turbo applications where precise control over combustion is key.

These aren't just any pistons; they're part of Wiseco's Professional Series, built from 2618 aluminum for improved tensile strength. The machining process in the USA includes precision ring grooves, anti-detonation grooves, and features designed for additional ring seal. You'll also find an ArmorGlide skirt coating, which helps reduce friction and noise while resisting seizure. The fully machined crown and forced pin oiling further contribute to their durability under heavy to severe duty performance conditions.

Keep in mind that these pistons are not CARB approved and cannot be shipped to California. For builders aiming for maximum performance and reliability in their M52B28 turbo build, this set offers a solid foundation.