Wiseco VW/Audi Turbo Conversion 20V Cyl Head 81.5mm Bore 8.5 CR Pistons (Inc Rings)

If you're building a serious turbo engine for your VW or Audi, these forged pistons from Wiseco are a solid choice. They're designed specifically for 1.8L 20V engines and come in an 81.5mm bore size with a compression ratio of 8.5:1, which is ideal for boosted applications. This set includes four pistons, along with premium rings, ready for your performance build.

Wiseco makes these pistons in the USA from 2618 aluminum, a material chosen for its improved tensile strength, which is crucial when dealing with the higher cylinder pressures of a turbocharged engine. They feature precision ring grooves, anti-detonation grooves, and other features designed to improve ring seal and prevent detonation. The piston crowns are fully machined, and the pistons also come with forced pin oiling to ensure proper lubrication. To further reduce friction and improve durability, they're coated with an ArmorGlide skirt coating, which helps prevent seizure, reduces friction, and makes for quieter operation.

These pistons are built to handle heavy to severe duty performance applications, making them a great option for dedicated race builds or high-performance street engines. They fit a range of popular VW and Audi models, including the Audi A4, Audi TT, Volkswagen Beetle, and Volkswagen Golf. Remember, these are not CARB approved and cannot be shipped to California.