Wiseco VW 1.8L 8V Head 81.5mm Bore 9.5:1 CR Pistons (Inc Rings)

Starting with a 2618 aluminum forging, these Wiseco pistons are built for the demands of serious engine work in your 1984-1992 Volkswagen Jetta. The 81.50 mm bore size is a common choice for rebuilding the 1.8L 8V engine, and the 9.5:1 compression ratio is a solid target for improved performance without requiring exotic fuel. These pistons are fully machined, including the crown, and feature precision ring grooves designed for better sealing.

Wiseco also includes features like anti-detonation grooves and forced pin oiling to help these pistons stand up to heavy use. The ArmorGlide skirt coating is applied to reduce friction and noise, and it also helps prevent seizure. This set comes complete with premium rings, so you have a well-matched set ready for installation. These are intended for engine builds that see frequent or severe duty, offering a strong foundation for a performance-oriented engine.

When rebuilding your 1.8L 8V engine, especially for performance applications, these Wiseco pistons are a well-built option. Remember that 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.