JE Pistons Volkswagen 1.8T 20V 81.50mm Bore 1.281in CH -3.40cc Ultra Series Pistons - Set of 4

JE Pistons is well-known for making strong engine components, and their Ultra Series pistons are a prime example of that expertise. If you're building a high-performance Volkswagen 1.8T 20V engine, especially one intended for significant boost, these pistons are designed to handle the extreme cylinder pressures you'll encounter. They are crafted with JE's proprietary Aligned Grain Flow forging technology, which maximizes the material's tensile strength to withstand the rigors of boosted applications.

These Ultra Series pistons come loaded with custom-level features that set them apart. The thermal barrier crown coating helps reflect heat, keeping piston crown temperatures down and improving the efficiency of exhaust gas scavenging. For reduced friction and wear on both the piston skirts and cylinder walls, a skirt coating is applied, which also helps quiet down the engine, particularly during cold starts. To ensure proper lubrication in demanding conditions, these pistons feature optimized pin oiling. Lateral gas ports are included to help maintain a solid ring seal even at high RPMs and under high boost, which is crucial for consistent power production. The set includes high-strength, thick-wall wrist pins from Trend Performance, built to handle the stresses of power-adder engines.

This set is for a 4-cylinder engine with an 81.50mm bore and a 1.281-inch compression height, featuring an inverted dome/dish with a -3.40cc volume, aiming for a 9.50:1 compression ratio. Every aspect of these pistons is optimized for high-horsepower racing engines, and they are proudly made 100% in the USA.