JE Pistons Ultra Series Honda K20C 86mm Bore 10.0:1 CR Set of 4 Pistons

JE Pistons is well-known for building strong, reliable engine components, and their Ultra Series pistons are a prime example of that commitment. If you're building a high-performance Honda K20C engine, especially one intended for forced induction or extreme use, these pistons are designed to handle the pressure. They feature JE's proprietary Aligned Grain Flow forging technology, which maximizes tensile strength to stand up to the intense cylinder pressures that come with power adder builds.

What sets these Ultra Series pistons apart are the custom-level features you get right out of the box. The thermal barrier crown coating helps reflect heat back into the combustion chamber, which can improve scavenging and reduce piston crown temperatures. You also get a durable skirt coating that works to reduce friction and wear on the piston skirts and cylinder walls, making for quieter operation, especially when the engine is cold. Lateral gas ports are included to help maintain a solid ring seal even at high RPM and under significant boost, ensuring consistent power delivery. These pistons are also equipped with high-strength, thick-wall wrist pins from Trend Performance, built for the demands of serious engine builds.

Every aspect of the JE Ultra Series pistons is optimized for high-horsepower racing engines. They are made 100% in the USA, ensuring a high level of manufacturing quality. This set includes four pistons, each with an 86mm bore and a 10.0:1 compression ratio, making them a solid choice for a wide range of K20C performance applications. Please note that these pistons are not CARB approved and cannot be shipped to California.