JE Pistons Ultra Series Honda K20C Forged Pistons, 86mm Bore, 10.0:1 CR, Set of 4 - 361278

Engineered for high-performance Honda K20C engines, this set of four JE Pistons Ultra Series forged pistons (MPN 361278) is designed to withstand the extreme cylinder pressures of high-boost racing applications. These pistons utilize proprietary Aligned Grain Flow technology to maximize tensile strength and durability, ensuring they handle the stresses of power-adder builds better than standard forgings.

Each piston features a ceramic-based thermal barrier crown coating to reflect heat back into the combustion chamber, improving exhaust gas scavenging and reducing piston temperatures. To minimize friction and cylinder wall wear, the skirts are treated with a specialized coating that also reduces operating noise during cold starts. Lateral gas ports are included to maintain a precise ring seal even under high RPM and peak boost conditions.

• Bore Size: 86mm
• Compression Ratio: 10.0:1
• Forging: Aligned Grain Flow technology for maximum tensile strength
• Thermal Barrier: Ceramic crown coating reflects heat and protects the piston
• Skirt Coating: Friction-reducing treatment for longevity and wear resistance
• Gas Ports: Lateral ports for optimized ring sealing
• Wrist Pins: Includes premium thick-wall Trend Performance wrist pins
• Origin: 100% Made in the USA