Upgrade your high-performance Honda K20A engine with the JE Pistons Ultra Series dome pistons, designed for maximum strength and durability. Crafted with JE's proprietary Aligned Grain Flow forging technology, these pistons deliver exceptional tensile strength to withstand the extreme pressures generated by forced induction and high-horsepower builds. The ceramic-based thermal barrier crown coating reflects heat into the combustion chamber, reducing piston crown temperatures and enhancing overall combustion efficiency, which is vital for high-boost applications. Each piston in this set features a high-strength Trend Performance wrist pin, precision skirt coating to reduce friction and noise during cold starts, and optimized pin oiling to ensure smooth operation under demanding conditions. Gas ports located at the top of the piston help maintain a consistent ring seal at high RPM and boost levels, ensuring sustained power output and efficiency throughout the engine's operation.

Features:

• Designed for Power: Every feature on Ultra Series Pistons are optimized to perform high-horsepower racing engines
• Aligned Grain Flow Technology: Exclusively available on JE Ultra Series, this proprietary, in-house forging process maximizes tensile strength to withstand the stresses of high-performance engine environments
• Skirt Coating: Reduces friction and wear on piston skirts and cylinder walls while simultaneously reducing operating noise, especially on cold start
• Thermal Barrier Crown Coating: This ceramic-based coating reflects heat into the combustion chamber, therefore reducing piston crown temperatures and improving exhaust gas scavenging
• High-Strength Wrist Pins: Premium thick-wall wrist pins are manufactured by Trend Performance in the USA and are designed for the demands of high-performance/power-adder builds
• Lateral Gas Ports: Help maintain power-producing ring seal at the top compression ring, even in high RPM and high boost situations
• Optimized Pin Oiling: Enhanced pin oiling features keep pin, pin bores, and small-end lubricated for reduced heat, friction, and wear
• Made 100% in the USA

Specifications:

• Product Type: Engine Piston Kit
• Piston Series: JE Ultra Series
• Cylinder Head: K20
• Bore Diameter: 87.50 MM
• Piston Head Type: Dome
• Compression Height: 1.176 IN
• Piston Volume: -1.00 CC
• Piston Material: 2618
• Forging Type: FSR
• Piston Average Weight: 360 GR
• Ring Set Included: Yes
• Top Compression Ring Thickness: 0.0395 IN
• Second Compression Ring Thickness: 0.0480 IN
• Oil Ring Thickness: 0.111 IN
• Wrist Pin Material: 9310 Nickel Carbon Steel Alloy
• Wrist Pin Length: 2.250 IN
• Wrist Pin Wall Thickness: 0.230 IN
• Product Market: Sport Compact