JE Pistons Honda L15B Turbo 73mm Bore 10.3:1 CR -9.6cc Dome Piston Set (Set of 4) - 357429

Engineered specifically for the Honda L15B Turbo engine, this JE Pistons forged piston set (MPN 357429) is designed to handle the increased cylinder pressures and thermal loads of performance builds. Forged and machined in the USA from 2618-T6 aluminum alloy, these pistons provide the high tensile strength required for forced induction racing and high-output street applications.

This set utilizes the proprietary Forged Side Relief (FSR) design, which minimizes friction and reduces reciprocating mass through a specialized skirt profile and a shorter wrist pin. To ensure a superior ring seal, an integrated accumulator groove manages combustion gas pressure between the ring lands, reducing ring flutter at high RPM. The piston skirts are treated with a specialized coating to reduce wear on both the pistons and cylinder walls while dampening operating noise.

• Engine Application: Honda L15B Turbo
• Bore Diameter: 73mm
• Compression Ratio: 10.3:1
• Dome Volume: -9.6cc
• Material: 2618 Forged Aluminum
• Design: FSR (Forged Side Relief) with Accumulator Groove
• Manufacturer Part Number: 357429
• Included: JE Pro Seal premium piston rings, high-quality wrist pins, and wire locks