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

JE Pistons has been a leader in forged racing pistons for over 75 years, and they've applied that experience to a wide range of engines, including imports and sport compacts. This set of four pistons is specifically made for the Honda L15B7 Turbo engine, featuring a 73mm bore and a 10.3:1 compression ratio with a -9.6cc inverted dome. These pistons are forged and machined entirely in the USA using 2618 aluminum, a material chosen for its high tensile strength, which is crucial for high-demand performance applications.

You'll find JE's proprietary Forged Side Relief (FSR) design here, which helps minimize friction and power loss by using a reduced skirt width. This design also saves weight thanks to a shorter wrist pin. Depending on the specific application, these pistons may also include an accumulator groove to help reduce combustion gas pressure, preventing ring flutter and improving ring seal for more consistent power. A skirt coating, if included for this application, further reduces friction and wear on the piston skirts and cylinder walls, while also cutting down on operating noise. This kit comes complete with high-quality wrist pins, locks, and JE Pro Seal premium piston rings, ensuring you have the essential components for a solid rebuild.

Because these are performance-oriented pistons designed for specific engines and racing uses, they are not CARB approved and cannot be shipped to California. They are built to provide an optimized combination of performance and durability for your L15B Turbo build.