JE Pistons 366507 Forged Dome Piston Bore - 2618 3.740

The JE Pistons 366507 is a high-performance forged racing piston engineered for demanding powersports applications. This single-cylinder piston set features a dome top design with a 3.740-inch bore, 0.898-inch compression distance, and 0.748-inch wrist pin diameter. Built for extreme performance environments, this piston delivers the strength and reliability needed for professional competition.

Key Features:

• Forged from 2618 aluminum alloy for maximum strength
• More ductile material resists cracking and tolerates high cylinder temperatures
• Dome top design for increased compression ratio
• 3.740-inch (95.00mm) bore diameter
• 0.898-inch compression distance
• 0.748-inch wrist pin diameter
• Single piston set
• Precision engineered, forged, and machined in-house in the USA

With a history in racing dating back to 1947, JE Pistons is the industry leader in high-performance powersports forged racing pistons. The 2618 alloy construction provides superior tensile strength and ductility for extreme performance applications including high boost, nitrous oxide, and professional racing engines. While 2618 pistons require slightly larger piston-to-wall clearances than 4032 alloy alternatives, they offer unmatched durability under extreme loads and high cylinder temperatures.