JE Pistons 323895S FSR Forged Piston Kit 78mm Bore 13.5:1 Compression

The JE Pistons 323895S is a high-performance FSR (Forged Side Relief) piston kit designed for demanding motorcycle and powersports applications. This kit features a standard bore size of 78.00mm and delivers a 13.5:1 compression ratio for maximum power output.

Key Features:

• Forged in the USA from 2618 aluminum alloy for exceptional tensile strength and durability in high-performance applications
• Proprietary FSR (Forged Side Relief) forging design reduces friction and power loss through optimized skirt width
• Lightweight construction with shorter wrist pin reduces reciprocating mass for improved throttle response
• 78.00mm standard bore diameter precision-machined for optimal ring seal and cylinder wall contact
• 13.5:1 compression ratio engineered for race and high-performance street applications
• Fully CNC-machined for exacting tolerances and consistent quality

JE Pistons has over 75 years of experience manufacturing forged racing pistons for automotive and powersports engines. Each piston is engineered, forged, and machined entirely in the USA to provide the ultimate combination of durability and performance for your high-demand engine build.