JE PISTONS

Piston Kit Ultra Harley Davidson M8 17+ 10.25:1 4.250 Bore

Part # 0910-6856

• —Propriety aligned grain flow forging technology for maximum tensile strength suited for high performance enviroment
• —Cermic crown coating protects the piston by reducing heat transfer
• —Internal and external bracing maintains optimized strength-to-weight ratio for longevity
• —3D undercrown milling in non-critical areas reduces overall weight
• —Lateral gas ports and accumulator groove maintain power-producing ring seal even at high RPM and high boost
• —Tuff Skirt is a propriety, moly based dry film skirt coating that is applied in-house and reduces operating friction for better wear resistance
• —Offset pin reduces piston rock and minimize engine operating noise
• —Skirt notches for optimal clearance at the bottom dead center
• —Kit includes two pistons, premium ring pack, wrist pins and wire locks