JE Pistons #398728 - Piston Kit - 4.080" Bore - 4.375" Stroke - 11.5:1 CR - 107" M8

Piston Kit - 4.080" Bore - 4.375" Stroke - 11.5:1 CR - 107" M8

Features

• 2618-T6 forged construction provides better aligned grain flow and higher tensile strength to provide durability, even in high-performance builds
• Skirt coating reduces operating friction and wear
• Offset pins reduce piston rock and minimize operating noise
• Skirt notches for optimal clearance at bottom dead center
• Accumulator groove taps combustion gases below the top ring to promote more consistent, positive ring seal and performance
• Inlcudes two pistons, premium ring packs, wrist pins and wire locks
• Made in the USA

Specs