JE PISTONS Piston Kit - 4.250" Bore - 4.375" Stroke - 11.5:1 CR - 107" M8 398730

Piston Kit - 4.250" Bore - 4.375" Stroke - 11.5:1 CR - 107" M8 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