6mm stroke

Please note that this Head Stud Kit is not a retrofit from a Chrysler or Volvo stud kit

and durability under demanding conditions

this BMW S14 piston set features:

this BMW S52 piston set features:

Piston Skirt Coating Number of Pistons:12 6mm strokeSkirt Coating Friction Reducing Piston Enhancement This coating is applied to the piston skirt (the side of the piston that contacts the cylinder wall) to reduce friction during operation. By lowering metal to metal contact, the coating promotes smoother piston movement, improves ring seal stability, and minimizes wear on both the piston and cylinder bore. Key Benefits: Reduces friction between the piston and cylinder wall Minimizes wear during cold