This kit features a 3

Constructed from billet aluminum and treated for exposure to the elements

- Precision laser-etched 360° timing marks for precise adjustments

BMW 645Ci V8 (4

That allows precious coolant to flow into the radiator and start shedding heat sooner

BMW S68 Cylinder Sleeves 5464 This kit features a 35150 Xtreme Duty Cylinder Sleeves, also known as cylinder liners, are centrifugally cast, ductile iron cylinder sleeves. Benefits of Engine Sleeving Include: Increased Bore Size: Sleeving your engine gives the opportunity to increase bore size for higher displacement and increased engine capacity, resulting in more power and more torque Increased Strength: Iron sleeves are stronger than alusil when subjected to high power, high stress applications,