from subtle improvements for street builds to aggressive profiles designed for high-performance racing

CAT Cams camshafts will enhance your S38 engine's performance

which can cause additional stress on the head gasket and bolts

Breakage can result in valves dropping into the combustion chamber

BMW N63 4.8L Stroker Kit by 5150 AutoSport Piston Bore:89 mm from subtle improvements for streetBMW N63 Stroker Kit by 5150 AutoSport Bigger displacement, more torque and more power; Our 5150 AutoSport Stroker Kits are specifically designed for the BMW N63 Engine. Benefits of Stroking an Engine: Higher displacement offers greater power output and torque from increased cylinder volume and improved air fuel mixture combustion Longer crankshaft stroke increases connecting rod leverage for increased torque output at lower RPMs Improved throttle