BMW N63 4.8L Stroker Kit by 5150 AutoSport M52TU Head Stud We designed these bushings to

We designed these bushings to comply with the FD specs

this is something we can talk about via email

and craftsmen assembly

-Ensure WG lines are plumbed correctly

it stays plugged this way

BMW N63 4.8L Stroker Kit by 5150 AutoSport M52TU Head Stud We designed these bushings toBMW 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