B58 CNC Cylinder Head Stud Conversion 11217616597 these guides are a critical

these guides are a critical upgrade for anyone pushing the S63 platform beyond factory performance

The PDM08 is equipped with eight high-sided outputs designed for robust performance

and new valve locks/keepers

ensuring protection and safety

B58 CNC Cylinder Head Stud Conversion 11217616597 these guides are a criticalCNC Cylinder Head Stud Conversion If youre building a B58 engine thats going to see 1200HP+, the way your head studs are set up is critical. We CNC machine cylinder heads to properly convert them for larger head studs, making sure everything is aligned, consistent, and accurately positioned. This isnt a quick drill job or a close enough fitment. Its done on a CNC machine so the geometry is exactly where it needs to be every time. Some shops will