ARP 204-4204 ARP Pro Series Cylinder Head Studs ARP Main Stud Kits letting your turbo or supercharger

letting your turbo or supercharger work more efficiently

COMP Cams components are engineered for reliable high-RPM operation

Hydraulic lifters feature properly calibrated internal valving for consistent lash adjustment throughout the temperature range

Stock boots soften with heat and split under boost

ARP 204-4204 ARP Pro Series Cylinder Head Studs ARP Main Stud Kits letting your turbo or superchargerThe ARP 204 4204 ARP Pro Series Cylinder Head Studs provides superior cylinder head clamping compared to factory TTY (torque to yield) fasteners. These head studs are manufactured from 8740 chromoly steel, heat treated to 190,000 200,000 psi tensile strength, with precision rolled threads for consistent clamp load across every installation. Part 50818 is configured for its specific application with attention to fitment requirements. ARP Pro Series