ARP Chromoly Header Stud Kits Throttle Body Spacers Machined from heat-treated 4140 chromoly

Machined from heat-treated 4140 chromoly steel

allowing tube-by-tube tuning across the stroke

Dual neodymium magnetic plugs in both drain and fill positions ensure maximum ferrous debris capture

air ratchets

SKU 512706 is backed by the manufacturer's quality guarantee and our satisfaction commitment

ARP Chromoly Header Stud Kits Throttle Body Spacers Machined from heat-treated 4140 chromolyThe ARP Chromoly Header Stud Kits provides a more reliable mounting solution for performance headers than standard bolts. The stud design simplifies header installation by allowing the gasket and header flange to be positioned on the studs before fastening, preventing gasket misalignment. Part 91522 is configured for its specific application with attention to fitment requirements. These header studs are machined from 8740 chromoly steel at 190,000 psi