ARP Ford Cosworth Sierra and Escort Head Stud Kit

This high-performance head stud kit from ARP provides a direct-fit fastener solution for Ford Cosworth cylinder heads used on Sierra and Escort applications, designed to secure the head-to-block joint under elevated cylinder pressures. Intended for builders and enthusiasts working on Cosworth-equipped engines, the kit replaces standard head bolts with stronger, more reliable studs to improve clamping consistency and support high-boost or high-RPM operation without altering the head or block. Use this ARP head stud kit when assembling or upgrading Ford Cosworth heads to achieve durable, repeatable head clamping for track, rally, or performance street builds.