ARP Head Stud Kit High Performance 8740 Series Nissan RB20/25 202-4301

Discover the ultimate upgrade for your Nissan RB20/25 engine with the ARP Head Stud Kit High Performance 8740 Series, part number 202-4301, available at Terra Firma Automotive. Trusted by top engine builders worldwide, ARP Pro Series head studs are the go-to choice for all-out competition powerplants. With a reduced wrenching hex or 12-point head and wide area flanged head, our High Performance head bolts make cylinder head retorquing a breeze without the need for valve train removal. Each bolt boasts an impressive strength rating of 180,000 psi, a remarkable 15% stronger than Grade 8 bolts, ensuring superior performance and durability. At Terra Firma Automotive, we only use the finest quality materials for our head studs. Forged in-house at ARP, heat-treated using special vertical racks for complete 360° penetration, and threads rolled after heat-treat, these bolts provide up to 10-times longer fatigue strength compared to others. With precision CNC-machining and hardened parallel-gro