Product Name: ARP 202-4301 Head Pins for Nissan Skyline RB20, RB20DET, RB25, RB25DET

Brand: ARP

Part Number: ARP-202-4301

Country of Manufacture: United States

ARP Pro Series head studs are the choice of top professional engine builders for competition powerplants. These studs are crafted from premium grade 8740 alloy and ARP2000 alloy, offering superior strength compared to standard "aircraft" quality alloys. Each stud undergoes precise heat treatment to 190,000 psi for 8740 material and 220,000 psi for ARP2000 material, ensuring complete heat penetration and superior performance.

Unlike lesser quality studs, ARP studs are manufactured with exacting tolerances, allowing gaskets and cylinder heads to align perfectly. This precision makes engine assembly easier, especially for racing powerplants that require frequent servicing. Studs provide more accurate and consistent torque loading, as they are installed in a relaxed mode and stretch only on the vertical axis, offering even clamping force on the head.

ARP is a leading manufacturer of fasteners and bolts for engines and drivelines, offering a range of high-performance OEM replacement parts and specialty hardware for racing applications.