Head Stud Kit - Nissan 2.5L RB25

The ARP Head Stud Kit for Nissan 2.5L RB25 engines is designed for high-boost and high-horsepower builds, providing superior clamping force compared to factory head bolts. This kit is essential for those looking to enhance engine reliability and performance, especially in turbocharged applications or when increasing compression ratios.

Manufactured from premium chrome-moly alloy, ARP studs feature precision threading that ensures consistent preload across all fastening points. Unlike standard bolts that can stretch and lose clamping force under extreme conditions, these studs maintain torque values and help prevent head gasket failures caused by bolt relaxation.

This kit is a direct fit for Nissan 2.5L RB25 platforms, including S13, S14, and engine swap applications in 240SX and Silvia chassis. It is particularly beneficial for any serious engine modifications, providing enhanced cylinder head integrity and gasket sealing for a variety of performance applications.