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Supertech valve springs are favored by performance enthusiasts
Recommendation: Manley rods provide excellent value and reliability for street builds running up to 750 HP
- Optional Upgrade to Carrillo Connecting Rods (Rated for 1
ARP Connecting Rod Bolts are a critical upgrade for anyone pushing the limits of their BMW B46 engine
Crafted in the USA by Automotive Racing Products (ARP)
Mini N18 Prince ARP Head Stud Kit 9104 Supertech valve springs are favoredUpgrade your MINI N18 Prince engine with an ARP Head Stud Kit. Unlike OEM bolts, these 8740 alloy studs are reusable, heat treated to 200,000 psi, and centerless ground for precise fitment. Engineered for ultimate cylinder head to block sealing, they prevent head gasket failure in high compression or forced induction setups. Each kit includes black oxide studs and hardened parallel washers for even torque distribution and superior durability.
