Looking for a top-quality head stud kit that can withstand some serious horsepower? Look no further than the ARP 230-4201 head studs! These bad boys are made from ARP 2000 material for unbeatable strength and durability, and they're rated at a whopping 220,000 PSI tensile strength. Plus, they come with 12-point chrome-moly steel nuts and parallel-ground washers for an even load distribution and accurate torque readings. So whether you're building a street machine or a race car, trust the pros at ARP to keep your engine together - order your ARP 230-4201 head stud kit today!