ARP studs are ARP2000, heat-treated to 220,000 PSI tensile strength, and precision J-from thread-rolled after heat-treat resulting in a fastener that has threads 2000% stronger than others.
Kit includes 10 studs, 10 parallel ground washers, 10 twelve-point nuts, moly torque lube, and an instruction sheet.
ARP recommends studs are over bolts because of the ability to obtain a more accurate torque reading studs provide over bolts.
Studs don't twist as they are fastened down. Additionally, because of this there is less force exerted on the thread of the block, which results in increased block life, especially on aluminum blocks.
Main stud kit - to bolt the main caps of the crankshaft!
Applications: Toyota 2ZZGE