Description
Our stud kits are cut and rolled from billet steel containing our proprietary triple temper, 2 stage heat treat, and alloy combination. This material gives an ultimate strength of 280,000 PSI and reusable yield strength of 260,000 PSI. We don’t stop with a strong part; every piece of our hardware is wrapped in corrosion and scratch-resistant armor creating a surface that resists corrosion for 60 hours in a salt spray and can be dropped and abused without worrying about a corrosion failure down the road.
Each piece of hardware in these kits is cut from billet. Not stamped, not forged, not cast, but made from the densest and strongest form of steel, right from the foundry
Each piece of hardware: nut, washer, and the stud is made from the same super-strong material, and heat-treated to the same level to ensure no part of the fastener stack fails
Every washer and nut are perfectly matched to ensure the best distribution of load.
Each batch of heat treatment is tensile tested to ensure the fasteners in those loads reached the correct amount of strength, and that data is recorded onto your sets individually assigned quality paperwork.
Every thread is gauged, nut and stud, to ensure smooth torque loading and strong thread engagementLearn More
Pro series cylinder head studs from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining and are rated at a whopping 220,000 psi. ARP Pro series kits are also available with 12-point nuts, and all kits come complete with hardened parallel washers for an even load distribution and accurate torque readings.Learn More
ARP - The world leader in fastener technology has just released new Pro Series main cap side bolt kits for FRPP Cast Iron Block. All Pro Series side bolt kits feature 8740 chrome moly steel 12 point bolts that are heat treated prior to thread rolling and machining, and are nominally rated at 200,000 psi. Special purpose washers are included where necessary. Optimum design, enhanced reliability and increased strength are the main attributes of ARP's Pro Series main cap side bolt kits.Learn More
ARP 2000 Harmonic Balancer Bolt for all Mustang 4.6 and F150 / 5.4 Lightning
The Factory harmonic balancer bolt is a torque to yield design and should only be used once. This ARP bolt re-usable over and over and will hold your harmonic balancer in place-PERIOD. Also fits 5.0 stroker cranks. Fits all 4.6 / 5.4 Crankshafts (DOES NOT FIT GT500 / Cobra Jet crankshafts see mmr # 422435)Learn More