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

H-Series, Performance, Aluminum Cylinder Block, Romeo Engine Contains 1 Piece Thrust Washer Set with Lower Half Flanged Thrust Bearing, Position #(s) 5, Grooved Upper Half And Plain Lower HalfLearn More

H-Series, Performance, Aluminum Cylinder Block, Romeo Engine Contains 1 Piece Thrust Washer Set with Lower Half Flanged Thrust Bearing, Position #(s) 5, Grooved Upper Half And Plain Lower HalfLearn More

ARP 4.6L 2 & 4 Valve Cylinder Head Studs- (Hex Nuts)

Stock bolts and gaskets are OK for stock cars. But with high performance engines you want something better. Why take a chance on your new cylinder heads with cheap, mass produced bolts. Go with the best. Go with ARP.

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ARP 4.6L DOHC Main Studs( 4 Bolt Main) *With windage tray

**FOR USE WITH TEKSID ALUMINUM BLOCK**

There are many important reasons to use ARP® main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. The studs are manufactured in our own factory using the best materials, processes, designs and engineering.

Every ARP® main stud kit exceeds the most stringent aerospace specifications. All kits come complete with hardened parallel-ground washers and aerospace quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place.

The studs are manufactured from 8740 chrome moly steel, heat-treated in-house to 190,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 1000% stronger than others. Dont settle for anything less than the best. Insist on genuine ARP® studs¦youll find the name stamped right on the end!

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