ARP Head Studs, Bolts and Performance Fasteners

Shop ARP head studs, main studs, rod bolts, flywheel and flexplate bolts, pressure-plate hardware, wheel studs, engine fasteners, assembly tools, and Ultra-Torque lubricant by exact manufacturer part number. Match every engine, vehicle, thread, length, material, strength series, quantity, lubricant, and preload requirement before ordering.

Head Studs and Main Studs

Head and main stud kits are specific to the engine family, block, cylinder head, main-cap arrangement, material, and required clamping load. Confirm the exact engine generation and ARP series, then follow the current lubricant, tightening sequence, torque, or stretch instructions supplied for that kit.

Rod, Flywheel, Flexplate, and Pressure-Plate Hardware

Critical rotating-assembly fasteners must match thread diameter and pitch, under-head or overall length, shank, head style, material, quantity, and mating component. Similar-looking fasteners are not interchangeable, and factory torque values may not apply to ARP hardware.

Wheel Studs and Chassis Fasteners

Wheel studs require exact knurl diameter, thread pitch, length, shoulder, hub thickness, wheel and spacer stack, lug-nut engagement, and installation method. Verify front or rear application and package quantity before pressing or pulling studs into a hub.

Tools, Lubricant, and Installation Supplies

Use the socket, stretch gauge, thread chaser, lubricant, washer, nut, and installation procedure specified for the exact fastener. Friction changes preload, so lubricant and torque values must be treated as one matched procedure.

How to Choose the Correct ARP Part

• Match the exact ARP manufacturer part number
• Confirm engine family, model year, component, and application notes
• Verify thread pitch, length, material, series, head style, and quantity
• Use the specified ARP lubricant and tightening method
• Measure clearance and thread engagement before final assembly

Frequently Asked Questions

Can I use the factory torque specification with ARP hardware?
Not automatically. Use ARP's current instructions for the exact part, material, lubricant, tightening sequence, and preload method.

Are ARP 2000 and Custom Age 625 Plus fasteners interchangeable?
No. Material, strength, application, lubricant, and tightening requirements differ. Select the exact series and part number specified for the build.

How do I verify an ARP wheel stud will fit?
Match knurl diameter, thread pitch, usable length, shoulder, hub thickness, wheel and spacer stack, lug-nut engagement, axle position, and required quantity.

Should ARP studs and bolts be reused?
Reuse depends on the exact fastener, condition, installation method, measured stretch, and ARP guidance. Replace any damaged, corroded, necked, or out-of-spec hardware.

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