ARP 1/2 x 6.5in Long Broached Individual Stud

This ARP performance fastener, stud, bolt, tool, or assembly is the 1/2 x 6.5in Long Broached Individual Stud. Confirm the exact engine or vehicle application, thread size, length, material, strength series, included quantity, installation lubricant, tightening sequence, and current ARP torque specification before ordering.

Key Features

• ARP2000 Alloy Construction: Forged from proprietary steel with 200,000 psi operating strength and 220,000 psi tensile rating for repeated heavy loads.
• 6.5in Overall Length: Correct dimension for standard clearance on press-fit and bushed connecting rods in stroker and stock configurations.
• Made from ARP2000 modified 8740 chrome moly steel heat-treated to 200,000 psi minimum for extreme boost and nitrous applications.
• Rolled Threads: Increases fatigue life by 10 times over cut threads while maintaining precise thread engagement.
• Broached Hex Head: Allows accurate wrenching without damaging stud or rounding corners during installation and removal.
• 1/2″-20 UNF Thread: Matches OEM and aftermarket rod big ends on domestic V8s for plug-and-play fitment.

Fitment

Specifications

What’s Included

One new ARP hardware – single in the exact configuration and quantity identified by this listing. Brackets, wiring, air lines, fittings, switches, fasteners, fitting kits, fluids, covers, and accessories are included only when expressly stated for this exact part.

About ARP

Automotive Racing Products manufactures high-performance studs, bolts, nuts, washers, wheel hardware, assembly tools, and installation lubricants for engine, drivetrain, chassis, and racing applications. Thread dimensions, material, preload method, lubricant, torque, and included quantity remain exact-part specific.

Related Parts

• Shop all ARP products
• ARP 1/2in -20 12pt Nut (Single Nut)
• ARP 1/2in x 5.250in Long Broached Allen Head Stud (Single Stud)
• ARP 1/2in x 5.5.310 ARP2000 Stud

Frequently Asked Questions

How do I confirm the 1/2 x 6.5in Long Broached Individual Stud fits my application?
Match the exact engine family or vehicle, component location, thread diameter and pitch, under-head length, material, strength series, and every current ARP application note.

Can I reuse the factory torque value with this ARP hardware?
Not automatically. Use ARP’s current instructions for the exact part, material, lubricant, tightening sequence, and preload method. Factory torque values may be based on different hardware and friction.

What is included with this ARP kit?
Only the studs, bolts, nuts, washers, lubricant, and tools expressly listed for this exact part number are included. Verify the required quantity before disassembly.

Installation Instructions

1. Confirm ARP part number AR6.500-1LB, the complete application, and every required supporting component before beginning work.
2. Clean and inspect all mating threads and components, then verify thread engagement, length, washers, nuts, lubricant, and required preparation before assembly.
3. Follow ARP’s current tightening sequence, lubricant instructions, torque or stretch method, and any retorque procedure for this exact part.
4. Verify clearance, preload, fastener seating, and normal component operation before returning the vehicle or engine to service.