ARP Main Bolt Kit for Chevrolet Large journal – hex nut

This ARP performance fastener, stud, bolt, tool, or assembly is the Main Bolt Kit for Chevrolet Large journal – hex nut. 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

• 8740 Chrome Moly Steel: Forged construction provides high tensile strength rated up to 190,000 PSI for Pro Series reliability in demanding environments.
• Large Underhead Radius: Distributes clamping load evenly reducing stress concentrations on main caps.
• Forged from 8740 chrome moly steel with black oxide finish Pro Series rated at 190,000 PSI tensile strength.
• Rolled Threads After Heat Treat: Increases fatigue strength by 2000% over bolts threaded before heat treating for superior resistance to failure.
• Reduced Wrenching Head: Allows easy access in tight engine bays while maintaining secure torque application.
• Compatible with stock and aftermarket main caps uses 1/2-20 x 5.100 inch bolts.

Fitment

Specifications

What’s Included

One new ARP main stud & bolt kit 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.

Important Disclosures

• California Proposition 65 warning applies. Review the current manufacturer warning before handling or installation.

Related Parts

• Shop all ARP products
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• ARP 06+ Chevy Duramax Diesel LBZ/LMM Main Stud Kit

Frequently Asked Questions

How do I confirm the Main Bolt Kit for Chevrolet Large journal – hex nut 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 134-5202, 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.