Why This Kit Matters (More Than You Think)

Stock LS cam bolts are torque-to-yield and:

• Not designed for repeated installs
• Not ideal for high-performance builds
• Known to stretch under stress

ARP replaces them with reusable, high-strength fasteners that actually hold up under pressure.

Interested in the Definitive LS1 swap 240sx Guide?

What This Kit Solves:

• Prevents cam bolt stretch and failure
• Secures camshaft timing integrity
• Keeps retainer plate locked in place under load
• Supports high lift cams and upgraded valve springs

Translation: your cam stays where it’s supposed to—no surprises.

The ARP LS Cam and Retainer Plate Bolt Kit provides the whole thing you want to safe your camshaft and retainer plate with race-proven strength. Featuring ARP 134-1003 cam bolts and ARP 134-1002 retainer plate bolts, this whole kit ensures correct camshaft installation and long-term reliability in any LS build.

Need to troubleshoot your LS1 swap? Don’t forget to check out our DIY guide – My Pro Street

Vehicle Fitment (GM LS Engines)

Designed for Gen III & Gen IV LS-based engines, including:

GM LS Platforms:

• 4.8L (LR4, LY2)
• 5.3L (LM7, L59, LC9, LH6)
• 5.7L (LS1)
• 6.0L (LQ4, LQ9, LS2)
• 6.2L (LS3, L92, L99)

Found In:

• Chevy Silverado / GMC Sierra
• Camaro SS (LS1, LS3)
• Corvette C5 / C6
• Tahoe / Yukon / Escalade

Also Perfect For:

• LS swaps (240SX, RX-7, E36, literally everything these days)
• Cam upgrades and performance rebuilds

Manufactured from premium 8740 chromoly steel and heat-treated for superior tensile strength, ARP fasteners outperform stock bolts by delivering the clamping power needed for high-RPM, high-performance applications. Ideal for cam swaps, rebuilds, or performance upgrades, this kit is trusted by professional engine builders world wide.

What’s Included

• ARP 134-1003 Camshaft Bolts (high-strength, reusable)
• ARP 134-1002 Retainer Plate Bolts
• Complete hardware for proper LS cam installation

Complete Cam & Retainer Hardware Kit – Includes three ARP 134-1003 camshaft bolts and four ARP 134-1002 retainer plate bolts for a full LS cam installation.
Premium ARP Construction – Constructed from 8740 chromoly steel, heat-treated, and precision-machined for unmatched durability and strength.

Key Features

• High-strength alloy construction (far superior to OEM)
• Reusable hardware – no torque-to-yield nonsense
• Precision-machined threads for consistent torque
• Designed for high RPM & performance applications
• Corrosion-resistant finish for long-term durability

Performance Benefits

• Maintains accurate cam timing under load
• Handles aggressive camshafts and spring pressure
• Reduces risk of valvetrain failure
• Provides long-term reliability for street and track builds

Basically, it keeps your cam from doing freestyle chaos inside your engine.

Superior to OEM Fasteners – Provides higher clamping force and fatigue resistance than factory bolts, making sure reliable performance under extreme conditions.

Installation Notes

• Follow ARP torque specifications exactly
• Use thread locker where specified
• Ideal install during:
  • Camshaft upgrades
  • Engine rebuilds
  • LS swap builds

Why ARP?

Because when it comes to internal engine hardware:

• Cheap = catastrophic
• ARP = peace of mind

They’re trusted in builds making 1,000+ HP… your weekend warrior is light work.

Absolute best for Cam Swaps & Rebuilds – Designed for engine refreshes, performance camshaft upgrades, or each time factory bolts need replacing.
Wide LS Engine Compatibility – Fits GM LS engines including 4.8L, 5.3L, 5.7L, 6.0L and popular performance platforms such as LS1, LS2, and LS3.

Final Verdict

The ARP LS Cam & Retainer Plate Bolt Kit is a must-have for any LS build that goes beyond stock.

It’s one of those upgrades that:

• Costs very little
• Prevents very expensive problems

Which is basically the best kind of upgrade.