Why Upgrade LS Head Bolts?

OEM LS bolts:

• Stretch when torqued (one-time use)
• Lose clamping force under heat and load
• Struggle with boost and high compression

ARP Fixes That:

• High Performance Series alloy construction
• Higher clamp load capacity for better gasket sealing
• Hex head design for easy installation
• Reusable hardware (no torque-to-yield nonsense)

Translation: your heads stay sealed even when you start pushing real power.

Vehicle Fitment (GM LS Applications)

The ARP 134-3601 kit is designed for GM LS-based engines, including:

Compatible Engines:

• 4.8L / 5.3L / 5.7L / 6.0L / 6.2L
• LS1 / LS2 / LS3

Found In:

• Silverado / Sierra
• Camaro SS
• Corvette C5 / C6
• Tahoe / Yukon / Escalade

Ideal For:

• Engine rebuilds
• Head gasket replacement
• Cam and head upgrades
• Turbo / supercharged LS builds

If you’re adding boost and still trusting factory bolts… bold choice.

ARP SB Chevy Hex Head Bolt Kit

ARP 134-3601 LS head bolt kit – Key Features

• Hex head design (standard socket friendly)
• High-strength ARP alloy construction
• Black oxide finish for corrosion resistance
• Precision-machined threads for accurate torque
• Reusable hardware

Performance Benefits

• Prevents head lift under boost or high cylinder pressure
• Maintains consistent gasket sealing
• Supports high horsepower LS builds
• Improves long-term engine reliability

No more coolant disappearing or compression leaking where it shouldn’t.

ARP Cylinder Head Bolt Package Small Block Chevy P/N 134-3601
Section quantity: 1343601
Bundle Weight: 5.0 kilos
Have compatibility sort: Car Particular

Installation Notes

• Use ARP Ultra-Torque lubricant
• Follow ARP torque specs and sequence exactly
• Install during:
  • Engine rebuilds
  • Performance upgrades
  • Head gasket service

Why ARP 134-3601 LS head bolt kit?

Because when it comes to engine sealing:

• Cheap bolts = expensive problems
• Strong hardware = peace of mind

Final Verdict

The ARP 134-3601 High Performance Head Bolt Kit is a must-have upgrade for any LS engine pushing beyond stock limits.

Cheap insurance for one of the most critical parts of your build.