ARP SB Chevy LS1/LS6 5.7L/6.8L Hex Head Bolt Kit

This ARP performance fastener, stud, bolt, tool, or assembly is the SB Chevy LS1/LS6 5.7L/6.8L Hex Head Bolt Kit for 2004-2007 Cadillac CTS. 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

• Forged 8740 Chromoly Steel: Handles up to 220000 PSI tensile strength for secure head gasket sealing in boosted or naturally aspirated setups.
• Application Specific Lengths: Matches OEM locations to prevent bottoming out and deliver even clamp load across cylinder head.
• Matched Washer Kit: Hardened steel washers prevent galling and promote even load distribution.
• Hex Head Design: Allows easy wrench access in tight engine bays while maintaining full thread engagement.
• Precision Rolled Threads: Ensures smooth consistent torque and minimizes distortion during high-heat cycles.
• Thread size M11 x 1.5 with lengths from 3.465 to 7.380 inches per ARP engineering.

Fitment

Specifications

What’s Included

One new ARP head 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
• ARP SB Chevy LS6 Hex Head Bolt Kit
• ARP GM LS1/LS6 5.7L/6.0L Balancer Bolt Kit
• ARP SB Chevy LS 03 and Earlier Head Stud Kit

Frequently Asked Questions

How do I confirm the SB Chevy LS1/LS6 5.7L/6.8L Hex Head Bolt Kit 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 134-3609, 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.