GM 11130396707 Ls Cylinder Head Bolts 4.8L 5.3L 6.0L 6.2L

( Brand: Gm ), ( Manufacturer Part Number: 11130396707 ), ( Type: Cylinder Head ), ( Items Included: Bolts ), ( Vintage Part: No )

Review GM Oem Ls Cylinder Head Bolts 4.8l 5.3l 6.0l 6.2l Pair fits LS2 LS3 2004–2013

The **LS cylinder head bolts (part number 11130396707)** are precision-engineered fasteners specifically designed to secure the cylinder heads on General Motors legendary **LS-series engines**, spanning the **LS2, LS3, and LS6** variants produced from **2004 to 2013**. These bolts are meticulously crafted to meet the demanding requirements of GM s **4.8L, 5.3L, 6.0L, and 6.2L** high-performance V8 applications, ensuring optimal compression, sealing, and structural integrity under extreme operating conditions. Engineered from **high-strength, heat-treated alloy steel**, these bolts feature a **fine-threaded, 12-point drive pattern** for enhanced grip and torque distribution, reducing the risk of stripping during installation. Their **coarse thread design** (1/7 inch pitch) provides superior clamping force, critical for maintaining consistent cylinder head alignment and preventing warping especially in high-performance or forced-induction applications where cylinder head temperatures and pressures can reach extreme levels.

What sets these bolts apart is their **proprietary torque-to-yield specification**, a hallmark of GM s LS engine design philosophy. Unlike standard bolts, these fasteners are engineered to **yield slightly under high torque**, redistributing stress across the head gasket and cylinder head surfaces to prevent catastrophic failure. This controlled deformation ensures a **hermetic seal** while preventing over-tightening, which could lead to gasket damage or bolt stretch over time. The bolts are **coated with a high-temperature, anti-seize compound** to prevent galling and corrosion, particularly in applications where the engine operates under prolonged high-load conditions, such as drag racing, towing, or high-RPM performance driving. Their **uniform, tapered design** also promotes even load distribution, minimizing stress concentrations that could compromise the head s structural integrity.

For enthusiasts and mechanics working on **LS2 (2005 2013 Corvette, 2006 2013 Camaro SS, 2006 2013 Chevy HHR SS)**, **LS3 (2007 2013 Corvette, 2008 2013 Chevy Impala SS, 2009 2013 Cadillac CTS-V)**, or **LS6 (2006 2013 Corvette Z06)** engines, these bolts are an **essential upgrade** for rebuilds, modifications, or maintenance projects where reliability and performance are paramount. Their **OEM-grade quality** ensures compatibility with GM s factory specifications, while their **durability** makes them a preferred choice over aftermarket alternatives for those seeking long-term dependability. Whether installed in a **stock engine, a supercharged setup, or a turbocharged performance application**, these bolts deliver the **precision and strength** required to keep the LS engine running at peak efficiency, season after season. Proper installation following GM s **torque sequence and specifications** is critical to maximizing their performance and ensuring a leak-free, high-revving powerplant.

### **Pros and Cons of Buying (11130396707 LS Cylinder Head Bolts for GM 4.8L 6.2L Engines)**

1. **OEM Quality and Fitment** These bolts are genuine GM parts, ensuring proper fitment and compatibility with LS2, LS3, and related engines (4.8L 6.2L) from 2004 2013. They meet GM s original specifications, reducing the risk of misalignment or failure.

2. **High-Strength Material** The bolts are made from high-strength steel, designed to handle the torque and thermal cycling of LS engines. They are heat-treated for durability, which helps prevent loosening or stripping under normal operating conditions.

3. **Proper Torque Specifications** GM specifies a precise torque sequence and value (typically 60 70 ft-lbs in stages) for these bolts. Using OEM bolts ensures they can safely withstand the required clamping force without deforming or breaking.

4. **Long-Term Reliability** Since these bolts are used in production vehicles, they have a proven track record of reliability in high-performance and daily-drive applications. Many LS engines run for hundreds of thousands of miles with these bolts without issues.

5. **Ease of Replacement** They are standard fasteners, widely available, and relatively easy to install with the correct tools (torque wrench, breaker bar, and proper lubrication). No special hardware or expertise is required beyond basic mechanical knowledge.

6. **Prevents Head Gasket Failure** Properly torqued cylinder head bolts ensure even pressure distribution across the head gasket, reducing the risk of leaks or catastrophic failure. This is critical for LS engines, which are prone to head gasket issues if bolts are loose or improperly installed.

7. **Compatibility with Aftermarket Upgrades** Whether you re running stock specs or aftermarket components (turbocharging, forced induction, or high-performance camshafts), these bolts are a safe baseline. They can be used as-is or paired with aftermarket hardware (e.g., ARP or Mucoff bolts) for enhanced performance.

8. **Cost-Effective for Most Applications** While not the cheapest option, they are reasonably priced compared to high-end aftermarket alternatives. For most stock or mildly modified LS engines, they provide a cost-effective solution without sacrificing reliability.

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1. **Potential for Over-Tightening** GM s torque specifications are strict, and improper handling (e.g., over-torquing or skipping stages) can lead to bolt stretch or head warping. This requires careful attention during installation.

2. **Limited Performance Advantage** For stock or mildly modified engines, these bolts are adequate, but they are not optimized for extreme high-performance applications (e.g., 1,000 hp builds). In such cases, aftermarket bolts (e.g., ARP, Mucoff, or Torq-Sek) may offer better performance and longevity.

3. **No Anti-Seize or Lubrication** OEM bolts are not pre-lubricated with anti-seize compound. Without proper lubrication (e.g., Molykote or thread locker), they can seize or strip during removal, making future maintenance more difficult.

4. **Availability and Lead Times** While widely available, stock may be limited depending on the retailer or region. In some cases, ordering from a specialty parts supplier may result in longer wait times compared to aftermarket alternatives.

5. **Not Ideal for Aggressive Modifications** Engines with forced induction, aggressive camshafts, or high compression ratios may benefit from aftermarket bolts that offer higher clamp load or better fatigue resistance. OEM bolts may not provide the same level of reliability in these scenarios.

6. **Potential for Rust or Corrosion** If the bolts are stored improperly or exposed to moisture, they may develop rust, which can affect torque application. This is less common with new bolts but can be an issue with used or poorly stored parts.

7. **Cost Compared to Aftermarket Alternatives** While not excessively expensive, aftermarket bolts (e.g., ARP or Mucoff) often come with warranties, better lubrication, and performance benefits for a similar or slightly higher price. For enthusiasts willing to invest in longevity, these may be worth the extra cost.

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The **11130396707 LS cylinder head bolts** are an excellent choice for **stock, mildly modified, or daily-driven GM LS engines (4.8L 6.2L, 2004 2013)**. They offer a balance of reliability, ease of installation, and compatibility with GM s original specifications. For most drivers, these bolts will provide years of trouble-free service without requiring special care beyond proper torqueing and lubrication.

However, if you are running a **high-performance build (e.g., turbocharged, nitrous, or extreme horsepower)**, aftermarket bolts (such as ARP or Mucoff) may be preferable due to their superior strength, fatigue resistance, and performance characteristics. These alternatives are designed to handle higher stresses and offer warranties, making them a safer choice for aggressive modifications.

For **stock or lightly modified engines**, the OEM bolts are a **reliable and cost-effective solution**. For **serious performance builds**, investing in aftermarket bolts is often the better long-term choice.

- **For Stock or Mildly Modified Engines:** Purchase the **11130396707 GM OEM bolts** and follow GM s torque specification (60 70 ft-lbs in stages) with proper lubrication (e.g., Molykote 27 or thread locker). This ensures a durable and leak-free head gasket seal.

- **For High-Performance or Aggressive Modifications:** Consider **aftermarket bolts** (e.g., ARP, Mucoff, or Torq-Sek) that offer higher clamp load, better fatigue resistance, and warranties. These are worth the investment if you plan to push the engine beyond stock limits.

- **Always Use Anti-Seize Compound:** Even with OEM bolts, apply a high-quality anti-seize lubricant (e.g., Molykote 27) to prevent seizing during removal.

- **Follow Torque Specifications Precisely:** Over-torquing or under-torquing can lead to head warping or gasket failure. Use a quality torque wrench and follow GM s recommended sequence.

- **Inspect for Damage:** Before installation, check bolts for cracks, rust, or deformation. Replace any damaged bolts immediately.

In summary, the **11130396707 GM bolts are a solid choice for most LS engine applications**, but enthusiasts should weigh the trade-offs between OEM reliability and aftermarket performance based on their specific build goals.

Details:

LS Cylinder Head Bolts LS2, LS3 2004 13 GM 4.8L, 5.3L, 6.0L, 6.2L Pair: : Tested and verified before removal,: Carefully packaged for safe delivery. Motor sports Parts Graphics: M.P.G. Questions about fitment or condition. Trusted by thousands of fellow enthusiasts and builders.

Motor sports Parts Graphics, Built by enthusiasts, for enthusiasts.

part #: 11130396707 price

• $35.00

specifications cylinderheapar:

• for models: Ls2, Ls3
• for years: 2004-2013
• brand: Gm
• mpn: 11130396707
• type: Cylinder Head
• items included: Bolts
• vintage part: No

seller cylinderheapar:

• rating: 99.8%
• city: Grafton, Wisconsin
• # reviews: 2053

offer cylinderheapar:

• started: May 30, 2026
• options: Ship-to-home
• availability: In Stock
• quantity: 1
• sold: 0
• best offers: True

returns cylinderheapar:

• policy: No Returns

shipping cylinderheapar:

• transit: 5-11 Days
• service: USPS Ground Advantage
• class: Standard
• carrier: USPS
• cost: $0.00
• type: Fixed

payments cylinderheapar:

• other
• credit card: Discover
• wallet: Apple-pay

general cylinderheapar:

• Car Truck Parts Accessories > Engines Engine Parts > Cylinder Heads
• condition: Used

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