ARP 245-6402 Rod Bolt Kit 672036010782

( Brand: Arp ), ( Manufacturer Part Number: 245-6402 ), ( Part Type: Rod Bolt ), ( UPC: 672036010782 )

Review ARP Rod Bolt Kit

The **ARP 245-6402 Rod Bolt Kit** is a high-performance, precision-engineered solution designed to elevate the strength, reliability, and durability of your vehicle s suspension system, particularly for applications requiring robust rod-end attachment. This kit is meticulously crafted to meet the demanding requirements of off-road enthusiasts, performance tuners, and professional mechanics who demand nothing less than superior quality and performance. At its core, the 245-6402 features a **high-strength, heat-treated steel rod bolt assembly**, engineered to withstand extreme loads, lateral forces, and repetitive stress cycles without compromising integrity. The rod bolts are precision-machined to exacting tolerances, ensuring a snug, interference-fit connection that minimizes play and maximizes load transfer, which is critical for maintaining structural stability in high-stress applications such as sway bar links, control arm attachments, or custom suspension builds. Each bolt is equipped with a **smooth, polished finish** that resists corrosion and galling, making it ideal for both dry and wet environments, including heavy-duty off-roading where exposure to mud, water, and abrasive elements is common. The kit includes **two heavy-duty rod bolts**, each featuring a **threaded shank** designed to be press-fit or interference-fit into pre-drilled or pre-tapped rod ends, ensuring a secure and permanent connection that eliminates the need for traditional bolts or nuts prone to loosening under vibration. The threaded portion is precision-cut to a **fine pitch**, allowing for a tight, lock-tight grip that resists back-out, even under the most demanding conditions. Complementing the rod bolts are **high-quality, hardened washers** included in the kit, which provide an additional layer of protection against wear and prevent the bolt heads from damaging delicate rod-end surfaces. These washers are crafted from **chrome-molybdenum steel**, offering superior hardness and resistance to deformation, ensuring long-term durability and consistent performance. The ARP 245-6402 is not merely a replacement part but a **performance upgrade** that enhances the overall rigidity and load-bearing capacity of your suspension components. Whether you're reinforcing a stock setup, upgrading a custom build, or addressing wear in an existing system, this kit delivers the strength and precision required to handle the most aggressive driving conditions. ARP s reputation for innovation and reliability is embodied in this kit, making it a trusted choice for those who refuse to compromise on quality. With its **easy installation** requiring only a press fit or basic hand tools and **long-lasting performance**, the 245-6402 rod bolt kit is an indispensable addition to any suspension reinforcement project, ensuring peace of mind with every mile driven.

The **ARP 245-6402 Rod Bolt Kit** is a popular upgrade for high-performance engines, particularly in muscle cars, trucks, and performance applications. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the ARP 245-6402 Rod Bolt Kit**

1. **Superior Strength and Durability**

The ARP kit uses **7050-T7451 aluminum alloy**, which is significantly stronger than stock bolts. These bolts are designed to handle extreme forces, making them ideal for high-RPM applications, forced induction, or heavy-duty street/strip use. The **high-strength material** reduces the risk of bolt stretch or failure under heavy loads.

2. **Precision Machining and Fit**

ARP bolts are **precisely machined** to exact specifications, ensuring a consistent and interference fit in the rod journals. This minimizes play and improves reliability compared to aftermarket or OEM bolts that may not match the rod s geometry as closely.

3. **Heat Resistance**

The 7050 alloy has excellent **heat resistance**, making it suitable for high-temperature environments common in forced induction (turbo/supercharged) engines or high-compression applications. This reduces the risk of thermal degradation over time.

4. **Corrosion Resistance**

ARP bolts are **anodized** (typically black or clear anodize) to protect against corrosion, which is critical for engines exposed to moisture, salt, or harsh environments. This extends the lifespan of the bolts compared to unprotected steel or zinc-plated alternatives.

5. **Compatibility with High-Performance Engines**

- **Muscle cars** (e.g., Ford 351W, Chevy LS, GM LSX, Dodge Hemi)

- **Truck engines** (e.g., GM LS, Ford 6.2L, Cummins)

- **Forced induction builds** (turbocharged or supercharged engines)

- **Drag racing and street racing** applications

The kit is often used in **big-block and small-block engines** where stock bolts are insufficient.

6. **Easy Installation**

ARP provides **detailed installation instructions**, and the bolts are designed to be **threaded directly into the rod journals** without requiring extensive modification. While some engines may need slight rod journal prep (e.g., deburring), the process is generally straightforward compared to other high-end kits (e.g., ARP s full rod sets).

7. **Warranty and Reputation**

ARP is a **well-respected brand** in the performance aftermarket, known for high-quality products and reliable customer support. Their bolts come with a **warranty**, though terms may vary, and they are widely trusted by mechanics and racers.

8. **Cost-Effective for High-Stress Applications**

While not the cheapest bolt kit on the market, the **ARP 245-6402 is more affordable than full rod sets** (e.g., ARP s complete rod replacement kits). It offers a **balance of cost and performance**, making it a practical choice for those who want upgraded bolts without a full rod swap.

9. **Reduces Risk of Catastrophic Failure**

In high-RPM or high-torque applications, **stock bolts can stretch or fail**, leading to rod damage or engine destruction. ARP bolts **eliminate this risk** by providing a much higher safety margin.

10. **Used in Professional Racing**

Many **NASCAR, NHRA, and drag racing teams** use ARP components, including rod bolts, due to their reliability under extreme conditions. This lends credibility to their performance claims.

---

### **Cons of the ARP 245-6402 Rod Bolt Kit**

1. **Not a Full Rod Replacement**

The **245-6402 kit replaces only the bolts**, not the rods themselves. If your rods are **worn, cracked, or improperly balanced**, upgrading just the bolts will not address these issues. A **full rod set (e.g., ARP 245-6400 or 245-6401)** may be needed for severe cases.

2. **Requires Proper Installation**

- Ensuring **rod journals are clean and free of debris**.

- Using the **correct torque specification** (ARP provides charts, but exceeding specs can damage threads).

- Avoiding **over-tightening**, which can strip threads or distort the rod.

If not installed correctly, the benefits may be negated.

3. **Limited to Specific Engine Applications**

The **245-6402 kit is designed for certain rod journal sizes** (typically **1.75" or 1.90" diameter**). If your engine has **unusual rod journal dimensions**, you may need a custom or different ARP kit. Always **check compatibility** before purchasing.

4. **Not Suitable for Stock or Mild Performance Engines**

If your engine runs **stock or lightly modified (e.g., mild turbo, no forced induction)**, the **cost-benefit ratio may not justify** upgrading to ARP bolts. Stock bolts are often sufficient for **daily drivers or low-stress applications**.

5. **Potential for Overkill in Some Cases**

For **low-RPM, low-torque applications** (e.g., a stock 5.0L Mustang with no modifications), ARP bolts are **more than adequate but may be considered "overkill"** by some. In such cases, **aftermarket steel or zinc-plated bolts** (e.g., from ARP s lower-tier kits or other brands) might suffice at a lower cost.

6. **Cost Compared to Alternatives**

- **ARP s lower-tier bolt kits** (e.g., 245-6400 for steel bolts).

- **Other brands** like **Eagle, JE, or Holley**, which offer high-quality bolts at a fraction of the cost.

- **Stock bolts with thread-locking compounds** (for very low-stress applications).

However, these alternatives **lack the heat resistance and precision** of ARP s 7050 alloy.

7. **Installation May Require Special Tools**

While not always necessary, some engines may require **rod journal reaming or deburring** before installing ARP bolts. This adds **minor extra labor cost** if not already done.

8. **Potential for Thread Stripping if Misused**

If **over-torqued or installed incorrectly**, ARP bolts can **strip threads** in the rod journals. This is rare with proper installation but is a risk if the engine sees **extreme abuse** (e.g., repeated high-RPM stalls, improper maintenance).

9. **Limited Availability of Replacement Bolts**

While ARP bolts are durable, **if a bolt fails**, replacements may not always be in stock immediately. This is less of an issue for the **245-6402 kit** (which is widely used), but could be a concern for **custom or discontinued kits**.

10. **Not a "Set and Forget" Solution**

- **Regular inspection** for signs of wear or corrosion.

- **Re-torquing** if the engine sees extreme conditions.

- **Avoiding extreme temperature swings** (e.g., leaving the engine running in cold weather without oil circulation).

---

### **Conclusion**

The **ARP 245-6402 Rod Bolt Kit** is one of the best **high-performance bolt upgrades** available for engines subjected to **high stress, forced induction, or extreme power levels**. Its **superior strength, heat resistance, and precision engineering** make it a **reliable choice for serious racers, street racers, and high-performance enthusiasts**.

However, it is **not a universal fix** it is **best suited for engines that already have strong rods** and are running **significant power (300 HP, forced induction, or high-RPM applications)**. For **stock or mildly modified engines**, the cost may not be justified, and **alternative bolt kits** could be more practical.

If you are **building a high-performance engine, running a turbo/supercharger, or pushing your engine to its limits**, the **ARP 245-6402 is an excellent investment** in reliability and longevity. For **everyday driving or low-stress applications**, consider whether the **benefit outweighs the cost** before purchasing.

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### **Final Recommendation**

You are running a **high-performance engine** (forced induction, high compression, or extreme power levels).

Your **rods are in good condition** (no cracks, proper balance, and no excessive wear).

You need **maximum strength and heat resistance** for reliability.

You are **not on a tight budget** and want a **premium, race-proven** solution.

Your engine is **stock or lightly modified** (stock bolts may suffice).

Details:

ARP Rod Bolt Kit Big Block Chrysler, Kit Big Chrysler383-440 Wedge 354-392 Heatwave Locust of 16, Stretch Torque Specs Stretch inches .0070-.0075Torque ARP Lube 50 ft./lbs. American Express.

part #: 2456402 prices

• $141.99-$287.39

specifications pistonrinro:

• brand: Arp
• mpn: 245-6402
• part type: Rod Bolt
• upc: 672036010782

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• paid by: Seller
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• time: 30 Days

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• city: , Ohio
• # reviews: 619549
• rating: 99.2%

general pistonrinro:

• condition: New
• Car Truck Parts Accessories > Engines Engine Parts > Connecting Rods Parts

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• cost: $15.99

offer pistonrinro:

• quantity: 0
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• availability: In Stock
• options: Ship-to-home
• started: March 9, 2026

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