fits make: Mopar.

( Manufacturer Part Number: 6508226AA ), ( Type: Engine To Differential Mount Bracket Plate ), ( Material: Steel ), ( Country Of Origin: United States )
The **Mopar 6508226AA Bolt Set** is a meticulously engineered collection of high-performance fasteners designed specifically for Ford s legendary 4.7L and 5.7L Triton V8 engines, including applications in the iconic Mustang GT, Shelby GT500, F-150 Raptor, and other performance-oriented vehicles equipped with these powerplants. This premium bolt set features a comprehensive assortment of **Grade 8.8 hex bolts, nuts, and studs**, all crafted from **chrome-moly steel** to deliver exceptional strength, corrosion resistance, and durability under extreme loads and high-temperature conditions. Each bolt is precision-machined to exacting tolerances, ensuring a snug, interference-fit installation that minimizes the risk of loosening or stripping critical for maintaining optimal engine performance and structural integrity. The set includes a variety of head styles, lengths, and thread sizes tailored to the 4.7L and 5.7L engine s critical components, such as the cylinder head, oil pan, intake manifold, and valve cover, where precision and reliability are non-negotiable. Whether you're performing a rebuild, upgrading a high-performance engine, or addressing a bolt-related failure, this bolt set provides the confidence of OEM-grade quality, backed by Mopar s reputation for authenticity and performance. Built to withstand the demands of aggressive driving, racing, and heavy-duty applications, these fasteners are an essential component for enthusiasts and professionals seeking to preserve the integrity of their Ford powerplant.
The **Mopar 6508226AA Bolt Set** is designed for the 4.7L and 5.7L Hemi engines (used in vehicles like the Chrysler 300, Dodge Charger, and Jeep Grand Cherokee). Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.
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### **Pros**
1. **High-Quality Materials**
The bolts are made from **grade 8.8 steel**, which provides excellent strength and durability. This ensures they can withstand high torque and engine stress without stretching or breaking.
2. **Correct Specifications for Hemi Engines**
The bolts are **OEM-replacement parts**, meaning they meet Chrysler s original engineering standards for the 4.7L and 5.7L Hemi engines. This reduces the risk of improper fitment or premature failure.
3. **Proper Thread Pitch and Length**
The bolts are designed to match the exact thread pitch and length required for the cylinder head, intake manifold, and other critical engine components. This prevents cross-threading or improper seating.
4. **Torque Specifications Included**
Mopar provides **torque values** for proper installation, which is crucial for preventing overtightening (which can damage threads) or undertightening (which can lead to leaks or loosening).
5. **Reliable Brand Reputation**
Mopar (Chrysler s original equipment supplier) is known for producing **consistent, high-quality aftermarket parts** that meet or exceed OEM standards. This reduces the risk of counterfeit or subpar replacements.
6. **Easy to Find and Install**
The bolts are **widely available** at auto parts stores (O Reilly, AutoZone, RockAuto) and online (Amazon, MoparDirect). They are also straightforward to install with standard tools.
7. **Long-Term Durability**
Since these bolts are designed for high-performance applications, they are less likely to fail over time compared to cheaper alternatives, especially in high-mileage or modified engines.
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### **Cons**
1. **Higher Cost Than Generic Bolts**
While not excessively expensive, Mopar bolts are **more costly than generic or aftermarket alternatives** (e.g., AC Delco, ACDelco, or no-name brands). For budget-conscious buyers, this may be a drawback.
2. **Potential for Overkill in Some Applications**
If you are working on a **stock or lightly modified engine**, some mechanics argue that **grade 5 or grade 8 bolts** (common in aftermarket kits) may suffice. Mopar s grade 8.8 bolts are **overkill for basic maintenance**, though they still provide peace of mind.
3. **Mixed Reviews on Thread Coating**
Some users report that Mopar bolts have a **light anti-seize coating**, which can be helpful for preventing galling. However, others find that the coating is **not as robust as specialized thread-locking compounds** (e.g., Loctite 271), which some prefer for critical applications.
4. **Limited Availability in Bulk**
While individual bolts are easy to find, **bulk purchases** (e.g., for engine rebuilds) may require ordering directly from Mopar or specialty suppliers, which can be less convenient than buying from a local auto parts store.
5. **Potential for Misuse if Not Torqued Correctly**
Even high-quality bolts can fail if **overtorqued**, leading to stripped threads or warped components. This risk applies to any bolt set, but it s worth emphasizing proper torque procedures.
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### **Conclusion**
The **Mopar 6508226AA Bolt Set** is a **strong, reliable choice** for anyone working on a **4.7L or 5.7L Hemi engine**, especially if you prioritize **OEM quality, durability, and ease of installation**. While slightly more expensive than generic alternatives, the **grade 8.8 steel and proper specifications** justify the cost for serious mechanics, performance enthusiasts, or those performing **major engine work**.
For **basic maintenance** (e.g., replacing a single bolt), a **grade 8 or grade 5 bolt** from a reputable brand (like ACDelco or STA-BIL) may be sufficient and more cost-effective. However, if you re **rebuilding an engine, modifying a Hemi, or ensuring long-term reliability**, the Mopar bolts are an excellent investment.
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### **Recommendation**
- **Buy the Mopar 6508226AA Bolt Set if:**- You are working on a **4.7L or 5.7L Hemi engine** and want **OEM-quality bolts**.
- You are performing a **major engine rebuild or high-performance modification**.
- You prefer **brand-name reliability** over cheaper alternatives.
- You want **clear torque specifications** included with the purchase.
- **Consider alternatives if:**- You are on a **tight budget** and only need a few bolts for minor repairs (generic grade 8 bolts may suffice).
- You are working on a **non-Hemi engine** where Mopar bolts are not necessary.
- You prefer **specialized coatings** (e.g., thread-locking compounds) for critical applications.
**Final Verdict:** For most **Hemi engine applications**, the Mopar bolt set is the **best choice** due to its **reliability, compatibility, and peace of mind**. However, weigh the cost against your specific needs before purchasing.
OEM set of 3 used on 4.7 and 5.7 engines 01-11 Dakota, 01-09 Drongo, 04-11 Ram 1500.