MOPAR 68388806AA Bolt Kit

( Manufacturer Part Number: 68388806AA ), ( Part Type: Bolt ), ( Product Type: Engine ), ( Fitment Type: Direct Replacement ), ( Product Subtype: Motor Mounts ), ( Department: Replacement )

Review MOPAR Bolt Kit

The **Mopar 68388806AA Bolt Kit** is a meticulously engineered, high-performance accessory designed specifically for Chrysler, Dodge, Jeep, and Ram vehicles equipped with the iconic **Hemi engine**, particularly those featuring the **4.0L, 5.7L, 6.1L, or 6.4L Hemi ** configurations. This premium bolt kit is crafted to enhance the structural integrity, rigidity, and overall durability of the engine bay, ensuring optimal performance, reduced vibration, and improved longevity especially under high-stress conditions like towing, heavy-duty hauling, or aggressive driving. Engineered from **high-strength, cold-forged steel**, each bolt in this kit is precision-machined to exacting tolerances, delivering superior tensile strength and resistance to fatigue, corrosion, and heat qualities that far exceed the standards of conventional fasteners. The kit includes a **comprehensive selection of critical bolts and studs**, including **main cap bolts, cylinder head bolts, oil pan bolts, and other high-stress fasteners**, all of which are pre-lubricated with a specialized anti-seize compound to prevent galling, seizing, and cross-threading, even in extreme temperature fluctuations. Whether you're a performance enthusiast pushing your Hemi to its limits, a professional mechanic seeking reliable components for high-mileage vehicles, or a towing specialist requiring uncompromising strength, this bolt kit is a game-changer. Its **universal compatibility** with a wide range of Hemi applications from muscle cars and trucks to off-road and marine adaptations makes it an indispensable addition to any serious engine build or maintenance project. With Mopar s reputation for quality and durability, this bolt kit ensures that your Hemi engine remains at peak performance, free from the risks of bolt failure or premature wear, while also providing peace of mind for years of trouble-free operation.

The **Mopar 68388806AA bolt kit** is designed to replace the bolts in a Ford 302/351 Windsor engine s cylinder head, typically used in applications like the **Ford 302 (5.0L) or 351 Cleveland (5.8L)** engines. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of buying a Mopar 68388806AA Bolt Kit**

1. **High-Quality Materials** Mopar (Chrysler s aftermarket brand) uses **ARP-grade steel bolts**, which are stronger and more durable than standard OEM bolts. These bolts are designed to withstand higher torque and prevent loosening under heavy loads, making them ideal for high-performance or modified engines.

2. **Correct Thread Pitch and Length** The bolts in this kit are **precisely machined** to match the original Ford specifications, ensuring a proper fit without over-tightening or under-tightening. This reduces the risk of stripping threads or damaging the cylinder head.

3. **Heat-Treated for Strength** The bolts undergo **heat treatment**, increasing their tensile strength and resistance to fatigue. This is particularly useful in high-RPM or forced-induction applications where cylinder heads experience greater stress.

4. **Compatibility with Aftermarket Upgrades** If you ve modified your engine with **aftermarket heads (e.g., Edelbrock, JE, or Holley), intake manifolds, or superchargers**, these bolts are often recommended to handle the increased stress.

5. **Ease of Installation** The kit includes **all necessary bolts** (typically 8-10 bolts, depending on the head configuration) with clear labeling, making it straightforward to replace worn or stripped OEM bolts.

6. **Cost-Effective for Performance Builds** While slightly more expensive than generic bolts, they are **far cheaper than full head rebuilds** and provide a significant upgrade in reliability compared to OEM parts.

7. **Widely Available and Trusted Brand** Mopar is a well-known brand with a reputation for **reliable automotive parts**, and this bolt kit is commonly used by mechanics and DIY enthusiasts.

8. **Prevents Head Gasket Failure** Properly torqued ARP bolts ensure even compression across the head, reducing the risk of **head gasket leaks or warping** over time.

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### **Cons of buying a Mopar 68388806AA Bolt Kit**

1. **Higher Upfront Cost** Compared to **generic or OEM bolts**, this kit is more expensive. For example, a basic OEM bolt set might cost **$20 $40**, while the Mopar kit typically ranges from **$80 $120**, depending on the retailer.

2. **Requires Proper Torquing** While these bolts are stronger, **over-torquing can still damage the head or bolts**. You must follow **specific torque specs** (usually **80 90 ft-lbs for Ford 302/351 heads**) and use a **torque wrench** to avoid issues.

3. **Not a Permanent Fix for Head Issues** If your cylinder head is **warped, cracked, or has damaged threads**, replacing bolts alone won t solve the problem. You may still need a **head rebuild or replacement**.

4. **Limited Use Beyond Ford 302/351 Windsor** This kit is **specific to Ford 302/351 Windsor engines**. If you have a **Ford 302 Cleveland, 351 Cleveland, or other engine variants**, you may need a different bolt set.

5. **Installation Knowledge Required** If you re not experienced with **engine disassembly and reassembly**, improper installation (e.g., cross-threading, incorrect torque order) can lead to **sealing failures or damage**.

6. **May Not Be Necessary for Stock Engines** If your engine is **stock and runs reliably**, replacing bolts may be **overkill** unless you re experiencing **leaks, misfires, or bolt failure**.

7. **Potential for Counterfeit Products** Some online sellers may offer **fake Mopar parts**. Always purchase from **reputable dealers (e.g., RockAuto, Summit Racing, local Mopar shops)** to ensure authenticity.

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### **Conclusion**

The **Mopar 68388806AA bolt kit** is a **high-quality, performance-oriented upgrade** for Ford 302/351 Windsor engines, particularly in **high-performance, modified, or forced-induction applications**. Its **ARP-grade bolts** provide superior strength and reliability compared to OEM parts, reducing the risk of bolt failure and head gasket issues. However, it is **not a universal fix** it requires proper installation and may not be necessary for stock engines.

- You re **modifying your engine** (turbo, supercharger, high RPMs).

- You ve **replaced your head gasket** and want to ensure long-term sealing.

- Your **OEM bolts are stripped or worn**.

- You re **rebuilding or upgrading** a Ford 302/351 engine.

- Your engine is **stock and running fine**.

- You re on a **tight budget** and can t justify the extra cost.

- Your **head is damaged** (warped, cracked) and needs professional attention.

---

### **Recommendation**

You re performing a **head gasket replacement** or **engine rebuild**.

You re **adding forced induction (turbo/supercharger)** or **high-performance components**.

Your **OEM bolts are damaged or stripped**.

You want **peace of mind** knowing your bolts won t fail under stress.

Your engine is **stock and reliable** with no signs of bolt failure.

You re **not experienced** with engine work and can t properly torque the bolts.

You re **on a budget** and can use **OEM or aftermarket bolts** (e.g., ARP s own bolts) instead.

- **Always follow the torque sequence** (Ford s recommended pattern) and **specs** (80 90 ft-lbs for most applications).

- **Use a torque wrench** never guess the tightness.

- **Check for head warpage** before installing new bolts.

- **Consider using ARP s gasket surface sealant** (if needed) for extra protection.

- **Purchase from a trusted source** to avoid counterfeit parts.

**Final Verdict:** For **performance builds, modified engines, or head gasket replacements**, the **Mopar 68388806AA bolt kit is a smart, cost-effective upgrade**. For **stock engines**, it may not be essential unless you re experiencing bolt-related issues. If in doubt, consult a **mechanic or engine specialist** before installation.

Details:

Designed according to the highest quality standards. Designed to enhance performance, style, and long-term value of your vehicle. Highly resistant to wear and tear for long-lasting service. Meticulously engineered to ensure excellent performance.

Bolt Kit by Mopar. Features: Ideal solution to keep your vehicle in top shape.

part #: 68388806aa prices

• $16.16-$17.84

specifications engimou:

• for makes: Mopar
• mpn: 68388806aa
• part type: Bolt
• product type: Engine
• fitment type: Direct Replacement
• product subtype: Motor Mounts
• department: Replacement

offer engimou:

• options: Ship-to-home
• availability: In Stock
• quantity: 5
• sold: 0
• started: June 3, 2026

returns engimou:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

shipping engimou:

• carrier: FedEx
• cost: $20.50
• transit: 3-8 Days
• service: FedEx Ground / FedEx Home Delivery
• type: Calculated
• class: Standard

seller engimou:

• city: Doylestown, Pennsylvania
• # reviews: 13276
• rating: 95.7%

payments engimou:

• wallet: Paypal
• credit card: Diners-club
• other

general engimou:

• condition: New
• Car Truck Parts Accessories > Engines Engine Parts > Engine Mounts

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