MOPAR 4397636 Nos Engine Piston Kit 186T

( Brand: Mopar ), ( Manufacturer Part Number: 4397636 ), ( Part Type: Engine Piston )

Review MOPAR Nos Engine Piston Kit 1986 Dodge fits DAYTONA TURBO 1986-88

The **Mopar 4397636 NOS Engine Piston Kit for the 186T Turbocharged 1986-1988 Dodge Daytona** represents a meticulously engineered upgrade designed to restore or enhance the performance of one of the most iconic high-performance engines from the late 1980s. This kit is specifically tailored for the legendary **305 cubic-inch (5.0L) Magnum V8**, which powers the turbocharged 186T model a vehicle celebrated for its aggressive styling, cutting-edge turbocharging technology, and raw, high-revving power. The kit includes a complete set of **new-for-equipment (NFE) pistons**, forged from high-quality **4340 steel**, a material renowned for its exceptional strength, durability, and resistance to warping under extreme heat and pressure. These pistons feature **hollow crowns** to improve heat dissipation, ensuring consistent performance even under heavy boost conditions, while the **precision-machined domes** are optimized for efficient combustion, reducing detonation risk and maximizing horsepower output. Complementing the pistons are **high-performance rings** crafted from premium materials like **chrome or molybdenum-coated steel** to minimize oil consumption, enhance sealing, and extend engine life. The kit also includes **new piston pins**, often made from **hardened steel or nitrided alloy**, to withstand the stresses of turbocharging and high RPMs without compromising reliability. Whether you're restoring a classic Daytona to its original glory or pushing it to the limits of modern tuning, this Mopar NOS kit ensures a seamless fit with the factory engine block, maintaining the integrity of the original design while delivering the performance upgrades expected from a true enthusiast s build. With its blend of heritage components and modern engineering, this piston kit is an essential choice for anyone seeking to revive or refine the legendary 186T s legendary power delivery.

### **Pros and Cons of Buying a Mopar 4397636 NOS Engine Piston Kit for a 1986-88 Dodge Daytona (186T Turbo)**

#### **Pros**

1. **New Old Stock (NOS) Quality** The kit is factory fresh, meaning it has not been used or worn in prior applications. This ensures optimal performance and longevity, as it hasn t been subjected to wear from previous installations.

2. **Direct Fitment** The 4397636 piston kit is specifically designed for the **318/360 V8 engines** found in the **1986-88 Dodge Daytona (186T Turbo)**. This eliminates the need for modifications or aftermarket adjustments, ensuring a straightforward installation.

3. **Turbocharged Application** The kit is rated for turbocharged use, meaning it is built to handle the increased stress and heat generated by forced induction. This makes it a reliable choice for maintaining engine integrity under boost.

4. **Durability & Performance** Mopar (Chrysler s original parts division) uses high-quality materials in their piston kits, including forged pistons, which provide better strength and resistance to wear compared to cast pistons.

5. **Compatibility with Stock & Modified Engines** Whether you plan to keep the engine stock or push it with modifications (e.g., bigger turbo, upgraded fuel system), this kit provides a solid foundation for both scenarios.

6. **Ease of Installation** Since it s a direct-fit kit, it should install similarly to an OEM piston replacement, reducing the complexity of the job compared to aftermarket kits that may require additional machining or gasket adjustments.

7. **Reliability for High-Mileage or Restored Engines** If your Daytona s engine has significant mileage or has been neglected, replacing the pistons with a NOS kit can restore performance and prevent catastrophic failure (e.g., seized pistons, ring land wear).

8. **Support for Future Modifications** If you plan to add a larger turbo, forced induction, or other performance upgrades later, a fresh piston kit ensures the engine can handle the increased stress without premature failure.

---

#### **Cons**

1. **Cost** NOS parts are typically more expensive than aftermarket or used alternatives. While this kit is a direct replacement, the price may be higher than budget-friendly piston sets from other brands.

2. **Limited Availability & Lead Times** NOS parts can sometimes be harder to source quickly, especially if Mopar has discontinued the exact part number. You may need to order from specialty suppliers, which could delay your project.

3. **No Upgrades Beyond Stock Specs** Unlike aftermarket kits, this is a **stock-spec replacement**. If you want performance gains (e.g., higher compression, stronger rings, or exotic materials), you ll need to look elsewhere.

4. **Installation Requires Engine Disassembly** Replacing pistons requires removing the engine from the vehicle, stripping it down, and performing a full rebuild (or at least a piston replacement). This is a labor-intensive job best left to experienced mechanics unless you have the skills and tools.

5. **Potential for Hidden Engine Issues** If your Daytona s engine has other problems (e.g., worn bearings, rod damage, or head gasket leaks), replacing just the pistons won t fix those. A full engine inspection is recommended before proceeding.

6. **Turbo-Specific Considerations** While the kit is turbo-rated, if your turbo is significantly larger or your engine is heavily modified, you may still need additional support (e.g., upgraded fueling, cooling, or oil system) to prevent stress on the pistons.

7. **No Warranty on Used NOS Parts** Some NOS parts may come with limited or no warranty, especially if purchased from third-party sellers. Mopar s original warranty may not apply if the part was previously owned.

8. **Risk of Overkill for Mild Builds** If your Daytona is a daily driver with minimal modifications, a NOS piston kit might be excessive compared to a more affordable aftermarket kit that still provides adequate protection.

---

### **Conclusion**

The **Mopar 4397636 NOS Engine Piston Kit** is an excellent choice if you want a **direct, high-quality replacement** for your **1986-88 Dodge Daytona s 318/360 turbo V8**. It offers **reliability, durability, and compatibility** with both stock and mildly modified engines. However, it comes at a **higher cost** and requires **significant labor** to install.

- **Restoration projects** where you want to return the engine to factory condition.

- **Performance builds** where you plan to keep the engine close to stock but want to ensure long-term reliability.

- **Owners who prioritize Mopar s reputation for quality** over aftermarket alternatives.

If you re on a tight budget or looking for **performance upgrades beyond stock specs**, an aftermarket piston kit (e.g., from **Clevite, Mahle, or JE Pistons**) might be a more cost-effective option. However, for a **straightforward, high-quality replacement**, the NOS kit is a strong recommendation.

### **Final Recommendation**

You want a **factory-matched, unused part** for a clean rebuild.

Your engine is in decent condition (no major internal damage).

You re willing to invest in **quality and longevity** over cost savings.

You plan to **keep modifications minimal** or are restoring the engine to stock.

You need **performance upgrades** (e.g., higher compression, stronger materials).

Budget is a major concern (aftermarket kits may suffice).

Your engine has **hidden issues** that require additional repairs beyond pistons.

For most **1986-88 Daytona owners** looking for a **reliable, direct-fit piston replacement**, this NOS kit is a **solid choice** just ensure the rest of the engine is in good shape before installation.

Details:

part #: 4397636 prices

• $59.99-$107.99

specifications engimou:

• for models: Turbo, Daytona
• for makes: Dodge, Mopar
• for years: 1986-88
• brand: Mopar
• mpn: 4397636
• part type: Engine Piston

returns engimou:

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

shipping engimou:

• carrier: FedEx
• cost: $10.90
• type: Fixed
• transit: 3-6 Days
• class: Economy
• service: FedEx Ground Economy

offer engimou:

• sold: 0
• options: Ship-to-home
• quantity: 2
• started: March 8, 2026
• best offers: True
• availability: In Stock

payments engimou:

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

general engimou:

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

seller engimou:

• rating: 99.5%
• city: Campbellsville, Kentucky
• # reviews: 7380

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