MITSUBISHI MD165613 Engine Cylinder Head Dohc Stealth 3.0L V6 VR4

( Brand: Mitsubishi ), ( Manufacturer Part Number: MD165613 ), ( Type: Cylinder Head ), ( Material: Aluminum ), ( Vintage Part: No ), ( Finish: Unfinished ), ( Country Of Origin: Japan )

Review MITSUBISHI Engine Cylinder Head 3.0l Dohc V6 Vr4 Oem Dodge Stealth fits 3000GT

The **Mitsubishi MD165613 engine cylinder head** is a precision-engineered component integral to the high-performance **3.0L DOHC V6 VR4** found in legendary vehicles like the **Dodge Stealth 3000GT** and **Mitsubishi 3000GT**, a car renowned for its striking design, aggressive stance, and exhilarating driving dynamics. This cylinder head is a masterpiece of automotive engineering, meticulously crafted to deliver an optimal balance of power, efficiency, and reliability. The **VR4 (Variable Reverse 4-valve)** head features a sophisticated **double overhead camshaft (DOHC)** design, where each cylinder is served by four valves two intake and two exhaust operated by a pair of camshafts driven by a timing chain. The intake valves, typically forged from durable materials, are precision-machined to ensure smooth airflow, while the exhaust valves, often constructed from heat-resistant alloys, are designed to withstand extreme temperatures without warping or losing efficiency. The head incorporates **variable valve timing (VVT)** technology, allowing the camshafts to adjust their timing dynamically, optimizing engine performance across the entire RPM range from low-end torque to high-revving power delivery. The **3.0L VR4** engine, paired with this cylinder head, produces a thrilling **240 270 horsepower** (depending on tuning and modifications), making it a favorite among enthusiasts for its blend of street-legal practicality and track-ready potential.

The **MD165613 cylinder head** is built with **high-strength cast iron** or **aluminum alloy** (depending on the specific application), ensuring durability while maintaining a lightweight profile to reduce rotational inertia and improve engine responsiveness. The head features **individual valve springs and retainers**, allowing for precise valve control and reducing the risk of valve float at high RPMs a critical consideration for the VR4 s aggressive powerband. The **porting and flow characteristics** of this head are finely tuned to maximize airflow, with **large, smooth intake ports** and **efficient exhaust ports** designed to minimize turbulence and resistance. The **combustion chamber shape** is optimized for efficient fuel-air mixture ignition, contributing to better combustion efficiency and reduced emissions. Additionally, the head includes **integrated spark plug wells** and **precise valve guide alignment**, ensuring consistent ignition and valve operation.

For restoration or performance applications, this cylinder head is a sought-after part due to its **OEM quality and compatibility** with the **Dodge Stealth 3000GT, Mitsubishi 3000GT, and related Mitsubishi models** from the late 1980s and early 1990s. Whether used in a **stock restoration, a high-performance build, or a custom engine swap**, the **MD165613 cylinder head** delivers the foundation for a **reliable, high-revving V6** that embodies the spirit of the VR4 blending **Japanese precision, American muscle aesthetics, and a driving experience that remains unmatched** in its class. Proper maintenance, including **regular valve adjustments, head gasket replacement, and cooling system checks**, ensures this component continues to perform flawlessly, making it a **cornerstone of the VR4 s legendary reputation**.

### **Pros and Cons of Buying a Mitsubishi MD165613 Engine Cylinder Head (3.0L DOHC V6 VR4, Used in 3000GT/Dodge Stealth)**

#### **Pros**

1. **Performance Potential** The VR4 engine is a high-revving, naturally aspirated V6 known for its strong power band (220 250 hp in stock form) and potential for significant upgrades. The cylinder head design allows for good airflow, making it suitable for forced induction (turbo/supercharger) modifications.

2. **Aftermarket Support** The VR4 has a strong aftermarket following, with readily available parts like intake manifolds, exhaust headers, camshafts, and performance tuning solutions. Companies like **Mitsubishi Motors North America (MMNA), JE, and others** produce aftermarket parts, and the engine is well-documented in forums (e.g., **VR4.net, TurboVR4.com**).

3. **Durability with Proper Maintenance** When maintained correctly (regular valve adjustments, oil changes, and cooling system checks), the VR4 can last well over 200,000 miles. The cylinder heads themselves are forged and designed for high RPM, reducing the risk of catastrophic failure if cared for.

4. **Modularity & Upgrade Path** The engine is relatively easy to work on, with a simple design that allows for bolt-on upgrades. Common mods include:

- **Intake/Exhaust Upgrades** (e.g., **Mitsubishi Performance, JE, or custom headers**)

- **Camshaft Swaps** (e.g., **JE 280 or 300 camshafts** for more power)

- **Turbocharging/Supercharging** (popular with **Garrett/TurboVR4 builds**)

- **Fuel System Upgrades** (e.g., **Megajet, Link, or custom fuel injectors**)

5. **Parts Availability** While some original equipment parts may be hard to find, the VR4 is not a rare engine. Used cylinder heads, gaskets, and related components can often be sourced from junkyards, eBay, or specialty suppliers.

6. **Classic/Collectible Status** The 3000GT and Stealth are cult-classic cars, and the VR4 engine is a key part of their appeal. Restoring or modifying one can be a rewarding hobby for enthusiasts.

7. **Lower Cost Than Modern Engines** Compared to modern turbocharged or hybrid engines, the VR4 is relatively inexpensive to buy, modify, and maintain, especially if sourcing used parts.

---

#### **Cons**

1. **Age & Wear** The VR4 is a **1990s-era engine**, meaning it was not built to the same durability standards as modern engines. Common issues include:

- **Valve Train Wear** (valves, springs, and retainers can wear out over time, requiring frequent adjustments every 30,000 60,000 miles).

- **Rod Bearings & Main Bearings** (some engines develop oil leaks or bearing failure if not maintained properly).

- **Timing Chain & Tensioner** (can stretch or fail, leading to timing issues).

- **Head Gasket Leaks** (common in high-mileage examples, often requiring a full head rebuild).

2. **Complex Valve Adjustment Process** Unlike modern engines with hydraulic lifters, the VR4 requires **manual valve adjustments** every few thousand miles. This adds maintenance time and cost if done professionally.

- **OBD-II retrofits** (for newer Stealths/3000GTs).

- **Smog compliance** (some states require strict emissions testing, which can be difficult with heavily modified engines).

- **EPA/SAE approval** if building a turbocharged version (requires testing and certification).

4. **Cooling System Demands** The VR4 is **thirsty for oil and coolant**, especially under forced induction. Overheating is a common failure mode, so a **high-performance cooling system** (e.g., **aftermarket radiator, upgraded water pump, thermostat**) is often necessary for modified engines.

5. **Transmission & Drivetrain Limitations** The **4-speed automatic (4A4S) or 5-speed manual** in these cars is not as robust as modern transmissions. Clutch wear (in manuals) and torque converter issues (in automatics) can be costly to repair.

6. **Rust & Corrosion** Many 3000GTs and Stealths suffer from **rust in the chassis, suspension, and undercarriage**, especially in snowy or salted climates. A full rust inspection and repair may be needed before purchasing.

7. **Insurance & Legal Issues** Some insurance companies charge **high premiums** for classic cars, and modified versions (especially turbocharged) may be difficult to insure. Additionally, **street-legal modifications** (e.g., exhaust, intake) can sometimes violate local noise ordinances.

8. **Limited Stock Availability** While the engine itself is common, **fully restored 3000GTs/Stealths with original VR4 engines** are rare and often expensive. If you want a complete project car, you may need to source parts separately.

---

### **Conclusion & Recommendation**

- **Enthusiasts who enjoy mechanical projects** and don t mind spending time on maintenance (valve adjustments, cooling system checks, etc.).

- **Those looking for a high-revving, naturally aspirated or turbocharged V6** with strong aftermarket support.

- **Owners who prioritize fun over daily drivability** and are okay with potential reliability quirks.

- **Budget-conscious buyers** who can find a used cylinder head or complete engine for a reasonable price.

- **People who want a plug-and-play, low-maintenance engine** (modern turbocharged or hybrid engines are better for that).

- **Those in emissions-restrictive areas** who want to keep the car street-legal without major modifications.

- **Buyers who dislike working on engines** (the VR4 requires more attention than modern units).

- **Those who need a reliable daily driver** (the VR4 is not as durable as a modern 4-cylinder or V8).

If you re **willing to invest time and money into maintenance and upgrades**, the **Mitsubishi MD165613 VR4 cylinder head** is an excellent choice for a **high-performance, mod-friendly V6**. It offers **great potential for power gains** (especially with turbocharging) and a **strong community** for support.

However, if you re **not comfortable with mechanical work** or need a **reliable, low-maintenance engine**, consider a **modern turbocharged 4-cylinder (e.g., Ford EcoBoost, Honda K20)** or a **used but well-maintained V8** instead.

- If buying a **used cylinder head**, inspect it for **warping, cracks, or excessive wear** (especially the combustion chambers and valve seats).

- If restoring a **3000GT/Stealth**, budget for **valve adjustments, cooling system upgrades, and potential transmission work**.

- If modifying for **forced induction**, plan for **fuel system upgrades, cooling improvements, and emissions compliance** if keeping it street-legal.

The VR4 is a **fantastic engine for the right owner** one who appreciates classic performance cars and isn t afraid of a little work.

Details:

This item is sold as pictured. Please look at each photo closely for details. This item is sold as with no warranty. Installed are the valves and springs.

This cylinder head is in rough condition as far cleanliness goes. This item has been sitting on a shelf. Please consider this a parts only cylinder head. This item will need to be thoroughly cleaned and refurbished in order perform properly.

This is a used item in okay condition. This is a cylinder head off of VR4 Mitsubishi 3000GT Engine.

part #: md165613 price

• $149.99

specifications cylinderheapar:

• for models: 3000gt
• for makes: Dodge, Mitsubishi
• brand: Mitsubishi
• mpn: Md165613
• type: Cylinder Head
• material: Aluminum
• vintage part: No
• finish: Unfinished
• country of origin: Japan

offer cylinderheapar:

• quantity: 1
• best offers: True
• options: Ship-to-home
• started: March 18, 2026
• sold: 0
• availability: In Stock

general cylinderheapar:

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

seller cylinderheapar:

• # reviews: 894
• rating: 100.0%
• city: Gravette, Arkansas

returns cylinderheapar:

• policy: No Returns

shipping cylinderheapar:

• cost: $29.03
• type: Calculated
• transit: 3-8 Days
• service: FedEx Ground Economy
• class: Economy
• carrier: FedEx

payments cylinderheapar:

• other
• wallet: Paypal
• credit card: Visa

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