1. Cylinder Heads & Parts Engines Components For Sale
  2. sku: 12177967402949604
  3. ATK ENGINES 2CW6

ATK ENGINES 2CW6 Cylinder Head Mali 653517131028

fits model: Impala, Lumina. make: Chevy. year: 2000–2003.

2cw6 Atk Engines Remanufactured Cylinder Head 2000-2003 Chevy Impala Lumina Mali

( Brand: Atk Engines ), ( Manufacturer Part Number: 2CW6 ), ( Part Type: Cylinder Head ), ( Country Of Origin: Mex ), ( UPC: 653517131028 )

Review ATK ENGINES Remanufactured Cylinder Head Chevy Mali fits IMPALA LUMINA 2000–2003

The **ATK Engines 2CW 6-Cylinder Head for 2000 2003 Chevrolet Impala, Lumina, and Malibu** is a meticulously crafted, high-performance replacement cylinder head designed to restore and enhance the breathing capacity of your small-block Chevrolet V8 engine. Engineered to meet or exceed OEM specifications, this head is forged from premium materials, ensuring durability and reliability under high-stress conditions, whether you re pushing for increased horsepower in a street rod, a high-performance cruiser, or a competition engine. The **2CW casting** features a robust, high-flow design with precision-machined combustion chambers and optimized port geometry, allowing for superior airflow and improved scavenging critical components for maximizing power output while maintaining efficiency. The head is equipped with **high-quality valve seats** and **stainless steel valves**, which resist wear and corrosion, extending the life of your engine and reducing the risk of catastrophic failure. Whether you re running a mild camshaft for daily driving or a more aggressive profile for track use, this head is built to handle the demands of modern performance applications, including forced induction setups when paired with the right supporting components. ATK Engines reputation for quality and precision engineering ensures that this part is not just a direct replacement but an upgrade, offering better performance than stock while maintaining compatibility with stock or aftermarket components. Perfect for restorers, tuners, and enthusiasts looking to breathe new life into their classic or modern small-block Chevy, this cylinder head is a standout choice for those who demand excellence in both performance and longevity.

### **Pros and Cons of Buying an ATK Engines 2CW 6-Cylinder Head (2000 2003 Chevy Impala/Lumina/Mali)**

#### **Pros:**

1. **Cost-Effective Performance Upgrade** The 2CW head is a popular aftermarket option for improving airflow and power in the GM 2.2L or 2.4L inline-6 engines found in these vehicles. It is significantly cheaper than a full engine swap or a high-performance block upgrade.

2. **Improved Airflow and Horsepower** The 2CW head features larger valves, better porting, and upgraded internals, which can increase horsepower and torque compared to the stock head. Many users report gains of 10 30 horsepower, depending on tuning and supporting mods.

3. **Compatibility with Stock Engines** The 2CW head is designed to bolt onto the original GM block, meaning no major engine modifications are required beyond swapping the head. This makes it a straightforward project for DIYers.

4. **Aftermarket Support** ATK Engines is a well-known brand with a strong reputation in the performance community. They provide detailed installation guides, gaskets, and often offer warranty support for their products.

5. **Potential for Further Mods** Once installed, the 2CW head can pair well with other performance upgrades, such as a turbocharger, supercharger, or high-flow fuel system, allowing for even greater power gains.

6. **Reliability for the Price** While not as robust as a high-end performance engine, the 2CW head is built to handle moderate power levels and is less likely to fail catastrophically compared to a stock head under similar stress.

7. **Common Mod for Classic GM 6-Cylinders** Since these vehicles are popular in the classic car scene, finding parts, tuning help, and community support is relatively easy.

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#### **Cons:**

1. **Limited Power Potential** While the 2CW head improves performance, it is not designed for extreme power levels (e.g., 300 horsepower). Pushing it too hard without supporting mods (e.g., upgraded internals, fuel system, cooling) can lead to premature failure.

2. **Requires Supporting Modifications** Simply swapping the head will not yield significant gains without additional upgrades. You ll likely need:

- A high-flow fuel pump and injectors

- A performance tune (ECU flash or standalone controller)

- Upgraded ignition components (coils, wires, distributor if applicable)

- Reinforced internals (pistons, rods, crankshaft) if pushing for higher power

- A stronger cooling system (radiator, water pump, thermostat)

3. **Potential for Oil Consumption** Some users report increased oil consumption with the 2CW head, especially if the engine is modified for higher power. This may require more frequent oil changes or additional mods like piston rings or oil control rings.

4. **Installation Complexity** Swapping a cylinder head is not a beginner-level project. It requires:

- Proper gasket surfaces (may need machining)

- Valve job (lapping or grinding)

- Torque specifications (over-torquing can warp the head)

- Potential for leaks if not installed correctly

- Time and mechanical skill to complete properly

5. **No Guarantee of Stock Reliability** The original 2.2L/2.4L engines in these vehicles were not known for longevity, especially with high mileage or poor maintenance. The 2CW head upgrade may help with power but won t fix underlying engine issues (e.g., worn bearings, rod knock, or head gasket leaks).

6. **Depreciation and Resale Value** Modified vehicles, especially with aftermarket heads, typically have lower resale value than stock or lightly modified cars. If you plan to sell later, the upgrade may not recoup its cost.

7. **Potential for Voiding Warranty** If the vehicle is still under manufacturer warranty, modifying it with an aftermarket head may void coverage, leaving you responsible for any future engine issues.

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### **Ending Conclusion:**

The ATK Engines 2CW cylinder head is a **solid, budget-friendly option** for owners of 2000 2003 Chevy Impala, Lumina, or Mali looking to improve power without a full engine rebuild. It is particularly well-suited for **lightly modified or street-driven vehicles** where moderate power gains (20 40 horsepower) are desired. However, it is **not a "set and forget" upgrade** it requires supporting modifications to reach its full potential and avoid reliability issues.

If you are **mechanically inclined, willing to invest in additional mods, and not chasing extreme power**, the 2CW head can be a rewarding project. For those seeking **high reliability, longevity, or extreme performance**, a more substantial engine upgrade (e.g., a turbocharged or supercharged 2.4L, a LS swap, or a modern inline-6) may be a better long-term solution.

---

### **Recommendation:** - **Buy the 2CW head if:**

- You want a **cost-effective power increase** for daily driving or light cruising.

- You are **comfortable with mechanical work** and willing to invest in supporting mods (fuel, ignition, tune).

- Your engine is **otherwise healthy** (no major wear or damage).

- You plan to **keep the vehicle long-term** and enjoy the project aspect.

- **Avoid the 2CW head if:**

- You need **high reliability or extreme power** (300 horsepower).

- You are **not mechanically inclined** or lack time for a detailed installation.

- Your engine has **significant wear** (e.g., rod knock, blown head gasket) that needs addressing first.

- You prioritize **resale value** or plan to sell the vehicle soon.

For the best results, pair the 2CW head with:

- A **high-quality tune** (e.g., from a local tuner or a reputable standalone ECU like Haltech or Link).

- **Upgraded fuel delivery** (high-flow pump, larger injectors).

- **Reinforced internals** (if pushing for higher power).

- **Proper cooling and lubrication** (radiator upgrade, synthetic oil, oil catch can if needed).

If you re unsure about the project s scope, consider consulting a **performance engine builder** before committing to the swap.

Details:

American Express.

part #: 2cw6 prices

  • $406.39-$497.99

specifications cylinderheapar:

  • for models: Impala, Lumina
  • for makes: Chevy
  • for years: 2000-2003
  • brand: Atk Engines
  • mpn: 2cw6
  • part type: Cylinder Head
  • country of origin: Mex
  • upc: 653517131028

shipping cylinderheapar:

  • cost: $0.00
  • transit: 4-6 Days
  • class: Standard
  • type: Fixed
  • service: Standard

offer cylinderheapar:

  • quantity: 1
  • options: Ship-to-home
  • sold: 0
  • availability: In Stock
  • started: May 24, 2026

returns cylinderheapar:

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

payments cylinderheapar:

  • credit card: Mastercard
  • wallet: Google-pay
  • other

seller cylinderheapar:

  • # reviews: 631706
  • city: , Ohio
  • rating: 99.5%

general cylinderheapar:

  • condition: Remanufactured
  • Car Truck Parts Accessories > Engines Engine Parts > Cylinder Heads
for models: impala, lumina, for makes: chevy, for years: 2000-2003, part type: cylinder head, country of origin: mex,
category: auto parts > car truck parts accessories > engines engine parts > cylinder heads, sku: 12177967402949604,
Atk Engines 2CW6 Is Similar To:
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2 offers $406.39–$497.99 USD
  • Remanufactured. Offer #1 priced at $406.39 + $0.00 shipping estimate = $406.39* total. FREE SHIPPING
  • New. Offer #2 priced at $497.99 + $0.00 shipping estimate = $497.99* total. Mini Passenger Van 4-Door Engine Cylinder Head.FREE SHIPPING

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