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  3. GO POWERTRAIN GPT2NN89736AA

GO POWERTRAIN GPT2NN89736AA Cylinder Head Engine Block

fits model: Srs, Tacoma. make: Toyota. year: 2004.

Gpt2nn89736aa Go Powertrain Toyota Tacoma Srs Cylinder Head Engine Block Oem Used 2004

( Brand: Go Powertrain ), ( Manufacturer Part Number: GPT2NN89736AA ), ( Type: Cylinder Head ), ( Manufacturer Warranty: 1 Year ), ( Items Included: Bolts ), ( Material: Aluminum ), ( California Prop 65 Warning: This Product Can Expose You To Chemicals Including Chromium, Which Are Known To The State Of California To Cause Birth Defects Or Other Reproductive Harm. )

Review GO POWERTRAIN Toyota Cylinder Head Engine Block Oem Used fits TACOMA SRS 2004

The **Go Powertrain GPT2NN89736AA Toyota Tacoma SRS Cylinder Head and Engine Block Assembly (2004)** is a meticulously crafted, high-performance replacement component designed to restore or enhance the reliability and performance of your 2004 Toyota Tacoma s 4.7L V8 engine. Engineered to exact specifications, this **OEM-quality cylinder head and engine block set** is built from premium materials, ensuring durability, precision machining, and seamless integration with your vehicle s existing powertrain. The **SRS cylinder head** features a **four-valve design per cylinder**, optimized for improved airflow, better combustion efficiency, and enhanced throttle response, which translates to stronger horsepower and torque output while maintaining smooth operation. The **engine block** is forged from high-grade cast iron, providing exceptional strength and resistance to warping or cracking under high-stress conditions, such as towing heavy loads or operating under extreme temperatures. This assembly is fully compatible with the **2004 Toyota Tacoma s 4.7L 1UR-FE engine**, including the **SRS (Super Reliability System) variant**, which is known for its robust construction and durability in demanding applications like off-roading, hauling, or daily driving. Whether you re performing a full engine rebuild, replacing a damaged head due to overheating or failure, or upgrading for performance, this **Go Powertrain assembly** offers a cost-effective, high-quality solution that exceeds factory standards. Backed by rigorous quality control and designed for easy installation, it includes all necessary gaskets, bolts, and hardware to ensure a professional fit, reducing the risk of leaks or misalignment. Ideal for mechanics, DIY enthusiasts, and fleet operators, this component is a testament to Go Powertrain s commitment to delivering **reliable, performance-driven automotive solutions** that keep your Tacoma running at its best for years to come.

**Pros and Cons of Buying a 2004 Toyota Tacoma with a Go Powertrain GPT2NN89736AA (Toyota 4.7L V8) Engine Swap**

### **Pros**

1. **Increased Power and Performance**

The GPT2NN89736AA engine is a high-performance 4.7L V8 from the Toyota 2GR-FE series, often used in modified or turbocharged applications. This swap can significantly boost horsepower and torque compared to the stock 4.7L or 5.0L V8, making the Tacoma more capable for towing, hauling, or off-roading.

2. **Potential for Customization**

The 2GR-FE platform is widely supported by aftermarket parts, including turbochargers, superchargers, fuel systems, and supporting components. This allows for further modifications if desired, such as forced induction or engine tuning.

3. **Reliability of Toyota Engines**

Toyota s 4.7L and 2GR-FE engines are known for durability, especially when properly maintained. The 2GR-FE, in particular, is a robust design that can handle high-performance applications with the right upgrades.

4. **Potential for Better Fuel Economy (If Naturally Aspirated)**

If the engine is running stock or with minor modifications (e.g., a high-flow intake), it may achieve better fuel economy than a turbocharged or heavily modified engine. However, this depends on the specific setup.

5. **Compatibility with Tacoma Frame and Drivetrain**

The 2GR-FE is a direct bolt-on replacement for the stock 4.7L V8 in the 2004 Tacoma, meaning no major drivetrain modifications are required. The transmission (automatic or manual) and other components should remain compatible.

6. **Resale Value Potential**

If the swap is well-documented and the vehicle is maintained properly, it could appeal to enthusiasts looking for a high-performance Tacoma, potentially retaining some value.

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### **Cons**

1. **Cost of the Engine and Swap**

The GPT2NN89736AA engine itself can be expensive, especially if sourced from a reputable dealer or salvage yard. Additionally, labor costs for the swap (including transmission matching, wiring harness adjustments, and cooling system upgrades) can add up quickly.

2. **Transmission Compatibility Issues**

The 2GR-FE is often paired with a 6-speed manual transmission (U620F) in Toyota applications, while the stock 2004 Tacoma typically comes with a 4-speed automatic (U151E) or 5-speed manual (U140E). Matching the correct transmission requires additional work, such as a torque converter swap for automatic models or a full transmission rebuild for manual setups.

3. **Cooling System Upgrades Required**

The 2GR-FE generates more heat than the stock 4.7L, especially under forced induction. A larger radiator, upgraded water pump, and possibly an oil cooler may be necessary to prevent overheating.

4. **Fuel System Upgrades Needed**

The 2GR-FE may require a high-flow fuel pump, upgraded injectors, and a larger fuel tank if running significant power gains (e.g., turbocharged). Stock fuel systems are often inadequate for high-performance applications.

5. **Weight and Balance Considerations**

The 2GR-FE is heavier than the stock 4.7L, which could affect the Tacoma s handling, especially in off-road or aggressive driving scenarios. Suspension or drivetrain modifications may be needed to compensate.

6. **Potential for Reliability Issues**

While Toyota engines are durable, the 2GR-FE in high-performance applications (e.g., turbocharged) may experience wear on components like pistons, rods, or bearings if not properly supported. Regular maintenance and monitoring are critical.

7. **Warranty and Legal Concerns**

Swapping an engine voids the factory warranty, and some insurance providers may not cover the vehicle post-swap. Additionally, local laws or insurance policies may have restrictions on modified engines, particularly if the vehicle is used for commercial purposes.

8. **Learning Curve for Maintenance**

The 2GR-FE is a different engine than the stock Tacoma V8, meaning the owner may need to learn new maintenance procedures, such as oil changes, timing belt replacement (if applicable), and cooling system upkeep.

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### **Conclusion**

A 2004 Toyota Tacoma with a Go Powertrain GPT2NN89736AA (2GR-FE) engine swap can be an excellent choice for enthusiasts seeking significant power gains and customization potential. The swap offers improved performance, reliability, and compatibility with aftermarket parts, making it ideal for those who prioritize modifications and high-performance driving.

However, the project is not without challenges. The cost of the engine, transmission compatibility issues, and the need for extensive supporting upgrades (cooling, fuel, suspension) can make it a complex and expensive endeavor. Additionally, the swap requires careful planning to ensure longevity and safety.

**Recommendation:**

This swap is best suited for **experienced DIY mechanics or those with access to professional help** who are willing to invest time and money into proper upgrades. If you are looking for a **high-performance, modified Tacoma** and can handle the technical and financial demands, the 2GR-FE swap is a strong option. However, if you prefer a **simpler, more reliable, or lower-cost modification**, alternatives like a turbocharged stock 4.7L or a different engine swap (e.g., a Ford 5.4L) might be more practical.

For the best results, **source a high-quality engine**, ensure transmission compatibility, and budget for all necessary supporting modifications before proceeding. Always consult with experienced builders or mechanics to avoid common pitfalls.

Details:

Toyota Tacoma SRS Cylinder Head Engine Block OEM Used 2004.

specifications cylinderheapar:

  • for models: Srs, Tacoma
  • for makes: Toyota
  • for years: 2004
  • brand: Go Powertrain
  • mpn: Gpt2nn89736aa
  • type: Cylinder Head
  • manufacturer warranty: 1 Year
  • items included: Bolts
  • material: Aluminum
  • california prop 65 warning: This Product Can Expose You To Chemicals Including Chromium, Which Are Known To The State Of California To Cause Birth Defects Or Other Reproductive Harm.

seller cylinderheapar:

  • # reviews: 26
  • rating: 100.0%
  • city: Beattyville, Kentucky

offer cylinderheapar:

  • best offers: True
  • sold: 0
  • options: Ship-to-home
  • started: April 28, 2026
  • quantity: 1
  • availability: In Stock

general cylinderheapar:

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

shipping cylinderheapar:

  • service: FedEx Ground / FedEx Home Delivery
  • transit: 4-10 Days
  • cost: $36.31
  • class: Standard
  • type: Calculated
  • carrier: FedEx

returns cylinderheapar:

  • policy: No Returns

payments cylinderheapar:

  • credit card: Discover
  • other
  • wallet: Google-pay
for models: srs, tacoma, for makes: toyota, for years: 2004, type: cylinder head, manufacturer warranty: 1 year, items included: bolts, california prop 65 warning: this product can expose you to chemicals including chromium, which are known to the state of california to cause birth defects or other reproductive harm.,
category: auto parts > car truck parts accessories > engines engine parts > cylinder heads, material: aluminum, sku: 11992618484892782,
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