GENUINE GM PARTS 25195269 Engine Cylinder Head 195491214569

( Brand: Genuine Gm Parts ), ( Manufacturer Part Number: 25195269 ), ( Manufacturer Warranty: 1 Year ), ( Core Charge: 75.00 Which Is Included In The Total Price ), ( Type: Engine Cylinder Head ), ( UPC: 195491214569 )

Review GENUINE GM PARTS Engine Cylinder Head

The **GM 25195269 Engine Cylinder Head** is a precision-engineered component designed specifically for high-performance and durability in General Motors (GM) small-block V8 and LS-series engines, particularly those found in classic muscle cars, trucks, and modern performance applications. Crafted from high-quality **cast iron** or **aluminum alloy** (depending on the engine variant), this cylinder head is meticulously machined to ensure optimal combustion efficiency, thermal management, and structural integrity. Its robust design features **four valves per cylinder** (intake and exhaust) arranged in a **pent-roof configuration**, allowing for improved airflow and better scavenging of exhaust gases, which enhances engine breathing and overall power output. The head incorporates **high-flow ports** that are carefully contoured to maximize velocity and minimize turbulence, ensuring a more efficient intake and exhaust cycle. Critical components such as the **valve seats, guides, and springs** are engineered to withstand extreme temperatures and high-pressure conditions, reducing the risk of pre-ignition or valve float, even under aggressive driving or racing conditions. The **spark plug boss** is strategically positioned for optimal ignition timing, while the **camshaft lobes** are designed to work seamlessly with aftermarket or stock camshafts, offering flexibility for tuning and performance modifications. Additionally, the head is equipped with **high-quality gaskets** and **sealing surfaces** that prevent oil leaks and ensure a tight compression seal, which is essential for maintaining peak engine performance and longevity. Whether installed in a restored **Chevrolet Camaro, Ford Mustang, or a modern LS-based truck**, this cylinder head delivers a balance of reliability and power, making it a sought-after upgrade for enthusiasts and professional mechanics alike. Its compatibility with a wide range of **GM small-block and LS engines** including those in applications like the **L98, LT1, or LS3** ensures broad applicability across different vehicle models and performance levels. For those seeking to push their engine s limits, this cylinder head serves as a solid foundation for further modifications, such as **high-performance camshafts, larger valves, or forced induction upgrades**, all while maintaining the integrity of the original engine architecture.

### **Pros and Cons of Buying a GM 25195269 Engine Cylinder Head**

The **GM 25195269** is a cylinder head used in various General Motors engines, including the **LS1, LS2, and LS3** series, as well as some **L96** and **L76** applications. Below is a detailed breakdown of its advantages and disadvantages.

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### **Pros of Buying a GM 25195269 Cylinder Head**

1. **High Performance Potential**

- The **25195269** is designed for high-performance applications, particularly in **LS-series engines** (e.g., LS1, LS2, LS3).

- It features **larger intake and exhaust ports** compared to stock heads, improving airflow and power output.

- Commonly used in **high-compression, forced-induction (turbo/supercharged), and high-RPM applications**.

2. **Durability and Strength**

- Cast from **high-quality aluminum alloy**, it is designed to handle **high cylinder pressures** without warping.

- Reinforced **valve springs and retainers** help prevent valve float at high RPM.

- Many versions include **stiffer valve springs** for better durability under aggressive driving conditions.

3. **Compatibility with Aftermarket Upgrades**

- Works well with **high-flow intake manifolds, performance camshafts, and forced induction systems**.

- Often paired with **aftermarket valve springs, retainers, and rocker arms** for even better performance.

- Used in **race engines, street rods, and high-performance street cars**.

4. **Widely Available Parts & Support**

- Since these heads are used in **popular GM engines**, replacement parts (valves, springs, seals) are **easily accessible**.

- A large **aftermarket community** provides tuning guides, porting services, and performance modifications.

- Many **OEM and aftermarket manufacturers** produce variations, ensuring availability.

5. **Cost-Effective for Performance Builds**

- While not cheap, they are **more affordable than fully custom heads** for high-performance applications.

- Often **less expensive than OEM high-performance heads** (e.g., LS7 heads) while still delivering strong performance.

6. **Proven Reliability in Racing & Street Use**

- Used in **NASCAR, NHRA, and drag racing** applications, proving their durability in extreme conditions.

- Many **street cars** running these heads achieve **high horsepower (400 HP naturally aspirated, 600 HP with forced induction)** without major issues.

7. **Easy to Modify & Port**

- The **port geometry is already optimized** for better airflow, making it easier to **port and polish** for additional gains.

- Many **performance shops** specialize in modifying these heads for **maximum airflow**.

---

### **Cons of Buying a GM 25195269 Cylinder Head**

1. **Higher Upfront Cost**

- Priced **significantly above stock GM cylinder heads** (often **$500 $1,200 per head**, depending on version and source).

- Requires **additional modifications** (valve springs, retainers, seals, gaskets), increasing total cost.

2. **Requires Proper Installation & Tuning**

- **Not a "bolt-on" upgrade** poor installation (e.g., incorrect torque, improper gasket seating) can lead to **leaks or warping**.

- **ECU tuning is often necessary** to prevent **knocking or detonation** due to higher compression and power output.

- **Valve spring pressure must be matched** to camshaft selection to avoid valve float.

3. **Potential for Warping**

- Like all aluminum heads, they can **warp under extreme heat or improper cooling**.

- **Proper head studs, gaskets, and cooling** are essential to prevent this issue.

- Some users report **warping in high-RPM, forced-induction applications** if not properly managed.

4. **Limited Stock Compatibility**

- **Not a direct drop-in replacement** for all GM engines **block modifications (deck height, bolt pattern) may be required**.

- Some applications (e.g., **pre-LS1 engines**) may need **custom spacers or adapters**.

- **Not suitable for low-compression, stock-power builds** stock heads may be sufficient and cheaper.

5. **Maintenance & Longevity Concerns**

- **Valves and valve seats wear faster** under high-performance conditions, requiring **more frequent inspections**.

- **Exhaust manifold leaks** can occur if gaskets fail, leading to **coolant or oil contamination**.

- **Threaded ports** (if present) may require **sealing or reaming** to prevent leaks.

6. **Aftermarket Dependency for Best Performance**

- To **fully realize performance potential**, additional aftermarket parts (e.g., **high-flow valves, custom springs, ported manifolds**) are often needed.

- **DIY porting and machining** may be required for **maximum airflow**, adding labor costs.

7. **Potential for Overbuilding**

- If not properly matched with **fueling, ignition, and cooling**, these heads can **lead to engine damage** (knocking, valve float, detonation).

- **Requires a well-rounded performance build** just swapping heads without supporting modifications can **reduce reliability**.

---

### **Conclusion & Recommendation**

The **GM 25195269 cylinder head** is a **strong choice for high-performance applications**, particularly in **LS-series engines** where **power, reliability, and durability** are priorities. It excels in **naturally aspirated and forced-induction builds**, offering **better airflow and strength** than stock heads. However, it is **not a simple upgrade** it demands **proper installation, tuning, and supporting modifications** to avoid issues.

#### **Who Should Buy It?**

**High-performance street cars** (400 HP NA, 600 HP forced induction)

**Race engines** (drag racing, circle track, NHRA)

**Builders looking for a balance of cost and performance** (cheaper than LS7 heads, more capable than stock)

**Those willing to invest in supporting modifications** (valve springs, tuning, cooling)

#### **Who Should Avoid It?**

**Stock or low-power builds** (stock heads may suffice)

**DIYers without mechanical experience** (requires proper installation)

**Budget-conscious buyers** (expensive upfront, ongoing maintenance costs)

**Applications without proper fueling/ignition tuning**

If you are **building a high-performance LS engine** (especially with **forced induction or aggressive camshafts**), the **GM 25195269 cylinder head is an excellent choice** provided you:

- **Use high-quality gaskets, head studs, and proper torque specs.**

- **Invest in aftermarket valve springs and retainers** (if needed).

- **Have your engine tuned** to match the increased power.

- **Ensure adequate cooling** to prevent warping.

For **stock or mild performance builds**, a **stock or mildly ported head** may be a **more cost-effective solution**. However, for **serious power gains**, the **25195269 is one of the best aftermarket options** available for GM LS engines.

Details:

If you do, our experts will hand-verify compatibility before shipping. 25195269: Genuine GM Parts: Engine Cylinder Head. Changed My Mind. This part fits vehicles made in the fol lowing years 2013 ,2014,2015.

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part #: 25195269 prices

• $525.00-$1079.95

specifications cylinderheapar:

• brand: Genuine Gm Parts
• mpn: 25195269
• manufacturer warranty: 1 Year
• core charge: 75.00 Which Is Included In The Total Price
• type: Engine Cylinder Head
• upc: 195491214569

shipping cylinderheapar:

• class: Standard
• type: Fixed
• cost: $0.00
• transit: 19-29 Days
• service: Standard

general cylinderheapar:

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

returns cylinderheapar:

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

seller cylinderheapar:

• city: Garland, Texas
• rating: 99.2%
• # reviews: 19119

offer cylinderheapar:

• sold: 0
• options: Ship-to-home
• availability: In Stock
• quantity: 5
• started: May 16, 2026

payments cylinderheapar:

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

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