CHEVROLET 12613989 Hhr Cylinder Head 306-1958 2.4L

( Brand: Chevrolet ), ( Manufacturer Part Number: 12613989 ), ( Material: Aluminum ), ( Interchange: 306-1958 ), ( Type: Cylinder Head ), ( Manufacturer Warranty: 1 Month ), ( Id: Af33f9b5-493f-4773-b790-5ecfbfae1161 ), ( Country Of Origin: United States )

Review CHEVROLET Chevy 06-08 Cobalt 06-11 Hhr Saturn 2.4l Cylinder Head fits MALIBU VUE 2007–2012

The **Chevrolet 12613989 cylinder head** is a precision-engineered component designed exclusively for the **2.4L MultiPort Fuel Injection (MPFI) inline-four engine** found in a range of General Motors vehicles spanning from **2006 to 2012**, including the **Chevrolet Malibu (2008 2012)**, **Saturn Vue (2007 2010)**, and the **HHR (2006 2011)**. This high-performance cylinder head is crafted from **high-strength cast iron**, ensuring durability and resistance to thermal stress while maintaining optimal heat dissipation for reliable engine operation. The design incorporates **four valves per cylinder** two intake and two exhaust operated by a **single overhead camshaft (SOHC)** via a **timing chain** system, delivering efficient airflow for improved combustion and power output. The intake valves feature **shallow dish profiles** to enhance air-fuel mixture distribution, while the exhaust valves are precision-machined to optimize exhaust scavenging, reducing backpressure and supporting better engine breathing. The cylinder head is equipped with **hydraulic valve lifters**, eliminating the need for manual adjustment and ensuring smooth, consistent valve operation over the engine s lifespan. Additionally, it includes **integrated spark plug bosses** for precise ignition placement and **exhaust manifold ports** that align seamlessly with the factory exhaust system, minimizing leaks and maximizing performance. This part is a **direct replacement** for the original equipment manufacturer (OEM) cylinder head, maintaining the same **bolt pattern, deck surface, and valve guide locations**, making it an ideal choice for restoration, performance upgrades, or engine rebuilds. Whether restoring a classic Malibu to its original glory or upgrading an HHR for enhanced reliability, this cylinder head delivers the structural integrity and performance characteristics required to meet the demands of modern driving while adhering to GM s engineering standards.

**Chevrolet Malibu (2008 2012), Saturn Vue (2007 2010), and GMC/HHR (2006 2011) with a 2.4L 4-cylinder engine**

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### **Pros of Buying a Replacement 2.4L Cylinder Head**

1. **Improved Engine Performance**

- A new or rebuilt cylinder head ensures proper sealing, better airflow, and optimal combustion. This can restore power, fuel efficiency, and responsiveness if the original head was leaking or damaged.

- Fixes issues like misfires, rough idling, or loss of power caused by worn valves, springs, or leaks.

2. **Prevents Further Engine Damage**

- A failing cylinder head can lead to catastrophic engine failure if coolant leaks into cylinders (hydro-lock) or if valves break due to excessive wear. Replacing it prevents costly repairs down the line.

- Addresses common problems like **blown head gaskets**, **warped heads**, or **seized valves**.

3. **Restores Reliability**

- These engines (LHU/LHW) are known for head gasket failures, especially in the **2.4L 4-cylinder** used in the Malibu, Vue, and HHR. A new head eliminates the risk of coolant mixing with oil or fuel, preventing sludge buildup and internal corrosion.

- Extends the lifespan of the engine if other components (water pump, thermostat, timing belt) are also serviced.

4. **Better Cooling Efficiency**

- A properly sealed head prevents coolant leaks, ensuring the engine stays at optimal operating temperatures. Overheating is a major cause of engine failure in these vehicles.

- Some aftermarket heads include upgraded valve springs or seats, improving durability.

5. **Compatibility with Modifications**

- If you plan to **turbocharge, supercharge, or increase horsepower**, a new head is often necessary to handle higher pressures. Stock heads may not support forced induction without modifications.

- Some aftermarket heads feature **stainless steel valves** or **higher-flow ports**, improving performance for naturally aspirated engines as well.

6. **Cost-Effective Compared to Engine Replacement**

- Replacing just the cylinder head is significantly cheaper than a full engine swap, especially if the rest of the engine is in good condition.

- Labor costs are lower than a complete rebuild, making it a practical solution for many owners.

7. **Available Aftermarket Support**

- The **2.4L LHU/LHW engine** has a strong aftermarket presence, with **OEM replacements, remanufactured heads, and performance upgrades** widely available.

- Companies like **Crane Cams, Scat, and JE** offer high-quality heads with warranties.

8. **Potential for Increased Longevity**

- If the engine was running poorly due to head issues, replacing it can **reset the engine s health** and prevent future failures if maintenance is consistent.

---

### **Cons of Buying a Replacement 2.4L Cylinder Head**

1. **High Upfront Cost**

- A **new or remanufactured cylinder head** for these vehicles typically costs **$300 $800**, depending on whether it s OEM, aftermarket, or performance-oriented.

- **Labor costs** (for removal, machining, gasket replacement, and installation) can add **$500 $1,200**, depending on the shop and location.

- If additional work is needed (e.g., **valve job, head gasket replacement, or timing belt replacement**), costs increase significantly.

2. **Potential for Additional Repairs**

- **Warped block** (requires machining)

- **Seized valves or guides** (may need replacement)

- **Failed water pump or thermostat** (often replaced during head work)

- **Timing belt or tensioner wear** (if the belt was neglected)

- These extra repairs can **double or triple the total cost**.

3. **Skill-Dependent Installation**

- Proper installation requires **precision machining** (if the head is warped) and **correct torque specifications** to avoid leaks or damage.

- If not done correctly, **head gasket failure can recur**, leading to more costly repairs.

- Some owners may attempt DIY installation, but **misalignment or improper sealing** can cause long-term issues.

4. **Limited Performance Gains for Stock Use**

- For a **daily driver running stock**, a new head may not provide **noticeable performance improvements** unless the original was severely worn.

- If the engine was already running well before failure, the return on investment may be minimal unless you plan modifications.

5. **Availability and Lead Times**

- **OEM heads** (from GM) may be hard to find and expensive.

- **Remanufactured heads** from reputable sources (e.g., **Crane, Scat, or Summit Racing**) are more common but may have **longer wait times** depending on demand.

- Some aftermarket heads require **custom machining** for perfect fitment, adding to costs.

6. **Risk of Recurring Issues**

- If the **engine block is warped** or the **pistons/conrods are damaged**, a new head alone won t fix the problem.

- **Poor maintenance history** (e.g., no oil changes, coolant flushes) can lead to **future failures** even with a new head.

- **Head gasket failure can recur** if the block or head isn t properly inspected for warpage.

7. **Potential for Overkill on Low-Mileage Engines**

- If the engine has **low miles (under 100,000)** and was running fine, replacing the head may be **premature** unless there s a **specific issue** (e.g., coolant leaks, misfires).

- In such cases, **preventative maintenance** (oil changes, coolant flushes) might be more cost-effective.

8. **Compatibility Issues with Some Modifications**

- If the engine has been **modified with a turbo or supercharger**, a stock head may **not handle the increased pressures** without reinforcement (e.g., **stainless steel valves, upgraded springs**).

- Some aftermarket heads require **additional modifications** (e.g., **porting, polishing**), adding to expenses.

---

### **Conclusion**

Replacing a **2.4L cylinder head** in a **Chevy Malibu (08-12), Saturn Vue (07-10), or HHR (06-11)** is a **necessary repair for engines suffering from head gasket failure, warping, or internal leaks**. It is **far more cost-effective than a full engine replacement** and can **restore reliability, performance, and longevity** if done correctly.

- **The severity of the current issue** (e.g., coolant mixing with oil, misfires, overheating).

- **The engine s overall condition** (block warpage, piston damage, timing belt wear).

- **Future plans** (if you plan modifications, a performance head may be worth it).

If the engine is **otherwise healthy** and the head failure is confirmed, **replacing it is a smart investment**. If the engine has **multiple underlying issues**, a **full rebuild or replacement** may be more practical.

---

### **Recommendation**

- **Replace the cylinder head** with a **remanufactured or high-quality aftermarket unit**.

- **Inspect the block for warpage** (should be within **0.004" tolerance**).

- **Replace the head gasket, water pump, thermostat, and timing belt** (if overdue).

- **Consider a valve job** if valves are worn.

- **Use a professional mechanic** for installation to ensure proper sealing and torque.

- **Avoid replacing the head unless there s a confirmed issue.**

- **Focus on preventative maintenance** (oil changes, coolant flushes, belt inspections).

- If the head is **leaking or warped**, replace it, but **do not overpay for unnecessary upgrades**.

- **Upgrade to a performance cylinder head** (e.g., **Scat, Crane, or JE**) with **stainless steel valves and reinforced internals**.

- **Consider porting and polishing** for better airflow.

- **Ensure the block and pistons can handle increased stress** (may require **forged internals** for aggressive builds).

- **Expect to spend $800 $1,500 total** (parts labor) for a **standard replacement**.

- **Performance upgrades** can add **$500 $1,500 ** depending on modifications.

- **Get multiple quotes** from reputable shops to ensure fair pricing.

For **

Details:

CHEVROLET COBALT 09-10 2.2L, Federal emissions opt NT7. Depending on the age of vehicle and other circumstances they will rust show signs corrosion. Transmissions must be shipped to a commercial address with dock and forklift or the closest shipping terminal. Warranty period begins the day after delivery.

Most items are shipped the same-day as purchase. Buyer will need to replace the transmission oil filter, put a new pan gasket on, flush and add manufacturer specific fluids. Buyer pays return shipping if wrong color ordered. Axle seals, front and drive shaft seals will also need to be replaced.

Transmission lines will need flushed, along with the transmission oil cooler needs replaced if equipped, this to be done so contaminants from bad not ruin your replacement. Model: CHEVY MALIBU. Quick shipping. CHEVROLET COBALT 06-08 2.4L.

In some cases the Transmission Control Computer module is internal and incorporated with valve body, which may require body to be replaced. Some external sensors or solenoids may need to be replaced. Picture in the listing may not be of actual item sold; it a stock picture only. CHEVROLET HHR 09-11 2.2L.

Engines must be shipped to a commercial address with dock and forklift or the closest shipping terminal. Transfer cases will not be included with transmissions from 4x4 or All Wheel Drive vehicles. Free shipping, if offered, applies only to commercial addresses with proper equipment dock and forklift unload.

part #: 12613989 prices

• $349.99-$529.00

specifications cylinderheapar:

• for models: Malibu, Vue
• for makes: Chevy, Saturn, Chevrolet
• for years: 2007-2012
• brand: Chevrolet
• mpn: 12613989
• material: Aluminum
• interchange: 306-1958
• type: Cylinder Head
• manufacturer warranty: 1 Month
• id: Af33f9b5-493f-4773-b790-5ecfbfae1161
• country of origin: United States

returns cylinderheapar:

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

payments cylinderheapar:

• other
• credit card: Diners-club
• wallet: Apple-pay

seller cylinderheapar:

• # reviews: 22511
• rating: 99.5%
• city: Erie, Pennsylvania

shipping cylinderheapar:

• type: Fixed
• carrier: USPS
• class: Standard
• cost: $0.00
• service: USPS Ground Advantage
• transit: 2-6 Days

general cylinderheapar:

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

offer cylinderheapar:

• sold: 0
• availability: In Stock
• best offers: True
• quantity: 1
• started: February 17, 2026
• options: Ship-to-home

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