ALFA ROMEO 246F78-11 Engine Head Vvt

( Brand: Alfa Romeo ), ( Manufacturer Part Number: 246F78-11 ), ( Part Type: Engine Head ), ( Country Of Origin: Italy ), ( Performance Part: No )

Review ALFA ROMEO Engine Head Pre Vvt

The **Alfa Romeo 246F78-11 Engine Head (VVT)** represents the pinnacle of Italian engineering precision, meticulously crafted to deliver the exhilarating performance and refined character that Alfa Romeo is renowned for. This high-performance cylinder head is designed for the iconic **1.8L Twin Spark (TTS) engine**, a legendary powerplant that has graced some of the most celebrated Alfa Romeo models, including the **Giulia Quadrifoglio, 4C, and Spider**. Engineered with an emphasis on both power and efficiency, the **246F78-11 head** features a **dual overhead camshaft (DOHC) configuration**, each driving two valves per cylinder one intake and one exhaust via a **Twin Spark ignition system**, ensuring optimal combustion and throttle response. The **Variable Valve Timing (VVT)** technology integrated into the intake camshaft allows for dynamic adjustments in valve timing, enhancing low-end torque while maintaining high-revving agility, a hallmark of Alfa s driving dynamics.

Constructed from **high-grade cast aluminum**, the head is designed for durability and thermal efficiency, with **precision-machined combustion chambers** that optimize air-fuel mixture distribution and combustion efficiency. The **intake ports** are sculpted to promote smooth airflow, reducing turbulence and improving volumetric efficiency, while the **exhaust ports** are engineered to maximize scavenging, ensuring a clean and efficient exhaust pulse. The **VVT mechanism** itself is a marvel of engineering, utilizing a **hydraulic actuator** controlled by engine oil pressure to adjust the camshaft s phase, which in turn optimizes power delivery across the rev range. This system not only enhances performance but also contributes to a more linear and engaging driving experience, characteristic of Alfa s sporty heritage.

For enthusiasts seeking to restore or upgrade their Alfa Romeo s engine, the **246F78-11 head** is a critical component that demands meticulous attention to installation. It is compatible with **1.8L Twin Spark engines** found in models from the **2007 2016 Giulia, 2010 2016 4C, and 2013 2016 Spider**, making it a versatile choice for both classic and modern iterations of these beloved vehicles. When paired with the correct **intake manifold, camshafts, and ignition components**, this head unlocks the full potential of the Twin Spark engine, delivering a **smooth yet spirited** power delivery that is both thrilling and refined. Whether used in a restoration project or as part of a performance modification, the **246F78-11 VVT cylinder head** embodies the perfect blend of Italian passion and mechanical excellence, ensuring that every rev of the engine carries the unmistakable soul of Alfa Romeo.

### **Pros and Cons of Buying an Alfa Romeo 246F78-11 Engine Head (VVT) with Twin Scroll Turbo**

The **Alfa Romeo 246F78-11** engine head, commonly found in the **159, GT, and Giulia (2007 2016)**, is a high-performance component known for its twin-scroll turbocharged setup and variable valve timing (VVT). Below is a detailed breakdown of its advantages and drawbacks, followed by a conclusion and recommendation.

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### **Pros**

1. **Performance Gains**

- The **twin-scroll turbo** provides better exhaust gas distribution, improving low-end torque and mid-range power compared to a single-scroll setup. This makes the engine more responsive in daily driving and spirited applications.

- When paired with a **high-flow intake, upgraded intercooler, or exhaust**, the stock head can deliver noticeable power increases (often **50 100 HP** with minor mods).

- The **VVT system** enhances efficiency and throttle response, especially at part-throttle conditions, improving drivability.

2. **Stock Reliability (With Proper Maintenance)**

- The **246F78-11** is a robust aluminum head with **four valves per cylinder**, designed for high RPM and turbocharging. With **regular oil changes, valve adjustment, and cooling system maintenance**, it can last **150,000 200,000 miles** without major issues.

- The **hydraulic lifters** (in non-VVT versions) or **solid lifters (in VVT models)** require periodic adjustment (every **60,000 100,000 miles**), but this is straightforward compared to some other European engines.

3. **Aftermarket Support & Mod Potential**

- The engine is **widely modified** in the Alfa community, with aftermarket parts like **custom camshafts, forged internals, and upgraded turbos** available.

- **Head porting and polishing** can improve airflow, while **upgraded fuel injectors and ECU tuning** (e.g., **Megatune, Haltech, or Apexi**) allow for significant power gains.

- The **twin-scroll turbo** is a selling point for tuners, as it naturally pairs well with **forced induction builds**.

4. **Better Than Stock in Many Cases**

- If your engine is **stock or lightly modified**, upgrading to a **new or reconditioned 246F78-11 head** (especially with **VVT**) can restore performance lost due to carbon buildup, worn valves, or failed VVT solenoids.

- The **VVT version** (found in later models) offers **better fuel economy and smoother operation** compared to non-VVT heads.

5. **Cost-Effective Upgrade**

- A **new or reconditioned 246F78-11 head** typically costs **$800 $1,500** (depending on condition and whether VVT is included).

- Compared to a **full engine swap** (which can exceed **$5,000 $10,000**), this is a **budget-friendly performance upgrade**.

- **DIY-friendly** if you have basic mechanical skills, installing a new head is a **weekend project** (though gasket replacement and valve adjustment require precision).

6. **Compatibility with Other Mods**

- **Upgraded turbos** (e.g., **Garrett GTX, BorgWarner EFR**)

- **High-flow exhausts** (e.g., **Borla, MagnaFlow**)

- **Cold air intakes** (e.g., **K&N, Injen**)

- **ECU tunes** (e.g., **Megatune, Haltech**)

- Many **159 and Giulia owners** use this head as a **base for forced induction builds**.

---

### **Cons**

1. **Complexity & Maintenance Requirements**

- The **VVT system** (if present) requires **regular servicing** **VVT solenoids, oil control valves, and lifters** can fail if neglected, leading to **rough idle, misfires, or loss of power**.

- **Non-VVT versions** (common in early 159s) have **hydraulic lifters** that must be adjusted every **60,000 100,000 miles** to prevent **valve float and performance loss**.

- **Carbon buildup** on valves and intake ports is common in turbocharged engines, requiring **periodic cleaning** (every **50,000 70,000 miles**).

2. **Potential for Leaks & Gasket Failures**

- The **head gasket** (especially in older or high-mileage examples) can **leak coolant or oil**, leading to **overheating or oil contamination**.

- **Valve cover gaskets** and **oil filter housing gaskets** are also common failure points.

- **Reconditioned heads** may still have **hidden cracks or warping** if not properly inspected.

3. **Limited Stock Power (Without Mods)**

- The **stock 246F78-11 (non-turbo)** produces ** 200 220 HP**, while the **twin-scroll turbo version** (e.g., in the **159 3.2L**) makes ** 260 280 HP**.

- If you **don t plan to modify**, the gains from a new head may not be **dramatic enough** to justify the cost.

- **Non-VVT heads** (common in early 159s) are **less efficient** and may **lose power faster** than VVT-equipped ones.

4. **Risk of Buying a Lemon**

- **Used heads** can have **hidden damage** (e.g., **warped deck, cracked combustion chambers, or worn valve seats**).

- **No VVT?** Some sellers misrepresent **non-VVT heads as VVT** always **verify the part number and confirm VVT solenoid presence**.

- **Oil leaks** from **valve cover gaskets or oil filter housing** are common in high-mileage examples.

5. **Installation Challenges**

- Requires **precision** **valve adjustment, gasket sealing, and torque specifications** must be followed to avoid **leaks or performance issues**.

- **DIY installation** is possible but **error-prone** many owners opt for a **mechanic** to ensure proper sealing.

- **Threaded fasteners** (e.g., **spark plug holes, oil filter studs**) can **strip or break** if overtightened.

6. **Not a "Set-and-Forget" Upgrade**

- Unlike a **simple intake or exhaust swap**, a **new head requires ongoing maintenance** (oil changes, valve adjustment, VVT servicing).

- **Ignoring maintenance** can lead to **expensive repairs** (e.g., **warped head, failed VVT solenoids, or exhaust manifold cracks**).

7. **Limited Longevity Without Forced Induction**

- The **stock turbo (Garrett GT2450)** is **notoriously weak** and often **blows at 15 20 PSI**.

- Without **upgraded turbos, fueling, and cooling**, the head may **struggle with sustained high loads**, leading to **premature wear**.

- **Forced induction builds** (e.g., **2.0L twin-scroll with 300 HP**) require **upgraded internals** (e.g., **forged crank, stronger rods, upgraded turbos**) to prevent failure.

---

### **Conclusion**

The **Alfa Romeo 246F78-11 engine head (VVT twin-scroll)** is a **solid performance upgrade** for **159, GT, and Giulia owners**, especially those looking to **restore stock power or build a forced induction project**. It offers **noticeable gains in torque and responsiveness**, is **cost-effective compared to a full engine swap**, and has **strong aftermarket support**.

However, it is **not a "plug-and-play" solution** it requires **regular maintenance, proper installation, and (ideally) future modifications** to fully realize its potential. If you **neglect maintenance**, it can become a **source of headaches** (leaks, VVT failures, carbon buildup).

For **stock or lightly modified cars**, a **new or reconditioned head (with VVT) is a worthwhile investment** if you plan to **keep the engine in good condition**. For **high-power builds**, it serves as an **excellent foundation** but will need **upgraded turbos, fueling, and cooling** to handle serious power levels.

---

### **Recommendation**

- **Buy a new or reconditioned 246F78-11 with VVT** (preferably from a **trusted supplier** like **Alfa Romeo Performance Parts, eBay (verified sellers), or a local Alfa specialist**).

- **Budget:** **$80

Details:

part #: 246f7811 price

• $75.00

specifications cylinderheapar:

• for makes: Alfa
• brand: Alfa Romeo
• mpn: 246f78-11
• part type: Engine Head
• country of origin: Italy
• performance part: No

returns cylinderheapar:

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

seller cylinderheapar:

• city: Rio Rancho, New Mexico
• # reviews: 816
• rating: 100.0%

offer cylinderheapar:

• options: Ship-to-home
• best offers: True
• availability: In Stock
• quantity: 1
• sold: 0
• started: May 25, 2026

payments cylinderheapar:

• other
• wallet: Apple-pay
• credit card: Visa

shipping cylinderheapar:

• class: Standard, Economy
• type: Calculated
• service: USPS Ground Advantage, FedEx Ground Economy
• transit: 4-8 Days
• cost: $54.96
• carrier: USPS, FedEx

general cylinderheapar:

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

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