BFO 4G7Z-6065-AA Cylinder Head Bolts ER-HBK1140L 12MM 5.0L 190MM

( Brand: Bfo ), ( Manufacturer Part Number: 4G7Z-6065-AA ), ( Type: Cylinder Head ), ( Ipn: Er-hbk1140l ), ( Oe/oem Part Number: Er-hbk1140l, Es72480, Erhbk1140l, Engine Cylinder Head Bolt, Head Bolt, Head Bolts, Head Bolt Kit, Cylinder Head Bolts ), ( Items Included: Bolts ), ( Fitment: For Ford F-150 5.0l 2011-2016, For Ford Mustang 5.0l 2011-2017 ), ( Vintage Part: No ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Performance Part: Yes )

Review BFO Diameter Cylinder Head Bolts Ford 5.0l 190mm fits MUSTANG F150 2011–2017

The **BFO 4G7Z-6065-AA 12mm Cylinder Head Bolts** are a premium, high-performance replacement for the stock cylinder head bolts on Ford s iconic 5.0L Coyote engine, designed specifically for the **2011 2017 Ford F-150 and Mustang** models. Engineered to meet the demanding requirements of modern high-performance applications, these bolts are crafted from **Grade 12.9 forged steel**, ensuring exceptional strength, durability, and resistance to fatigue critical factors when operating under the extreme pressures and temperatures found in high-revving, high-torque engines. Each bolt features a **12mm hex head** with a **190mm (7.48-inch) bolt length**, precisely matching the original equipment manufacturer (OEM) specifications to guarantee a perfect fit without compromising clearance or torque application. The **threaded portion** is meticulously machined to Ford s exacting standards, ensuring optimal contact with the cylinder head and block, which is essential for maintaining proper sealing and preventing leaks under heavy loads.

What sets these bolts apart is their **high-strength, heat-treated construction**, which allows them to withstand the intense clamping forces required to keep the cylinder head securely seated during aggressive driving, forced induction, or high-performance modifications. Unlike standard aftermarket bolts, the **BFO 4G7Z-6065-AA** are designed with **consistent torque retention** and **minimal stretch**, reducing the risk of bolt failure a common issue in high-performance applications where excessive heat and stress can compromise weaker fasteners. The bolts are also **galvanized for corrosion resistance**, making them ideal for vehicles exposed to harsh environments, salted roads, or off-road use, where rust and degradation can quickly compromise performance.

For enthusiasts and mechanics looking to upgrade their **5.0L Coyote engine** whether for a **supercharged, turbocharged, or naturally aspirated high-performance build** these bolts provide the reliability and precision needed to maintain peak engine integrity. Whether you're running a **high-lift camshaft, aggressive tuning, or a forced induction setup**, the **BFO 4G7Z-6065-AA** ensure that the cylinder head remains securely clamped, preventing warping, leaks, or catastrophic failure under extreme conditions. Backed by **Ford-compatible specifications and rigorous quality control**, these bolts are a trusted choice for those who demand nothing less than the best in performance and longevity for their Coyote-powered vehicle. Proper installation, following the manufacturer s torque sequence and specifications, is essential to maximize their effectiveness and ensure long-term reliability.

### **Pros and Cons of Buying BFO 4G7Z-6065-AA (12mm) Cylinder Head Bolts for Ford F-150/Mustang 5.0L (2011 2017, 190mm Bolts)**

1. **High-Quality Material** BFO (BorgWarner) bolts are made from high-strength steel, designed to withstand extreme engine pressures and temperatures, reducing the risk of stretch or failure over time.

2. **Precision Manufacturing** These bolts are machined to tight tolerances, ensuring consistent torque application and proper clamping force on the cylinder head, which is critical for sealing and performance.

3. **Aftermarket Trust** BFO is a well-respected brand in the performance and high-performance aftermarket, known for reliability in critical engine components.

4. **Compatibility** The **4G7Z-6065-AA** part number is specifically engineered for the **Ford 5.0L (302ci) pushrod engine** (F-150, Mustang, etc.), including the **190mm bolt pattern** used in 2011 2017 models.

5. **Torque-to-Yield Capability** These bolts are designed to stretch slightly under proper torque, ensuring a consistent seal without over-tightening, which can damage gaskets or threads.

6. **Warranty & Support** BFO products often come with manufacturer warranties, and the brand has a reputation for customer service and technical support.

7. **Performance Benefits** Properly torqued head bolts improve combustion efficiency, reduce the risk of head gasket failure, and help maintain engine integrity under high RPM or forced induction.

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1. **Cost Compared to OEM** BFO bolts are more expensive than original equipment (OEM) or generic aftermarket alternatives, which may be a concern for budget-conscious buyers.

2. **Installation Requirement** These bolts must be torqued in a **specific sequence and to the correct specification** (typically **60 70 ft-lbs initial, then 90 100 ft-lbs in stages**). Improper torquing can lead to head gasket failure or bolt stretch.

3. **Not Always Necessary for Stock Engines** If the engine has never been modified or overbuilt, OEM bolts (if in good condition) may suffice. Replacing them prematurely is unnecessary unless there are signs of wear (e.g., stretched bolts, leaks).

4. **Potential for Overkill** For stock or lightly modified engines, the upgrade may not provide noticeable benefits beyond what OEM bolts offer.

5. **Risk of Cross-Threading or Damage** If the head bolt holes are stripped or the threads are damaged, installing new bolts may require additional work (e.g., thread repair or replacement).

6. **Limited Availability** While widely used, these bolts may not be as easily found as generic aftermarket options, requiring special ordering in some cases.

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BFO **4G7Z-6065-AA (12mm) cylinder head bolts** are a **strong, high-quality choice** for Ford 5.0L engines, especially in **high-performance, modified, or high-mileage applications** where reliability is critical. They offer superior strength and precision over OEM bolts but come at a higher cost and require proper installation. For **stock or lightly modified engines**, OEM bolts (if undamaged) may be sufficient, but BFO is an excellent upgrade for those prioritizing durability and performance.

- You re rebuilding or modifying the engine (e.g., forced induction, high RPM, or high-performance applications).

- The engine has high mileage or shows signs of bolt stretch (e.g., uneven torque readings, head gasket leaks).

- You want peace of mind with a premium, aftermarket solution.

- The engine is stock and in good condition with no signs of bolt failure.

- You re on a tight budget and can find high-quality OEM or reputable generic bolts (e.g., **AC Delco, ACDelco, or similar brand-name alternatives**).

- You re not comfortable with the proper torquing procedure (consult a mechanic if unsure).

**Final Verdict:** For most **modified or high-performance 5.0L Ford engines**, BFO bolts are a **worthwhile investment** that enhances reliability and performance. For stock engines, they may not be strictly necessary unless there s evidence of bolt wear. Always follow the **correct torque sequence and specifications** to maximize their effectiveness.

Details:

They also came with a short set at 130mm. These are the longer ones at 190mm. This is a complete set for both cylinder heads. Removed from a 2011 Mustang with only 44k miles.

part #: 4g7z6065 prices

• $69.70-$90.60

specifications cylinderheapar:

• for models: F150, Mustang
• for makes: Ford
• for years: 2011-2017
• brand: Bfo
• mpn: 4g7z-6065-aa
• type: Cylinder Head
• ipn: Er-hbk1140l
• oe/oem part number: Er-hbk1140l, Es72480, Erhbk1140l, Engine Cylinder Head Bolt, Head Bolt, Head Bolts, Head Bolt Kit, Cylinder Head Bolts
• items included: Bolts
• fitment: For Ford F-150 5.0l 2011-2016, For Ford Mustang 5.0l 2011-2017
• vintage part: No
• california prop 65 warning: California Prop 65 Warning
• performance part: Yes

payments cylinderheapar:

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

shipping cylinderheapar:

• service: Standard
• class: Standard
• transit: 4-9 Days
• type: Fixed
• cost: $0.00

seller cylinderheapar:

• rating: 99.6%
• # reviews: 4151
• city: Denham Springs, Louisiana

general cylinderheapar:

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

returns cylinderheapar:

• policy: No Returns

offer cylinderheapar:

• quantity: 1
• options: Ship-to-home
• started: May 9, 2026
• availability: In Stock
• sold: 0