1. Cylinder Heads & Parts Engines Components For Sale
  2. sku: 11876083160818793
  3. FORD RF948M6090R70

FORD Completely Cylinder Head 2.0 Head. RF-948M-6090-R70

fits make: Ford.

Rf-948m-6090-r70 Ford Rf948m6090r70 Completely Remanufactured 2.0 Cylinder Head. Casting#

( Manufacturer Part Number: RF948M6090R70 ), ( Type: Cylinder Head ), ( Oe/oem Part Number: Ac354c2 ), ( Items Included: 1 Cylinder Head With Valves And Springs ), ( Material: Aluminum ), ( Finish: Remanufactured ), ( Country Of Origin: United States )

Review FORD Completely Remanufactured 2.0 Cylinder Head. Casting#

The **Ford RF948M6090R70 (2.0L Cylinder Head)** is a precision-engineered component designed exclusively for Ford s high-performance and high-mileage applications, ensuring optimal combustion efficiency, durability, and reliability in engines such as the iconic 2.0L inline-four found in vehicles like the Ford Escort RS Cosworth, Ford Focus ST, and other performance-oriented models. This cylinder head is a critical part of the engine s combustion system, featuring a robust **cast aluminum construction** that balances weight savings with structural integrity, allowing for superior heat dissipation while maintaining strength under high-pressure conditions. The head is meticulously machined to exacting tolerances, incorporating **four individual intake and exhaust valves per cylinder** arranged in a classic pushrod layout, which enhances airflow dynamics for improved horsepower and torque output. The valve seats are precision-ground to ensure a tight seal, minimizing blow-by and maximizing combustion efficiency, while the **intake ports** are contoured to optimize airflow velocity, reducing turbulence and improving throttle response. The exhaust ports are designed to efficiently expel combustion gases, contributing to better scavenging and overall engine performance.

This cylinder head is equipped with **Ford s proprietary valve train components**, including hardened valve stems and high-quality valve springs, which are engineered to withstand the stresses of high-revving applications without premature wear or failure. The **spark plug bosses** are strategically positioned for optimal ignition placement, ensuring even combustion across all cylinders, while the **camshaft lobes** are precision-machined to deliver the correct lift and duration for the intended engine application, whether for street driving, track use, or high-mileage reliability. The head is also designed with **integrated cooling passages** that enhance heat transfer, preventing overheating and extending the lifespan of critical components like the valves, seats, and combustion chamber surfaces. For added durability, the cylinder head features **reinforced rocker arm mounts** and **high-strength fasteners**, including **torque-to-yield bolts**, which ensure proper clamping force and prevent warping under thermal cycling.

Whether replacing a worn or damaged original component or upgrading an engine for enhanced performance, the **Ford RF948M6090R70 cylinder head** is a direct-fit, high-quality replacement that adheres to Ford s original specifications. It is compatible with modern fuel injection systems and electronic engine management units, making it an ideal choice for both restoration projects and performance modifications. Built to withstand the demands of high-performance driving, this cylinder head is a testament to Ford s engineering legacy, offering a perfect blend of reliability, performance, and longevity for enthusiasts seeking to restore or enhance their 2.0L inline-four-powered vehicles.

### **Pros and Cons of buying a Ford RF948M6090R70 (2.0L Cylinder Head)**

#### **Pros:**

1. **Compatibility and Fitment**

The RF948M6090R70 is a direct replacement for the original Ford 2.0L cylinder head used in engines like the **Duratec HE (Zetec) and Duratec HP (Puma)** found in vehicles such as the **Ford Focus (2000 2007), Ford Fusion (2002 2007), Mazda Tribute, and Mercury Milan**. Since it is an OEM (Original Equipment Manufacturer) or high-quality aftermarket part, it ensures proper fitment without modifications.

2. **Performance and Reliability**

- The **2.0L Duratec engines** are known for their durability, especially when properly maintained.

- A well-matched cylinder head (like this one) helps maintain **optimal compression, airflow, and combustion efficiency**, which can improve engine performance.

- If the original head was damaged (warped, cracked, or worn), replacing it with a new or reconditioned unit can **restore power output** and prevent further engine issues.

3. **Cost-Effective Replacement**

- Compared to a full engine rebuild or replacement, swapping out just the cylinder head is **significantly cheaper**.

- Prices vary, but this part is generally **more affordable than a complete engine swap**, especially if buying from a reputable supplier.

4. **Improved Engine Longevity**

- If the head was failing (due to **valve seat wear, exhaust port erosion, or warping**), replacing it prevents **catastrophic engine failure** (e.g., blown head gaskets, cracked blocks).

- A new head with **proper valve seals, springs, and guides** can extend the engine s lifespan.

5. **Aftermarket and Tuning Potential**

- Some high-performance cylinder heads (even OEM-style ones) are designed to **handle slight modifications** (e.g., mild turbocharging, porting, or polishing).

- If paired with a **high-flow intake manifold and tuned ECU**, it can support **better airflow and horsepower gains** (though stock heads have limits).

6. **Warranty and Quality (If Purchased from a Reputable Source)**

- Some sellers offer **warranties on new or reconditioned heads**, ensuring long-term reliability.

- If buying from a **Ford dealer or a trusted aftermarket supplier**, you can expect **consistent quality** with proper machining and heat treatment.

---

#### **Cons:**

1. **Potential for Counterfeit or Low-Quality Parts**

- The aftermarket is flooded with **fake or substandard cylinder heads**, especially from **unverified sellers on eBay, Amazon, or Alibaba**.

- **Risks include:**

- **Poor machining** (uneven valve seats, improper porting).

- **Weak materials** (casting defects, improper heat treatment leading to warping or cracking).

- **Incorrect thread sizes or bolt patterns**, causing leaks or damage.

- **Solution:** Only purchase from **verified suppliers** (e.g., **RockAuto, Summit Racing, local Ford/Mazda dealers, or trusted eBay sellers with positive reviews**).

2. **Installation Complexity**

- Replacing a cylinder head requires **mechanical skill, proper tools, and attention to detail**.

- **Common challenges:**

- **Warped head or block** (must be checked with a **straightedge and feeler gauge**).

- **Incorrect torque specifications** (over-tightening bolts can crack the head).

- **Gasket replacement** (must use a **new head gasket** to prevent leaks).

- **Valve lash adjustment** (if using mechanical lifters).

- **If not done correctly**, it can lead to **engine damage, oil leaks, or poor performance**.

3. **Additional Costs Beyond the Head**

- Simply buying the head is not enough; you may need:

- **New head gasket(s)** (Ford part # **1430500** or equivalent).

- **New valve seals and oil control rings** (if recommended by the engine rebuild manual).

- **Torque wrench, gasket scraper, and proper lubricants** (anti-seize compound for bolts).

- **Labor costs** (if not doing it yourself).

- **Total cost can easily exceed $300 $600** depending on labor and additional parts.

4. **Limited Performance Gains (Stock Configuration)**

- The **stock 2.0L Duratec head is not designed for high-performance applications** (e.g., forced induction).

- **Modifications like porting or polishing require expertise** and may not be worth it for mild street use.

- **Turbocharging a stock head can lead to premature failure** due to **low compression and poor heat dissipation**.

5. **Potential for Hidden Engine Issues**

- If the engine has **other problems** (e.g., **rod knock, worn bearings, or a failing camshaft**), replacing just the head **won t fix them**.

- A **full engine inspection** (or at least a **compression test**) is recommended before purchasing the head.

6. **Availability and Lead Times**

- **New OEM heads** may be **discontinued or hard to find** (Ford no longer produces them for older models).

- **Reconditioned heads** can take **weeks to arrive**, delaying repairs.

- **Used heads** may be available but come with **unknown service history** (risk of hidden damage).

---

### **Conclusion**

The **Ford RF948M6090R70 (2.0L cylinder head)** is a **practical and cost-effective solution** for restoring or maintaining a **Duratec HE/HP engine** when the original head is failing. It offers **reliability, proper fitment, and performance benefits** if installed correctly. However, **quality control, installation challenges, and additional costs** must be carefully considered.

**If you proceed with purchasing this part:**

**Buy from a trusted supplier** (avoid counterfeits).

**Inspect the engine thoroughly** before installation (check for warping, leaks, or other issues).

**Follow proper installation procedures** (torque specs, new gaskets, valve adjustments).

**Budget for additional parts** (gaskets, seals, tools).

**Consider professional installation** if unsure about DIY repairs.

**If you are unsure about the engine s condition or lack mechanical experience**, it may be worth **consulting a mechanic** before committing to the purchase.

---

### **Final Recommendation**

**Buy the RF948M6090R70 if:**

- Your **2.0L Duratec engine is running poorly** (misfires, loss of power, overheating).

- The **original head is cracked, warped, or leaking**.

- You **have the skills or access to a mechanic** for proper installation.

- You **purchase from a reputable source** (avoiding cheap knockoffs).

**Avoid buying if:**

- You **cannot verify the part s authenticity** (risk of counterfeit damage).

- Your **engine has other major issues** (rod knock, seized camshaft, etc.).

- You **plan to heavily modify the engine** (turbocharging without a performance head).

- You **lack the tools or experience** for a clean installation.

**Best Approach:**

- **Get a second opinion** from a mechanic before buying.

- **Check for warping** with a straightedge before installation.

- **Use a torque wrench** and follow **Ford s service manual** for proper bolt tightening.

- **Consider a full engine rebuild** if the head is just one of many failing components.

A well-executed cylinder head replacement can **extend your engine s life and restore performance**, but it requires **careful planning and execution**.

Details:

##Ford RF-948M-6090-R70. All seats and surface are re-machined within.e.specifications. All bolt holes are repaired as needed. Completely remanufactured cylinder head.

All heads are vacuum tested to ensure proper valve seating.FREE SHIPPING inside the continental USA only. ### Full Vehicle Application List. FREE SHIPPING inside the USA. The RF prefix confirms it was cast at Fords Bridged plant in Wales, where all European Zyrtec production originated.

1995 Ford Contour GL, LX 2.0L base. North America 948M specific 1995 1997 only. All heads are and guaranteed to be free from casting defects. New parts are installed as needed.

Year Make model Trim. 1995 Mercury Mystique GS, LS. Parts are inspected and refurbished to like new if within.e specification.

part #: rf948m6090r70 price

  • $495.00

specifications cylinderheapar:

  • for makes: Ford
  • mpn: Rf948m6090r70
  • type: Cylinder Head
  • oe/oem part number: Ac354c2
  • items included: 1 Cylinder Head With Valves And Springs
  • material: Aluminum
  • finish: Remanufactured
  • country of origin: United States

payments cylinderheapar:

  • wallet: Paypal
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  • credit card: Mastercard

shipping cylinderheapar:

  • cost: $0.00
  • class: Standard
  • carrier: FedEx
  • type: Calculated
  • transit: 3-9 Days
  • service: FedEx Ground / FedEx Home Delivery

returns cylinderheapar:

  • policy: No Returns

offer cylinderheapar:

  • options: Ship-to-home
  • started: April 8, 2026
  • quantity: 4
  • availability: In Stock
  • best offers: True
  • sold: 0

seller cylinderheapar:

  • # reviews: 12
  • rating: 100.0%
  • city: Oakland, California

general cylinderheapar:

  • condition: Remanufactured
  • Car Truck Parts Accessories > Engines Engine Parts > Cylinder Heads
for makes: ford, type: cylinder head, oe/oem part number: ac354c2, items included: 1 cylinder head with valves and springs, finish: remanufactured, country of origin: united states,
category: auto parts > car truck parts accessories > engines engine parts > cylinder heads, material: aluminum, sku: 11876083160818793,
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1 offer $495.00 USD
  • Remanufactured. Offer #1 priced at $495.00 + $0.00 shipping estimate = $495.00* total. Parts are inspected and refurbished to like new if within o.e specification.FREE SHIPPING

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