HONDA 6964233 Hatchback Cylinder Head Cam 2.0L K20A3

( Manufacturer Part Number: 6964233 ), ( Part Type: Cylinder Head Cam ), ( Oe/oem Part Number: 7393895 ), ( Id: 4076e5be-6195-4644-b4ad-5afcb5db86d1 ), ( Interchange: 306-59283 ), ( Year: 2004 ), ( O.e. Part Number: 12100pnle00, 10003pnfa01 ), ( Partout Id: A-133754207 )

Review HONDA Hatchback Cylinder Head Assembly Oem 2.0l One Bad Cam fits CIVIC SI 2002–2005

The **Honda 6964233 Cylinder Head (2.0L K20A3, 2002-2005 Civic Hatchback SI)** is a precision-engineered component designed to deliver optimal performance and reliability for Honda s high-revving, naturally aspirated inline-four engine architecture. Crafted from high-grade cast iron, this cylinder head features a robust, compact design optimized for efficient heat dissipation and structural integrity, ensuring it can withstand the demanding thermal and mechanical stresses of high-performance driving. The head is equipped with **four valves per cylinder** (intake and exhaust) arranged in a pent-roof configuration, maximizing airflow and combustion efficiency while minimizing turbulence for improved throttle response and power delivery. The **K20A3 engine**, renowned for its compact yet powerful nature, relies on this cylinder head to maintain precise valve timing and sealing, critical for achieving the SI model s signature blend of agility and spirited acceleration.

This cylinder head incorporates **Honda s signature valve train system**, featuring **hydraulic lifters** for consistent valve lash adjustment and **solid roller rocker arms** that reduce friction and wear, contributing to the engine s smooth operation and longevity. The **intake ports** are generously sized to facilitate a strong airflow charge, while the **exhaust ports** are contoured to optimize scavenging and backpressure management, enhancing exhaust gas flow and overall engine breathing. The head is also equipped with **integrated spark plug bosses** and **camshaft mounting surfaces**, ensuring precise alignment and secure mounting for the **K20A3 s dual overhead camshaft (DOHC) configuration**. The **valve guides and seats** are precision-machined to accommodate the engine s high-revving capabilities, with the intake valves often featuring **sodium-filled stems** to prevent overheating and ensure consistent performance under heavy loads.

For performance enthusiasts, this cylinder head serves as a critical foundation for modifications, whether through **porting and polishing** to increase airflow, **upgraded valve springs** for higher RPM stability, or **aftermarket camshafts** to enhance low-end torque and top-end power. The **threaded spark plug holes** and **camshaft bolt patterns** are designed to accommodate a wide range of aftermarket components, making it a versatile choice for both stock restorations and high-performance builds. When paired with a **high-flow air intake system, tuned exhaust, and performance fuel delivery**, this cylinder head can unlock significant gains in horsepower and torque while maintaining the K20A3 s reputation for reliability and durability. Whether used in a **restomod project** or a **street-legal performance application**, the **Honda 6964233 cylinder head** remains a cornerstone of the Civic SI s legendary driving dynamics, blending Honda s engineering precision with the potential for serious power upgrades.

### **Pros and Cons of Buying a Honda 2002-2005 Civic Hatchback SI (K20A3 Engine) with a Rebuilt Cylinder Head**

#### **Pros**

1. **Reliability of the K20A3 Engine**

The K20A3 is a well-regarded engine in the Honda Civic lineup, known for its durability and smooth operation when properly maintained. With a rebuilt cylinder head, the engine should run more efficiently, reducing the risk of overheating or misfires.

2. **Performance Potential**

The SI (Sport Interior) trim comes with a tuned suspension, sport-tuned exhaust, and a more aggressive stance, making it a fun-to-drive hatchback. If the head rebuild was done correctly, it can restore power and responsiveness, especially if paired with aftermarket upgrades like a cold air intake or performance exhaust.

3. **Fuel Efficiency**

The K20A3 is relatively efficient for its class, especially in the Civic s lightweight hatchback body. With a rebuilt head, leaks (such as those from a blown head gasket) are eliminated, improving compression and fuel economy.

4. **Affordability**

The 2002-2005 Civic SI is a budget-friendly used car, making it an attractive option for those who want a sporty, practical hatchback without spending much. A rebuilt head adds value by extending the engine s lifespan.

5. **Aftermarket Support**

The K20A3 has a strong aftermarket presence, with readily available parts, performance mods, and tuning options. This makes maintenance and upgrades easier and more cost-effective.

6. **Rear-Wheel Drive Option (if applicable)**

Some 2002-2005 Civics (especially the EX and Si models) were available with rear-wheel drive (RWD), which improves handling and makes the car more engaging to drive compared to front-wheel drive.

7. **Honda s Reputation for Longevity**

Honda engines, when maintained properly, are known for lasting well beyond 200,000 miles. A rebuilt head ensures that the engine can continue running reliably for many more years.

---

#### **Cons**

1. **Potential for Hidden Issues**

- **Timing chain stretch or failure** (common in K20 engines, leading to ticking noises and potential catastrophic failure if ignored).

- **Water pump failure** (often linked to head gasket leaks, which can cause coolant loss and overheating).

- **Transmission issues** (especially in automatic models, where fluid leaks or solenoid failures can occur).

- **Suspension wear** (ball joints, bushings, and struts may need replacement over time).

A thorough pre-purchase inspection is critical to avoid buying a car with other major problems.

2. **Rebuilt Head May Not Last Long**

- **Leaking gaskets** (valve cover, oil pan, or head gasket).

- **Improper torque specs** on bolts, leading to warping or leaks.

- **Using low-quality parts**, which may fail sooner than OEM components.

Always ask for proof of the rebuild (e.g., photos of the disassembled head, new gaskets, and proper torque values).

3. **Maintenance Costs**

- **Timing chain inspection/replacement** (every 100,000 150,000 miles).

- **Spark plugs, coils, and wires** (every 60,000 100,000 miles).

- **Coolant flushes** (every 5 years or 60,000 miles).

- **Transmission fluid changes** (if automatic).

4. **Depreciation and Resale Value**

The Civic SI is not a highly sought-after model for resale, especially compared to newer or more premium cars. If you plan to sell later, you may not recoup much of the purchase price.

5. **Driving Experience Limitations**

While the SI trim is sporty, it lacks modern refinements like electronic stability control (ESC), which was not standard until later model years. The car may feel less safe or controlled in aggressive driving situations compared to newer vehicles.

6. **Fuel Quality and Environmental Factors**

Older engines are more sensitive to poor fuel quality, which can lead to carbon buildup, injector clogging, or even engine damage over time. If you drive in areas with low-quality fuel, this could become a recurring issue.

7. **Noise and Comfort**

The Civic s cabin is relatively quiet, but the engine and transmission (especially in manual models) can be louder than modern cars. The seats and insulation are basic, so long trips may feel less comfortable than in newer vehicles.

---

### **Recommendation**

The **2002-2005 Honda Civic Hatchback SI with a rebuilt K20A3 cylinder head** is a **solid choice for buyers who want a fun, affordable, and reliable sporty hatchback** provided they are prepared for potential maintenance needs beyond just the engine. The rebuilt head addresses a common failure point, but other systems (timing chain, water pump, transmission, and suspension) must also be inspected thoroughly.

#### **Who Should Buy This Car?**

- **Budget-conscious buyers** who want a used car without spending thousands on a newer model.

- **Enthusiasts** who enjoy driving a lightweight, peppy hatchback with manual transmission options.

- **Owners who plan to perform maintenance themselves** or have access to a trusted mechanic.

- **Those who prioritize fuel efficiency and practicality** (hatchback cargo space) over luxury features.

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

- **Buyers who want a low-maintenance, long-term investment** (consider a newer Honda or a well-documented used car with a clean service history).

- **Those who dislike older car quirks** (noisy engine, basic interior, lack of modern safety features).

- **People who cannot afford unexpected repairs** (timing chain failure can cost $1,500 $2,500 ).

- **Drivers in areas with poor fuel quality** (risk of injector or carbon buildup issues).

#### **Final Recommendation**

- A **properly rebuilt cylinder head** (documented with receipts, photos, or a warranty).

- **No signs of timing chain stretch** (listen for ticking noises under acceleration).

- **Fresh fluids** (oil, coolant, transmission fluid if automatic).

- **A clean service history** (or at least proof of past maintenance).

then it can be a **great project car or daily driver** for someone who enjoys hands-on ownership. However, if you re looking for a **plug-and-play, hassle-free used car**, consider a **later-model Civic (2006 with i-VTEC) or a different Honda model** (e.g., Accord, CR-V) with a more modern engine and safety features.

**Always get a pre-purchase inspection** from a trusted mechanic before buying, and prioritize cars with **minimal mileage (under 120,000 miles) and no major red flags**.

Details:

Model: HONDA CIVIC. Search for more parts HONDA CIVIC.

part #: 6964233 prices

• $114.99-$653.45

specifications cylinderheapar:

• for models: Si, Civic
• for makes: Honda
• for years: 2002-2005
• mpn: 6964233
• part type: Cylinder Head Cam
• oe/oem part number: 7393895
• id: 4076e5be-6195-4644-b4ad-5afcb5db86d1
• interchange: 306-59283
• year: 2004
• o.e. part number: 12100pnle00, 10003pnfa01
• partout id: A-133754207

payments cylinderheapar:

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

shipping cylinderheapar:

• transit: 3-6 Days
• service: Standard
• class: Standard
• type: Fixed
• cost: $0.00

general cylinderheapar:

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

offer cylinderheapar:

• sold: 0
• options: Ship-to-home
• availability: In Stock
• best offers: True
• started: June 12, 2026
• quantity: 1

returns cylinderheapar:

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

seller cylinderheapar:

• city: Brush, Colorado
• # reviews: 17151
• rating: 99.6%

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