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  3. INFINITI 1104064Y00

INFINITI 1104064Y00 Infinity Cylinder Head 2.0L

fits model: G20. make: Infiniti. year: 1991–1993.

1104064y00 Infiniti 1991-1993 Infinity G20 Cylinder Head Assembly Oem 2.0l

( Manufacturer Part Number: 1104064Y00 ), ( Part Type: Infinity Cylinder Head ), ( Id: Ec4c4e15-85a6-4d11-8d99-60565ed62d65 ), ( Interchange: 306-58483 )

Review INFINITI Infinity Cylinder Head Assembly Oem 2.0l fits G20 1991–1993

The **Infiniti 1104064Y00 cylinder head (1991 1993 2.0L GA16DE engine)** is a meticulously engineered component designed to deliver peak performance and reliability for the iconic **Infiniti G20** and its Japanese counterpart, the **Nissan 200SX**. This forged aluminum cylinder head, identified by its unique part number, is a critical element of the **GA16DE inline-four engine**, renowned for its balanced power delivery and smooth operation. Crafted with precision, the head features **four valves per cylinder** two intake and two exhaust operated by a **double overhead camshaft (DOHC)** system, ensuring optimal airflow and combustion efficiency. The intake ports are generously sized to maximize airflow into the combustion chambers, while the exhaust ports are contoured to enhance scavenging, reducing backpressure and improving exhaust gas flow. The head incorporates **hydraulic valve lifters**, eliminating the need for periodic valve adjustment, and is equipped with **separate intake and exhaust camshafts**, each driven by a timing chain for reliable, maintenance-free operation. The **fuel-injected** design of the GA16DE engine pairs seamlessly with this cylinder head, allowing for precise fuel delivery and efficient power output, typically producing around **140 150 horsepower** depending on tuning and modifications. Built to withstand the demands of daily driving as well as spirited performance, this head is often sought after by enthusiasts looking to restore or upgrade their G20 s engine, offering a perfect blend of durability and performance. Whether used in stock form or as a foundation for modifications, the **1104064Y00 cylinder head** remains a cornerstone of the GA16DE s legacy, embodying the engineering prowess that defined a generation of sporty, fuel-efficient coupes.

### Pros and Cons of Buying a 1991-1993 Infiniti G20 (2.0L) Cylinder Head (Part Number: 1104064Y00)

#### **Pros:**

1. **Compatibility and Fit:** This cylinder head is designed specifically for the 2.0L inline-four engine found in the 1991-1993 Infiniti G20 (and some Nissan Sentra/200SX models). It is a direct replacement, ensuring proper fitment without modifications.

2. **Reliability of the Engine:** The 2.0L GA16DE engine (used in the G20) is known for being durable and relatively straightforward to work on. Many owners report longevity if maintained properly, and the cylinder head is a critical component for long-term reliability.

3. **Aftermarket Support:** The G20 s popularity in the tuner and classic car scene means parts like this cylinder head are widely available from both OEM and aftermarket suppliers. You can often find remanufactured or rebuilt versions at a lower cost than brand-new ones.

4. **Potential for Restoration:** If you re restoring a G20, this cylinder head is a key part of rebuilding the engine. A properly restored head can significantly improve performance and reliability, making the car more enjoyable to drive.

5. **Cost-Effective Replacement:** Compared to some modern high-performance cylinder heads, this part is relatively inexpensive, especially if you opt for a remanufactured or used version. This makes it a practical choice for budget-conscious buyers.

6. **Performance Potential:** With the right modifications (e.g., porting, upgraded valves, or camshafts), this cylinder head can be tuned for better airflow and power, though stock performance is modest (around 130-150 horsepower).

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#### **Cons:**

1. **Age and Wear:** The 1991-1993 G20 cylinder head is over 30 years old, meaning it may have been in storage for a long time. If purchased used or from a salvage yard, it could have hidden damage (e.g., cracks, warping, or worn valve seats) that isn t immediately visible.

2. **Quality Variability:** Depending on the source, the quality of the cylinder head can vary. Some remanufactured parts may not be as thoroughly inspected or rebuilt as higher-end aftermarket options. Always verify the supplier s reputation.

3. **Limited Performance Upgrades:** While the head can be modified for better airflow, it is not designed for extreme power levels (e.g., forced induction). Pushing it too hard risks overheating, valve float, or catastrophic failure.

4. **Rust and Corrosion:** Older cylinder heads, especially those from rust-prone regions, may suffer from internal corrosion (e.g., in the combustion chambers or valve guides). This can lead to leaks or poor sealing.

5. **Labor-Intensive Installation:** Replacing a cylinder head requires significant mechanical skill, including removing the engine, disassembling the head, machining (if needed), and reassembling with proper gaskets and torque specs. If you re not experienced, this could be a costly DIY project.

6. **Depreciation Risk:** If you re buying this head as part of a larger engine rebuild, the overall value of a 1991-1993 G20 is low compared to modern cars. The cost of the head may not be fully justified by the car s resale value.

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### **Conclusion:**

Buying a 1991-1993 Infiniti G20 (2.0L) cylinder head (1104064Y00) is a practical choice if you re restoring or rebuilding a G20, Sentra, or 200SX. It offers a balance of affordability, availability, and compatibility, but it comes with risks related to age, quality, and potential hidden damage. The key to success lies in sourcing the part from a reputable supplier (preferably remanufactured or inspected by a trusted mechanic) and ensuring the rest of the engine is in good condition.

If you re not mechanically inclined, factor in the labor cost of installation, which could outweigh the part s price. For enthusiasts who enjoy classic cars and are willing to invest time and effort, this cylinder head is a solid investment. For casual buyers or those seeking a hassle-free upgrade, it may not be the best option.

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### **Recommendation:**

1. **Buy Remanufactured:** Opt for a remanufactured cylinder head from a well-known supplier (e.g., Summit Racing, JE Crooks, or a local engine rebuild shop). These are inspected, cleaned, and rebuilt to factory or better specifications.

2. **Inspect Thoroughly:** If buying used, have a mechanic inspect the head for cracks, warping, or internal corrosion. Look for signs of proper machining (e.g., valve seat angles, deck surface flatness).

3. **Consider a Full Engine Rebuild:** If restoring a G20, pair this cylinder head with a rebuilt engine block, crankshaft, and other critical components to maximize reliability.

4. **Budget for Labor:** If you re not experienced, budget for professional installation to avoid costly mistakes.

5. **Avoid Salvage-Yard Risks:** Unless you re confident in your inspection skills, avoid buying from salvage yards where parts may have unknown damage.

6. **Explore Alternatives:** If performance is a priority, research aftermarket cylinder heads (e.g., from companies like JE Crooks or Scat) that offer improved airflow or durability for slightly higher costs.

**Final Verdict:** This cylinder head is a **good value for restoration projects** but requires careful sourcing and installation. It s less ideal for casual buyers or those seeking modern performance. For the right project, it s a worthwhile part.

Details:

Search for more parts INFINITI G20. Cylinder Head. This part will fit the following: INFINITI G20 91-93.

part #: 1104064y00 prices

  • $112.00-$712.50

specifications cylinderheapar:

  • for models: G20
  • for makes: Infiniti
  • for years: 1991-1993
  • mpn: 1104064y00
  • part type: Infinity Cylinder Head
  • id: Ec4c4e15-85a6-4d11-8d99-60565ed62d65
  • interchange: 306-58483

payments cylinderheapar:

  • wallet: Paypal
  • credit card: Diners-club
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seller cylinderheapar:

  • rating: 99.3%
  • city: Brush, Colorado
  • # reviews: 14425

general cylinderheapar:

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

returns cylinderheapar:

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

shipping cylinderheapar:

  • service: Standard
  • type: Fixed
  • transit: 4-7 Days
  • cost: $0.00
  • class: Standard

offer cylinderheapar:

  • sold: 0
  • availability: In Stock
  • quantity: 1
  • options: Ship-to-home
  • best offers: True
  • started: February 19, 2026
for models: g20, for makes: infiniti, for years: 1991-1993, part type: infinity cylinder head, id: ec4c4e15-85a6-4d11-8d99-60565ed62d65, interchange: 306-58483,
category: auto parts > car truck parts accessories > engines engine parts > cylinder heads, sku: 11564625111546632,
Infiniti 1104064Y00 Is Similar To:
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2 offers $112.00–$712.50 USD
  • Used. Offer #1 priced at $112.00 + $110.15 shipping estimate = $222.15* total. This system was designed as a benchmark with certain understandings INFINITI G20 91-93.+$110.15 shipping
  • Used. Offer #2 priced at $712.50 + $0.00 shipping estimate = $712.50* total. Year: 1993 Model: INFINITI G20.FREE SHIPPING

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