NISSAN 306-NISSAN Motor Engine Left Lh Cylinder Head Dohc 306-59704 5.6L Unit

( Manufacturer Part Number: 306-NISSAN ), ( Condition And Options: Dohc, 5.6l, 8 Cylinder, Gasoline, L. ), ( Manufacturer Warranty: 90 Day ), ( Ipn: 306-59704 ), ( Fitment Type: Direct Replacement ), ( Oe Spec Or Performance/custom: Oem Factory Spec ), ( Core Charge: No Core Charge )

Review NISSAN 5.6l Motor Engine Left Lh Side Cylinder Head Dohc Unit Factory Oem fits TITAN 2017–2019

The **Nissan 306-Nissan 17-19 Titan 5.6L V8 Engine Left-Hand (LH) Cylinder Head (DOHC)** is a meticulously crafted, high-performance component designed for the iconic Nissan Titan s 5.6-liter V8 engine, specifically tailored for the **1997 1999 model years** under the **306-series** designation and the **17 19 Titan** generation. This **Dual Overhead Camshaft (DOHC)** cylinder head is a critical powerhouse component, engineered to deliver optimal airflow, combustion efficiency, and durability for both stock and modified applications. Constructed from **high-grade cast aluminum**, the head features a **precision-machined combustion chamber design** that maximizes compression ratios while minimizing heat buildup, ensuring consistent performance under high-load conditions. The **intake and exhaust valve ports** are strategically contoured to enhance flow characteristics, reducing turbulence and improving cylinder scavenging for better horsepower and torque output. The **left-hand (LH) orientation** is essential for proper engine bay alignment, ensuring correct camshaft and valve train integration with the rest of the engine assembly. This cylinder head is equipped with **hydraulic lifters** for smooth valve operation, eliminating the need for frequent adjustments, while the **pushrod-guided valve mechanism** ensures reliable actuation under extreme RPMs. Whether used in a **restoration project, high-performance build, or as a replacement for a worn or damaged original**, this cylinder head is a **direct-fit, OEM-quality component** that restores factory specifications or serves as a robust upgrade for enthusiasts seeking enhanced performance. Its **compatibility with aftermarket tuning solutions**, such as high-flow headers, performance cams, or forced induction systems, makes it a versatile choice for both street and light-duty towing applications. Built to withstand the demands of modern driving, this cylinder head is a **corrosion-resistant, precision-engineered part** that combines reliability with performance, making it an indispensable component for any Nissan Titan owner looking to maintain or elevate their vehicle s power output.

**Pros and Cons of Buying a Nissan 306 (Nissan 17-19 Titan 5.6L Motor Engine Left Hand Cylinder Head, DOHC Unit)**

1. **Compatibility and Fitment** The Nissan 306 cylinder head is a direct replacement for the left-hand (LH) cylinder head in the 5.6L V8 engine found in Nissan Titan models from 2017 to 2019. This ensures an exact fit, reducing the risk of installation issues.

2. **Performance Potential** The DOHC (Dual Overhead Camshaft) design allows for better airflow and valve control compared to some older SOHC (Single Overhead Camshaft) engines. If the head is in good condition, it can contribute to improved engine performance, especially when paired with upgraded internals or tuning.

3. **Common Availability** As a widely used component in the Titan and other Nissan trucks (such as the Armada and Frontier), this cylinder head is relatively easy to source from salvage yards, online marketplaces, or specialty auto parts suppliers.

4. **Potential for Restoration** If the engine is being rebuilt or restored, a used but serviceable cylinder head can be a cost-effective alternative to purchasing a brand-new one. With proper machining and valve job, it can function as well as new.

5. **Cost Savings** Buying a used or salvaged cylinder head is significantly cheaper than purchasing an OEM or aftermarket replacement, making it an attractive option for budget-conscious buyers.

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- **Worn or cracked valves** Can lead to poor sealing, reduced compression, and potential engine damage if not addressed.

- **Exhausted valve seats** May require re-machining or replacement to prevent leaks.

- **Worn camshaft lobes** Can cause excessive valve lash or premature wear on the lifters and valves.

- **Cracks or warping** The head may have thermal cracks or deformation from overheating, which can compromise structural integrity.

- **Leaking or damaged gaskets** The head gasket or valve cover gasket may be compromised, leading to oil leaks or coolant contamination.

2. **No Warranty or Return Policy** Unlike new parts, a used cylinder head typically comes with no warranty. If issues arise after installation, you will be responsible for repairs or replacements.

3. **Hidden Damage** Without a thorough inspection (including pressure testing, magnafluxing for cracks, and valve seat inspection), hidden damage may not be immediately apparent. This can lead to unexpected failures down the line.

- **Valve job** (lapping valves and seats).

- **Camshaft replacement** if lobes are worn.

- **Deck surface machining** if the head is warped.

- **Port cleaning or resurfacing** for optimal airflow.

These services add to the overall cost and time investment.

5. **Risk of Mismatched Components** If the cylinder head was removed from an engine with significant wear (e.g., rod bearing failure, piston damage), the head may have been damaged in the process. Ensuring compatibility with the rest of the engine build is critical.

6. **Potential for Counterfeit or Rebuilt Parts** Some used parts may be rebuilt with substandard materials or improperly refurbished. Always verify the source and ask for documentation or inspection reports.

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Buying a used Nissan 306 cylinder head for a 2017-2019 Titan 5.6L engine can be a **cost-effective solution** if you are prepared for the risks and willing to invest time in inspection and potential refurbishment. It is particularly suitable for:

- **DIY enthusiasts** with mechanical experience who can thoroughly inspect and machine the part.

- **Budget-conscious buyers** who prioritize affordability over convenience.

- **Engine rebuilds** where the head is one of many used components being sourced.

However, if you are **not comfortable with the inspection process, lack mechanical skills, or want a hassle-free solution**, purchasing a **new or remanufactured cylinder head** (even at a higher cost) may be the safer choice. The risk of hidden damage, machining costs, and potential engine issues can outweigh the savings of a used part for those who prefer reliability.

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- Look for **cracks** (especially around the valve guides, spark plug holes, and oil passages) using a dye penetrant or magnaflux test.

- Check for **warping** by placing the head on a flat surface and measuring gaps with a straightedge and feeler gauge.

- Verify **valve and seat condition** valves should seat properly without gaps, and seats should not be excessively worn.

- Inspect the **camshaft lobes** for wear or pitting.

- Ensure the **deck surface** is flat and free of corrosion.

- If possible, have a **machine shop or engine specialist** inspect the head before purchase. They can perform pressure testing, valve seat checks, and recommend necessary machining.

- Ask the seller for **service records** or proof that the head was removed due to normal wear rather than engine failure.

- Account for **valve jobs, camshaft replacement, or head machining** if needed. These can add $200 $600 to the total cost.

- Factor in **labor costs** if you re not doing the work yourself.

- If the engine is **high-mileage or heavily used**, weigh whether a **remanufactured cylinder head** (from a reputable supplier like **Nissan Parts, Summit Racing, or local engine rebuilders**) is worth the extra cost for peace of mind.

- If the engine is **part of a full rebuild**, evaluate whether other components (e.g., pistons, rods, crankshaft) are also used, as they may influence the head s suitability.

- Buy from **reputable salvage yards, online marketplaces with seller ratings (e.g., eBay, Facebook Marketplace), or Nissan-certified parts dealers**.

- Avoid "too good to be true" deals, as they often indicate hidden problems.

If you are **mechanically inclined, willing to invest time in inspection and refurbishment, and comfortable with the risks**, a used Nissan 306 cylinder head can be a **viable and economical choice**. However, if you prioritize **convenience, reliability, and long-term engine health**, a **new or remanufactured head** may be the better investment despite the higher upfront cost. Always err on the side of caution when dealing with used engine components.

Details:

17-19 NISSAN TITAN. This part comes with a 90 day guarantee.

part #: 306 prices

• $199.99-$503.99

specifications cylinderheapar:

• for models: Titan
• for makes: Nissan
• for years: 2017-2019
• mpn: 306-nissan
• condition and options: Dohc, 5.6l, 8 Cylinder, Gasoline, L.
• manufacturer warranty: 90 Day
• ipn: 306-59704
• fitment type: Direct Replacement
• oe spec or performance/custom: Oem Factory Spec
• core charge: No Core Charge

payments cylinderheapar:

• credit card: Diners-club
• other
• wallet: Apple-pay

offer cylinderheapar:

• availability: In Stock
• started: February 24, 2026
• sold: 0
• options: Ship-to-home
• quantity: 1
• best offers: True

general cylinderheapar:

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

seller cylinderheapar:

• city: Pensacola, Florida
• # reviews: 75544
• rating: 99.7%

returns cylinderheapar:

• time: 60 Days
• policy: Returns Accepted
• paid by: Buyer

shipping cylinderheapar:

• carrier: UPS
• transit: 3-8 Days
• service: UPS Ground
• type: Fixed
• cost: $0.00
• class: Standard

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