1. Cylinder Heads & Parts Engines Components For Sale
  2. sku: 11448922022120711
  3. MODERN ENGINE 602001510764

MODERN ENGINE Cylinder Head 602001510764 Inc. 6.0L 364 V8 317

fits model: H2. make: Chevy, Hummer. year: 1999–2007.

Modern Engine Inc. 602001510764 1999-07 Chevy And Hummer H2 6.0l 364 V8 Rebuilt Cylinder Head Casting # 317

( Brand: Modern Engine ), ( Country Of Origin: United States ), ( Finish: Pcd Milled To Ensure A Super Smooth Finish ), ( Manufacturer Warranty: 3 Years ), ( Type: Direct Replacement ), ( Core: Core Must Be Returned With Our Free Label ), ( UPC: 602001510764 )

Review MODERN ENGINE Inc. Chevy And Hummer 6.0l 364 V8 Rebuilt Cylinder Head Casting 317 fits H2 1999–2007

The **Chevrolet H2 6.0L V8 Cylinder Head (Part Number: 602001510764, Model Year: 1999-07)** is a robust, high-performance component designed to deliver exceptional durability and power output for the iconic Hummer H2 s legendary 364-cubic-inch (5.9L) Vortec V8 engine. Engineered to meet the demanding requirements of heavy-duty off-road and towing applications, this cylinder head is forged from premium cast iron, ensuring structural integrity and resistance to thermal stress under extreme operating conditions. The head features a **317-degree combustion chamber design**, optimized for efficient air-fuel mixture combustion while maintaining optimal compression ratios for both performance and fuel efficiency. Its **four-valve-per-cylinder architecture** with precision-machined intake and exhaust ports enhances airflow dynamics, improving horsepower and torque delivery while reducing carbon buildup and promoting smoother engine operation. The head is equipped with **high-strength pushrod guides, rocker arms, and valve springs**, all engineered to withstand the high RPMs and torque loads characteristic of the H2 s aggressive driving style. Additionally, it includes **integrated spark plug bosses and exhaust port flanges**, ensuring a secure and leak-free installation with the engine block and intake manifold. Whether used for restoration projects, performance upgrades, or replacement due to wear, this cylinder head is a critical component that preserves the raw, brute-force power for which the Hummer H2 is renowned. Its compatibility with the 1999-2007 model range ensures seamless integration with the original engine bay layout, making it an ideal choice for enthusiasts seeking to restore or enhance their vehicle s legendary performance.

### **Pros and Cons of Buying a 1999 Chevrolet Hummer H2 (Engine 602001510764, 6.0L 364 CID V8, Cylinder Head 317)**

#### **Pros**

1. **Exceptional Towing and Hauling Capacity**

The 6.0L V8 (LS1-based) in the H2 is a robust engine capable of towing **up to 8,500 10,000 lbs** with proper equipment, making it ideal for heavy-duty tasks like trailers, boats, or construction loads. The stock suspension and frame are designed to handle significant weight.

2. **Strong and Reliable Engine (LS1-Based)**

The **6.0L V8 (GM LS1 architecture)** is a well-regarded engine known for durability when properly maintained. It produces **300 360 hp** (depending on modifications) and **364 lb-ft of torque**, providing strong low-end power. With regular oil changes and cooling system maintenance, it can last **200,000 miles** in some cases.

3. **Full-Size Truck Platform with SUV Utility**

Unlike modern SUVs, the H2 is built on a **full-size truck chassis**, offering a **long wheelbase (128-inch)**, high ground clearance, and a **spacious cargo bed (8 ft long)**. This makes it practical for hauling large items while retaining SUV-like approach/departure angles.

4. **Off-Road Capability (Stock & Modified)**

The H2 comes with **locking rear differentials (optional), skid plates, and a high ground clearance**, making it capable of light off-roading. Aftermarket upgrades (lift kits, 4WD systems, armor) can enhance its off-road performance significantly.

5. **High Resale Value for Enthusiasts**

The H2 is a **collector s item** among truck and SUV enthusiasts, especially in **low-mileage or well-maintained condition**. Modified H2s (especially with **LS1 engines, 4WD, or armor**) can hold value well, unlike many modern SUVs.

6. **Customization Potential**

The H2 is a **blank canvas** for modifications. Common upgrades include:

- **Engine swaps** (LS3, Duramax, big-block Chevy)

- **4WD systems** (Symmetrical, locking rear diff)

- **Suspension lifts** (2 6 inches)

- **Armor and bodywork** (steel/aluminum reinforcement)

- **Exhaust and intake upgrades** (for better performance)

- **Lighting and aesthetic mods** (LED, fog lights, custom paint)

7. **Strong Secondary Market for Parts**

Due to its popularity, **parts (especially for the LS1 engine and chassis) are widely available**, both new and used. This makes repairs and modifications more accessible than on some niche vehicles.

8. **Comfortable for Daily Driving (When Well-Maintained)**

Despite its rugged reputation, the H2 is **surprisingly comfortable** for a full-size SUV, with a **spacious cabin, power seats, and a smooth ride** (especially on highways). The **automatic transmission (4L60 or 4L65)** is reliable if maintained.

9. **High Ground Clearance and Approach/Departure Angles**

With a **16.5-inch ground clearance**, the H2 can handle **uneven terrain, snow, and light rocks** without issues. The **approach/departure angles (33 /33 )** are excellent for off-road use.

10. **Nostalgic and Unique Appeal**

The H2 is a **cult favorite** among truck and SUV lovers, especially those who appreciate **bold, utilitarian design**. Owning one stands out in a sea of modern SUVs and trucks.

---

#### **Cons**

1. **Poor Fuel Economy**

The **6.0L V8 guzzles gas**, averaging **12 15 MPG combined** (worse in stop-and-go traffic). Expect to spend **$100 $150 per fill-up** if driving daily. Diesel alternatives (like the Duramax) are more efficient but require different maintenance.

2. **High Maintenance Costs**

- **Oil changes every 5,000 miles** (LS1 engines are **oil-hungry** and require **high-quality synthetic oil**).

- **Cooling system failures** (water pumps, thermostats, radiators) are common if not maintained.

- **Suspension wear** (shocks, bushings, control arms) due to heavy weight.

- **Transmission issues** (4L60/4L65 can develop **slipping or rough shifting** over time).

- **Exhaust manifold cracks** (common on LS1 engines, especially if modified).

- **Brake system upgrades** (stock brakes are weak; aftermarket rotors/drums needed for towing).

3. **Heavy Weight (4,500 5,000 lbs)**

The H2 is **extremely heavy**, which affects **fuel economy, handling, and towing dynamics**. The **stock suspension is stiff**, leading to a **rough ride on pavement** unless modified.

4. **Poor Visibility in Reverse**

The **small rear window and blind spots** make backing up difficult. Many owners install **rear cameras or backup sensors** to mitigate this.

5. **High Insurance Costs**

Due to its **size, power, and value**, insurance premiums for an H2 are **significantly higher** than for a comparable SUV or truck. Expect **$200 $500/month** depending on location and coverage.

6. **Rust Issues (Especially in Snowbelts)**

The **floor pans, rocker panels, and wheel wells** are prone to rust if the vehicle was exposed to **salt, moisture, or poor storage**. A **rust inspection** is critical before purchase.

7. **Limited Modern Tech & Safety Features**

- **No modern safety tech** (no blind-spot monitoring, lane-keeping, or automatic braking).

- **Basic infotainment** (if any) compared to modern trucks.

- **Poor fuel gauge accuracy** (common issue with LS1 fuel systems).

- **Manual transmission option is gone** (only automatic available).

8. **Difficulty Finding Qualified Mechanics**

While LS1 engines are common, **specialized H2 mechanics** are rare. Many repairs may require **truck specialists or Chevy dealerships**, increasing costs.

9. **Environmental & Legal Restrictions**

- Some **cities and HOAs ban H2s** due to their size and noise.

- **Emissions regulations** may affect resale value in some states.

- **Towing laws** vary by state (some require **special permits** for heavy loads).

10. **Depreciation (If Not a Collector s Item)**

While well-maintained H2s hold value, **average examples depreciate quickly** due to their age and high maintenance needs. If you don t plan to **modify or collect**, the long-term cost may outweigh the benefits.

11. **Stock Performance is Lackluster**

- The **stock 6.0L V8 is strong but not fast** (0-60 mph in **8 10 seconds**).

- **Transmission shifting can be sluggish** unless upgraded.

- **Braking is weak** (stock drums/rotors struggle with towing loads).

12. **Resale Value is Unpredictable**

- A **stock H2 with high miles** may sell for **$5,000 $10,000**.

- A **well-modified, low-mileage H2** can fetch **$30,000 $50,000 **.

- **Modification choices affect resale** (some buyers prefer **stock or minimal mods**).

---

### **Key Considerations Before Buying**

1. **Budget for Maintenance**

- **Oil changes every 5K miles** ( $100 $200 each).

- **Cooling system refresh every 50K 100K miles** ( $500 $1,500).

- **Suspension upgrades** ( $1,000 $3,000 for a full lift and shocks).

- **Brake system overhaul** ( $1,000 $2,000 for rotors/drums).

- **Exhaust manifold replacement** ( $500 $1,000).

- **Transmission fluid flushes** ( $200 $400 every 50K miles).

**Annual maintenance cost: $1,500 $3,000 ** (higher if neglected).

2. **Fuel Costs**

- **12 15 MPG** means **$100 $150 per fill-up** (assuming $3.50/gal).

- **Towing reduces MPG further** (expect **8 12 MPG** when loaded).

3. **Storage & Transportation**

Details:

Cylinder Head Re manufacturing Process Includes. Fluids, towing, rentals or diagnosis charges. Warranty Information. Warranty from the date of purchase.

2000 Chevrolet Suburban 6.0L. Damage due to overheating, pre-ignition or detonation. 1999 Chevrolet Suburban 6.0L. Shipping Information.

3 years 36,000 miles parts only.

specifications cylinderheapar:

  • for models: H2
  • for makes: Chevy, Hummer
  • for years: 1999-2007
  • brand: Modern Engine
  • country of origin: United States
  • finish: Pcd Milled To Ensure A Super Smooth Finish
  • manufacturer warranty: 3 Years
  • type: Direct Replacement
  • core: Core Must Be Returned With Our Free Label
  • upc: 602001510764

seller cylinderheapar:

  • # reviews: 41438
  • rating: 99.8%
  • city: Glendale, California

general cylinderheapar:

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

shipping cylinderheapar:

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

offer cylinderheapar:

  • sold: 0
  • options: Ship-to-home
  • quantity: 2
  • availability: In Stock
  • started: February 5, 2026

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

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for models: h2, for makes: chevy, hummer, for years: 1999-2007, country of origin: united states, finish: pcd milled to ensure a super smooth finish, manufacturer warranty: 3 years, type: direct replacement, core: core must be returned with our free label,
category: auto parts > car truck parts accessories > engines engine parts > cylinder heads, sku: 11448922022120711,
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