CADILLAC 03517334 Passenger Right Cylinder Head 368 6.0L

( Manufacturer Part Number: 03517334 ), ( Part Type: Cylinder Head ), ( Id: Ab09436a-6f99-4009-a766-48c07706220d ), ( Interchange: 306-1255 )

Review CADILLAC Passenger Right Cylinder Head Assembly Oem 368 6.0l fits DEVILLE 1980–1984

The **Cadillac 03517334 cylinder head (passenger side, right) for the 1980 1984 368 cubic-inch (6.0L) V8 engine** is a meticulously crafted, high-performance component designed to deliver reliable power and durability in one of the most iconic American muscle cars of the era. This right-hand cylinder head, part of the legendary **L36** or **L78** engine family, is engineered to accommodate the robust demands of Cadillac s full-size models, including the **DeVille, Fleetwood, and Eldorado**, ensuring seamless integration with the rest of the drivetrain. Crafted from high-quality cast iron, the head features a robust **four-valve-per-cylinder** design with **intake and exhaust ports** optimized for airflow efficiency, allowing for improved combustion and enhanced horsepower output. The **pushrod-operated** valve train, complete with **rockers and lifters**, ensures precise valve operation, reducing wear and maintaining optimal performance over time. This head is equipped with **standardized mounting points** for the **rocker arm cover, valve cover, and exhaust manifold**, ensuring a secure and leak-free installation. Additionally, the **spark plug boss** and **fuel injector ports** (where applicable) are precisely machined to accommodate modern or period-correct components, making it a versatile choice for both restoration and high-performance builds. Whether restoring a classic DeVille to its former glory or upgrading an existing engine for increased power, this cylinder head is a critical, high-quality replacement that upholds the legendary reliability and performance Cadillac engines are known for.

### **Pros and Cons of Buying a 1980-1984 Cadillac 368 V8 (6.0L) Passenger-Side Right Cylinder Head (Part #03517334)**

1. **Proven Performance** The 368 V8 was a robust engine in its time, known for durability and strong power output, especially in muscle cars and luxury vehicles. A properly functioning cylinder head ensures optimal combustion and engine efficiency.

2. **Widely Available Parts & Support** Being a classic Cadillac engine, replacement parts, gaskets, and labor support are still available through aftermarket suppliers, junkyards, and specialty auto shops. This makes repairs and maintenance more accessible than on some older or less common engines.

3. **Classic Engine Appeal** If you re restoring or maintaining a vintage Cadillac, this head is a key part of preserving the vehicle s original character. Many enthusiasts prefer keeping original or high-quality reproduction parts for authenticity.

4. **Modularity & Upgrade Potential** The 368 V8 can be modified for better performance (e.g., porting, valve jobs, or even swapping in a more modern head) if needed. The head s design allows for some tuning flexibility.

5. **Lower Cost Compared to New** Since this is a used or aftermarket part, it will be significantly cheaper than a brand-new OEM head, making it a cost-effective solution for repairs.

6. **Compatibility with Other Engines** The 368 V8 shares many components with other Cadillac engines (e.g., 429, 454, or even some GM big-blocks), so some knowledge or parts may transfer over.

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1. **Age & Wear** The part is over 40 years old, meaning it may show signs of wear, corrosion, or deterioration. If sourced from a junkyard or salvage yard, it may require inspection for cracks, warping, or internal damage.

2. **Potential for Leaks** Older cylinder heads, especially those exposed to moisture or improper storage, can develop cracks or leaks around the valve cover, oil passages, or gasket surfaces. This could lead to oil or coolant leaks if not addressed.

3. **Gasket Replacement Necessity** Even if the head itself is sound, the gasket (or new gasket) will need to be replaced during installation. A poor-quality gasket could cause leaks or poor sealing over time.

4. **Limited Modern Support** While parts are still available, finding a mechanic with deep experience in 1980s Cadillac engines may be harder than for newer vehicles. Some shops may charge premium rates for specialized labor.

5. **Potential for Rust or Corrosion** If the head was stored in a damp environment, rust can weaken structural integrity. A thorough cleaning and inspection are essential before installation.

6. **Performance Limitations** The stock 368 V8 is not a high-revving or high-flow engine by modern standards. If you re looking for extreme power, you may need to invest in additional modifications (e.g., headers, camshafts, or a performance intake).

7. **Mismatch with Modern Standards** Emissions and fuel system requirements have changed significantly since the 1980s. If the engine is being used in a modern vehicle or for street use, you may need to address carburetor tuning, ignition systems, or exhaust restrictions.

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The **1980-1984 Cadillac 368 V8 passenger-side right cylinder head (part #03517334)** is a solid choice for restoring or repairing a classic Cadillac, provided you take the time to inspect it thoroughly for damage. It offers reliability, performance, and a nostalgic appeal that many enthusiasts value. However, its age means you should be prepared for potential wear, corrosion, or the need for additional repairs (such as gasket replacement or valve adjustments).

If you re restoring a vintage vehicle and prioritize authenticity and classic performance, this part is a worthwhile investment. If you re looking for a high-performance or modern engine, you may need to pair it with additional upgrades. Always source the part from a reputable supplier (e.g., a junkyard with a good reputation, an aftermarket dealer, or a trusted restoration shop) and have it inspected by a mechanic familiar with Cadillac engines.

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- **Buy it if:** You re restoring a classic Cadillac, have experience with older engines, and are willing to invest time in inspection and potential repairs. Ensure the head is free of cracks, warping, or severe corrosion.

- **Avoid it if:** You re not comfortable with older engine mechanics, need a part for a high-performance build without additional modifications, or want a hassle-free, modern solution.

- Inspect the head for cracks (use dye penetrant or a magnifying glass).

- Replace the head gasket and valve stem seals during installation.

- Consider a valve job or porting if the engine is being rebuilt for better performance.

- Consult with a Cadillac specialist or engine builder before purchasing to confirm compatibility with your project.

For most classic Cadillac restorations, this part is a **good value** and a key component for achieving a fully functional, period-correct engine. Just approach it with realistic expectations and proper preparation.

Details:

CADILLAC FLEETWOOD 80 UP 80 8-368 6.0L. This part will fit the following: CADILLAC DEVILLE 80 UP 80 8-368 6.0L. Search for more parts CADILLAC DEVILLE. CADILLAC DEVILLE 80 UP 81-84 8-368 6.0L, 4BC.

part #: 03517334 price

• $300.00

specifications cylinderheapar:

• for models: Deville
• for makes: Cadillac
• for years: 1980-1984
• mpn: 03517334
• part type: Cylinder Head
• id: Ab09436a-6f99-4009-a766-48c07706220d
• interchange: 306-1255

general cylinderheapar:

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

payments cylinderheapar:

• credit card: Visa
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• wallet: Paypal

shipping cylinderheapar:

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

returns cylinderheapar:

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

seller cylinderheapar:

• rating: 99.5%
• # reviews: 15685
• city: Brush, Colorado

offer cylinderheapar:

• sold: 0
• started: April 10, 2026
• quantity: 1
• options: Ship-to-home
• best offers: True
• availability: In Stock

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