GM 33417369 Cylinder Head Set General 5.7L

( Brand: Gm ), ( Manufacturer Part Number: 33417369 ), ( Bundle Description: 2 Cylinder Heads ), ( Custom Bundle: Yes ), ( Fitment Type: Direct Replacement ), ( Items Included: Valves, Springs, Valve Seals ), ( Material: Cast Iron ), ( Type: Sbc ), ( Manufacturer Warranty: 90 Day ), ( Country Of Origin: Mexico )

Review GM General Motors Chevrolet Gmc 5.7l Cylinder Head Assembly Set Pair fits 350

The **GM 33417369 5.7L (350ci) Small-Block V8 Cylinder Head Set** represents a premium, high-performance upgrade designed to revitalize the breathing and efficiency of Chevrolet and GMC s legendary 5.7L V8 engine, originally based on the iconic **LB7/LT1/LT4** architecture. This meticulously engineered head set is crafted to deliver enhanced airflow, improved combustion, and increased power output while maintaining reliability and durability making it an ideal choice for both high-mileage restorations and performance-focused builds. Each head in the set features **cast iron construction**, a material renowned for its heat dissipation and strength, ensuring long-term structural integrity even under demanding conditions. The **intake and exhaust ports** are precision-machined to optimize velocity and turbulence, promoting better fuel-air mixture distribution and more efficient combustion, which translates to noticeable gains in horsepower and torque. The **valve seats** are precision-ground to accommodate modern high-performance valves, reducing the risk of pre-ignition and improving overall engine longevity. Additionally, the **valve guides** are reinforced to handle the increased stresses of aggressive camshaft profiles and high-RPM operation, while the **spark plug bosses** are reinforced to prevent cracking under extreme heat loads. This cylinder head set is compatible with a wide range of **350ci small-block Chevy applications**, including the **LS3, L96, and L76** engines, and pairs seamlessly with aftermarket camshafts, intake manifolds, and exhaust systems to unlock the full potential of your engine. Whether you're chasing street performance, towing capability, or simply restoring a classic muscle car to its former glory, this head set provides the foundation for a more responsive, efficient, and exhilarating driving experience. Built to exacting specifications and backed by GM s engineering heritage, it stands as a testament to the enduring legacy of the 5.7L small-block V8, offering a balance of performance and practicality that appeals to both enthusiasts and professionals alike.

### **Pros and Cons of Buying a 33417369 GM 5.7L (350) Cylinder Head Set**

1. **Compatibility** This part is designed specifically for GM s 5.7L (350) V8 engines, which are found in vehicles like the Chevrolet Silverado, GMC Sierra, and other full-size trucks and SUVs. It ensures a proper fit and function with minimal modifications.

2. **Performance Improvement** A new cylinder head set can restore or enhance engine performance by addressing issues like carbon buildup, valve seat wear, or warping. This can lead to better airflow, improved compression, and increased horsepower and torque.

3. **Reliability and Durability** High-quality cylinder head sets are manufactured to meet or exceed OEM specifications, reducing the risk of premature failure. They often include upgraded materials like hardened valve seats and improved cooling passages.

4. **Preventative Maintenance** Installing a head set as part of regular maintenance can prevent costly engine damage down the line, such as valve float, excessive wear, or catastrophic failure due to overheating or poor sealing.

5. **Cost-Effective Upgrade** Compared to a full engine rebuild or replacement, a cylinder head set is a relatively affordable way to refresh an engine. It can extend the life of the engine without requiring a complete overhaul.

6. **Compatibility with Modifications** If you plan to modify your engine (e.g., forced induction, nitrous, or performance tuning), a fresh head set provides a solid foundation for those upgrades. It ensures that the engine can handle increased stress without failure.

7. **Warranty Coverage** Reputable manufacturers offer warranties on their head sets, providing peace of mind in case of defects or early failure. This can be particularly valuable if the engine is critical to your vehicle s operation.

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1. **Labor-Intensive Installation** Replacing cylinder heads requires removing the engine from the vehicle, disassembling the head, machining surfaces, and reassembling everything with precision. This is a complex job that typically requires a mechanic with experience in engine rebuilds.

2. **Cost of Labor** The labor cost for installing a cylinder head set can be significant, often exceeding the cost of the parts themselves. A professional shop may charge $1,000 $3,000 or more depending on the complexity of the job and local rates.

3. **Potential for Hidden Issues** If the engine has underlying problems (e.g., warped blocks, cracked manifolds, or rod bearing wear), a head set alone won t fix them. These issues may resurface after installation, requiring additional repairs.

4. **Time Off the Road** The process can take several days to a week or more, depending on the shop s workload and whether the engine needs additional work (e.g., valve job, gasket replacement, or balancing).

5. **Risk of Improper Installation** If not installed correctly, a head set can lead to leaks, poor sealing, or even engine damage. This underscores the importance of using a qualified mechanic with experience in GM 5.7L engines.

6. **Depreciation Consideration** If the vehicle is older or has high mileage, the cost of the head set may not justify the long-term value. In such cases, it might be more economical to consider a used engine or a different vehicle.

7. **Compatibility with Aftermarket Parts** Some aftermarket cylinder head sets may not be fully compatible with stock manifolds or fuel systems, requiring additional modifications or upgrades to function optimally.

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A **33417369 GM 5.7L (350) cylinder head set** is a valuable investment for restoring or enhancing the performance and longevity of your engine, provided it is installed correctly. The benefits such as improved reliability, better power output, and preventative maintenance often outweigh the costs for vehicles that are still in regular use. However, the decision should be based on the engine s current condition, your budget, and whether you have access to skilled labor.

For **high-mileage or severely worn engines**, a head set alone may not be sufficient, and a full rebuild or engine replacement could be more prudent. Conversely, for **well-maintained engines with minor issues** (e.g., carbon buildup, worn valve seats), a head set is a cost-effective way to refresh the engine without a full overhaul.

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1. **Assess Engine Condition First** Before purchasing, have a mechanic inspect the engine for warped blocks, cracked components, or excessive wear. If the engine is in poor shape, a head set may not be enough.

2. **Choose a Reputable Manufacturer** Opt for high-quality head sets from brands like **Crane, Holley, or Edelbrock**, which offer warranties and proven performance. Avoid no-name or low-quality alternatives that could lead to premature failure.

3. **Budget for Labor** Factor in the cost of professional installation, as DIY attempts can lead to costly mistakes. If labor costs are prohibitive, consider finding a trusted mechanic who offers fair rates or a shop that specializes in GM engines.

4. **Consider a Full Valve Job** If you re replacing the heads, it s often wise to include a **valve job** (grinding and polishing valves) to ensure optimal performance and longevity.

5. **Evaluate Long-Term Value** If the vehicle is older or has high mileage, weigh the cost of the head set against the potential return on investment. For daily drivers with moderate mileage, the upgrade is typically justified.

6. **Pair with Other Maintenance** Use the opportunity to replace related components like **spark plugs, wires, fuel injectors, or gaskets** to maximize the engine s performance and reliability.

**Final Verdict:** If your **5.7L GM engine is in decent condition and you re looking to restore performance or prevent future issues**, purchasing and installing a **33417369 cylinder head set** is a smart investment. However, if the engine is critically worn or the vehicle is nearing the end of its useful life, prioritize other repairs or consider alternative options. Always consult a trusted mechanic to ensure the best outcome for your specific situation.

Details:

CBN milled to ensure a super smooth finish. Any type of evidence marine or water craft usage. Any portion of costs related to towing fees, substitute transportation, lodging, personal or property damage, loss income, profit sales. All necessary parts are cleaned and inspected before final assembly to meet AERA specifications.

PCD milled to ensure a super smooth finish. Any type of evidence damage due to overheating, pre-ignition or detonation, abuse, neglect. This is a SET of Rebuilt OE 5.7L / 350 Cylinder Head Assemblies. PCD stands for Poly crystalline Diamond, and is best aluminum heads.

CBN stands for Cubic Boron Nitrite and is best cast-iron heads. Discount prices on quality New Reconditioned Automotive Replacement Part. Re manufacturing Process Includes. Casting #: 33417369,: 5.7L / 350 Cylinder Heads, Note: Surfaced, Pressure Tested, Valve Job.

Valve job Performed with all required angles vacuum tested seals to ensure perfect compression. Any type of alteration to the product such as resurfacing bottom, or installing high performance accessories, etc. Any pre-existing problems related to cooling, carburetion, fuel injection, erg valve, catalytic converter, electrical, computer-sensors, belts, or anything else not mentioned. Installation of incorrect parts.

part #: 33417369 prices

• $41.24-$244.65

specifications cylinderheapar:

• for models: 350
• for makes: Chevrolet, Gmc
• brand: Gm
• mpn: 33417369
• bundle description: 2 Cylinder Heads
• custom bundle: Yes
• fitment type: Direct Replacement
• items included: Valves, Springs, Valve Seals
• material: Cast Iron
• type: Sbc
• manufacturer warranty: 90 Day
• country of origin: Mexico

shipping cylinderheapar:

• cost: $0.00
• type: Fixed
• transit: 2-6 Days
• carrier: UPS
• class: Standard
• service: UPS Ground

returns cylinderheapar:

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

general cylinderheapar:

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

payments cylinderheapar:

• credit card: Diners-club
• other
• wallet: Paypal

seller cylinderheapar:

• # reviews: 21306
• city: Dallas, Texas
• rating: 99.6%

offer cylinderheapar:

• availability: In Stock
• options: Ship-to-home
• started: April 30, 2026
• quantity: 1
• sold: 0

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