3.675 Diverter Valve Tube Nos 7035403 G.m.
fits model: Corvette. year: 1968.
( Brand: General Motors ), ( Manufacturer Part Number: 3.675 ), ( Part Type: Valve Tube Motor ), ( Country Of Origin: United States )
Review GENERAL MOTORS Only Diverter Valve Tube Original G.m. Nos fits CORVETTE 1968
The **1968 Chevrolet Corvette 3.675L (7035403) Diverter Valve Tube** is a meticulously crafted, high-performance component designed exclusively for the iconic **L88 427 cubic-inch V8 engine**, a legendary powerplant renowned for its raw, unfiltered output and racing pedigree. This diverter valve tube, bearing the **GM (General Motors) part number 7035403**, plays a critical role in the engine s **supercharger system**, ensuring precise airflow management and optimal performance under extreme conditions. Crafted from durable **heat-treated steel**, the tube is engineered to withstand the intense pressures and temperatures generated by the L88 s forced induction setup, where supercharger boost levels can exceed **15 psi** in high-performance applications. The diverter valve itself is a precision-machined component, featuring a **sealed, spring-loaded mechanism** that regulates exhaust gas flow, directing it efficiently through the supercharger s turbine housing while minimizing backpressure and maximizing scavenging efficiency. This design is essential for maintaining the L88 s legendary **horsepower potential**, which often exceeds **500 hp** in stock form and can reach even greater figures when modified. The diverter valve tube is a **direct-fit replacement**, compatible with the **1968 Corvette s L88 engine bay layout**, including the **Edelbrock or Holley supercharger configurations** commonly paired with this engine. Its robust construction and seamless integration make it an indispensable part of any **restoration or high-performance rebuild** of a 1968 Corvette L88, ensuring reliability and peak performance on the track or the open road. Whether used in a **showroom-stock restoration** or a **street-racing beast**, this diverter valve tube exemplifies the **precision engineering** that defines GM s most legendary muscle car components.
### **Pros and Cons of Buying a 1968 Chevrolet Corvette Diverter Valve Tube (GM #3.675-7035403)**
#### **Pros:**1. **Performance Enhancement** The diverter valve tube is a critical component in the Corvette s fuel injection system (used in the L88 engine). A functional or restored unit ensures proper fuel distribution, improving throttle response, power delivery, and overall engine performance. Without it, the engine may run poorly or stall.
2. **Restoration Potential** If the tube is damaged or worn, replacing it is a relatively straightforward and cost-effective fix compared to other engine components. Many aftermarket and OEM replacements are available, making restoration feasible for enthusiasts.
3. **Compatibility** This part is specific to the **L88 engine** (the high-performance variant of the 396 cubic inch V8 found in the 1968 Corvette). If you re restoring or maintaining an L88, this tube is essential for proper operation.
4. **Historical Significance** The L88 was one of the most powerful production engines of its time (430 hp in 1967, later increased to 450 hp in 1968). Owning or restoring an authentic part like this adds to the car s heritage value for collectors.
5. **Prevents Further Damage** A failing diverter valve tube can lead to fuel starvation, engine misfires, or even catastrophic failure if left unaddressed. Replacing it early can save money on more extensive repairs.
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#### **Cons:**1. **Age and Wear** The part is over 50 years old, meaning it may be brittle, cracked, or corroded. If sourced from a salvage yard or an untested donor, it could fail prematurely, requiring another replacement.
2. **Difficulty in Sourcing** While aftermarket and OEM replacements exist, finding a **genuine GM part** in perfect condition can be challenging. Some sellers may offer "used" or "rebuilt" units that may not be fully reliable.
3. **Installation Complexity** Replacing the diverter valve tube requires disassembling parts of the fuel injection system, which is labor-intensive. If not done correctly, it could lead to leaks, improper fuel flow, or even damage to surrounding components.
4. **Cost of Replacement** While cheaper than some engine parts, a new or high-quality aftermarket diverter valve tube can cost **$100 $300**, depending on authenticity and condition. Labor costs for installation (if not DIY) will add to the expense.
5. **Potential for Counterfeit Parts** The aftermarket for Corvette parts has grown, but some sellers may offer knockoffs or poorly made replicas. Ensuring the part is genuine (e.g., from a reputable supplier like **Eddie s Corvette Parts, JEGS, or a trusted dealer**) is crucial.
6. **Compatibility Risks** If the tube is not the exact correct fit (e.g., wrong year, engine variant, or fuel injection model), it may not function properly, leading to performance issues or damage.
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### **Conclusion:**Buying a **1968 Chevrolet Corvette L88 diverter valve tube (GM #3.675-7035403)** is a **necessary and beneficial** purchase if you are restoring or maintaining an L88 engine. The part is critical for proper fuel delivery, and its replacement can significantly improve engine performance and reliability. However, the challenges of sourcing a high-quality, authentic part and the labor involved in installation must be carefully considered.
If you are **not experienced with fuel injection systems**, it may be wise to consult a **Corvette specialist or fuel injection expert** before purchasing or installing the part. Additionally, **verifying the part s authenticity and condition** (e.g., checking for cracks, proper machining, and compatibility) is essential to avoid costly mistakes.
### **Recommendation:**- **If restoring an L88 Corvette:** Purchase a **new or high-quality aftermarket diverter valve tube** from a trusted supplier (e.g., **Eddie s Corvette Parts, JEGS, or a reputable dealer**) to ensure reliability.
- **If sourcing a used part:** Inspect it thoroughly for damage, corrosion, or wear. Consider having it professionally inspected before installation.
- **If unsure about installation:** Seek help from a **Corvette fuel injection specialist** to avoid improper fitting, which could lead to engine damage.
- **Budget consideration:** Factor in both the cost of the part and labor (if outsourcing installation) to ensure the project remains financially feasible.
Ultimately, this part is **worth the investment** for L88 enthusiasts, as it directly impacts the engine s performance and longevity. Just ensure you source it responsibly and install it correctly.
Details:
C 3 CORVETTE 1968 ONLY DIVERTER VALVE TUBE, ORIGINAL G.M.
part #: 3675 prices
- $20.00-$68.99
specifications emissyste:
- for models: Corvette
- for years: 1968
- brand: General Motors
- mpn: 3.675
- part type: Valve Tube Motor
- country of origin: United States
general emissyste:
- condition: New
- Car Truck Parts Accessories > Exhaust Emission Systems > Other Exhaust Emission Parts
payments emissyste:
- other
- credit card: Discover
- wallet: Google-pay
seller emissyste:
- rating: 100.0%
- city: Tampa, Florida
- # reviews: 1415
offer emissyste:
- options: Ship-to-home
- started: March 7, 2026
- quantity: 1
- availability: In Stock
- sold: 0
shipping emissyste:
- transit: 5-11 Days
- type: Fixed
- service: USPS Priority Mail
- cost: $6.50
- class: Expedited
- carrier: USPS
returns emissyste:
- time: 30 Days
- paid by: Seller
- policy: Returns Accepted
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