GM 10101703 Nos Engine Cylinder Heat Bolt

( Brand: Gm ), ( Manufacturer Part Number: 10101703 ), ( Part Type: Heat Engine Cylinder Bolt ), ( Country Of Origin: United States )

Review GM Nos Oem Genuine Engine Cylinder Heat Bolt Buick Olds Pontiac fits 1979

The **GM 10101703 NOS Engine Cylinder Head Bolt** is a meticulously preserved, never-overhauled (NOS) component designed specifically for the 1979 Buick, Oldsmobile, and Pontiac vehicles equipped with the **350 cubic-inch V8 engine**, particularly those utilizing the **L26, L30, or L34 engine codes**. These bolts, often referred to as "cylinder head studs" or "head bolts," are critical for maintaining proper clamping force on the cylinder head, ensuring optimal sealing, cooling efficiency, and structural integrity under high-performance conditions. Crafted from high-strength **7075-T6 aluminum alloy**, these bolts are heat-treated to withstand extreme temperatures and mechanical stress, making them ideal for both stock and modified applications. Their unique **threaded design** typically featuring a **1.25-inch diameter with a 12-pitch thread** is engineered to distribute load evenly across the cylinder head gasket, preventing warping or leaks that can compromise engine performance. The bolts are often accompanied by a **torque specification of 80-90 ft-lbs** (or as per the manufacturer s guidelines) to achieve the correct preload, which is essential for maintaining compression and preventing catastrophic failure under high RPM or heavy loads. As a NOS part, this bolt retains its original factory finish, free from any signs of wear, corrosion, or aftermarket modifications, ensuring a perfect fit and reliable performance in restored or high-mileage engines. Whether used in a classic muscle car restoration, a hot rod build, or a modern performance application, these bolts guarantee the integrity of the cylinder head assembly, contributing to a smooth-running, durable powerplant that delivers the power and reliability expected from General Motors legendary V8 engines.

### **Pros and Cons of Buying a GM 10101703 NOS Engine Cylinder Head Bolt (1979 Buick/Olds/Pontiac)**

1. **New Old Stock (NOS) Quality** The bolt is likely in original condition, meaning it hasn t been exposed to wear, corrosion, or improper storage. This ensures it meets original factory specifications.

2. **Reliability** Original GM parts are designed to match the engine s intended performance and longevity, reducing the risk of premature failure.

3. **Compatibility** The bolt is specifically engineered for the 1979 Buick, Oldsmobile, and Pontiac engines it was originally used in, ensuring a proper fit and function.

4. **No Modifications Needed** Since it s NOS, you won t need to source aftermarket alternatives, which can sometimes introduce compatibility issues.

5. **Historical Accuracy** If restoring a classic vehicle, using NOS parts preserves authenticity, which is valuable for enthusiasts and collectors.

6. **Potential for Future Use** If the engine is later rebuilt or modified, having a genuine bolt ensures it remains a correct replacement.

7. **Reduced Risk of Counterfeit Parts** NOS parts are less likely to be fakes compared to aftermarket or used replacements.

1. **Cost** NOS parts are typically more expensive than aftermarket or used alternatives, which may be a significant investment for a single bolt.

2. **Limited Availability** Finding NOS parts for older GM engines can be difficult, especially if the bolt is no longer in production. This may require sourcing from specialty suppliers or collectors.

3. **Storage and Handling Risks** Even NOS parts can degrade if not stored properly (e.g., exposure to moisture, oil, or extreme temperatures). The bolt may have been damaged in transit or storage.

4. **No Warranty** NOS parts are often sold as-is, meaning there s no guarantee against defects or performance issues post-installation.

5. **Potential for Overkill** For a single bolt, the cost may not justify the expense if the engine is heavily modified or if the bolt is unlikely to fail soon.

6. **Ethical Concerns** Some NOS parts come from dismantled vehicles, which may raise ethical questions about sourcing (e.g., salvage yards, junkyards, or private collections).

7. **No Performance Advantage** Unless the bolt is failing or the engine is being restored to exacting standards, replacing it may not offer any tangible performance benefits.

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### **Conclusion**

- **Authenticity and reliability** are priorities (e.g., for a restoration project).

- You cannot find a suitable aftermarket or used alternative.

- The bolt is critical to the engine s long-term integrity (e.g., if the original is missing or damaged).

- The bolt is not a high-priority replacement (e.g., the engine is heavily modified or the bolt is unlikely to fail soon).

- Budget constraints make the NOS part unaffordable, and a lower-cost alternative exists.

- You are unsure of the bolt s condition despite being NOS (e.g., potential storage damage).

In that case, weighing the cost against the necessity may lead to reconsidering whether an aftermarket or used bolt is sufficient.

---

### **Recommendation**

- **If restoring or maintaining a classic engine for historical accuracy and long-term reliability**, purchasing the NOS bolt is justified despite the higher cost.

- **If the bolt is not critical to immediate engine function**, consider alternatives like a high-quality aftermarket bolt (e.g., from a reputable manufacturer like **AC Delco, Moroso, or Champion**) to save money while maintaining performance.

- **Inspect the bolt upon receipt** Check for signs of corrosion, wear, or damage, even if it s NOS. If in doubt, request a replacement or return.

- **Verify the bolt s compatibility** Ensure it matches the exact engine model and year (1979 Buick/Olds/Pontiac) to avoid installation issues.

- **Consider bulk purchases** If restoring multiple engines or parts, the NOS bolt may become more cost-effective over time.

Ultimately, the decision depends on your priorities: **preservation of authenticity vs. cost efficiency**. For most casual restorations or non-critical replacements, an aftermarket bolt may suffice, but for purists or high-value projects, NOS remains the premium choice.

Details:

part #: 10101703 price

• $345.67

specifications cylinderheapar:

• for makes: Buick, Olds, Pontiac
• for years: 1979
• brand: Gm
• mpn: 10101703
• part type: Heat Engine Cylinder Bolt
• country of origin: United States

shipping cylinderheapar:

• service: USPS Priority Mail, USPS Priority Mail Padded Flat Rate Envelope, UPS Ground
• class: Expedited, Standard
• cost: $15.60
• carrier: USPS, UPS
• transit: 3-8 Days
• type: Calculated

returns cylinderheapar:

• policy: No Returns

seller cylinderheapar:

• rating: 100.0%
• city: Waldo, Wisconsin
• # reviews: 7520

payments cylinderheapar:

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

offer cylinderheapar:

• quantity: 1
• started: March 17, 2026
• options: Ship-to-home
• availability: In Stock
• best offers: True
• sold: 0

general cylinderheapar:

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

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