1. Antique, Vintage, Historic Motorcycle Parts For Sale
  2. sku: 21950272509572741
  3. HARLEY DAVIDSON 17511-6SC

HARLEY-DAVIDSON 17511-6SC Engine Cylinder

fits model: Shovelhead, Panhead. make: Harley. year: 1968–1978.

17511-6sc Harley-davidson 1968 To 1978 Shovelhead Panhead Engine Cylinder Assembly

( Brand: Harley-davidson ), ( Manufacturer Part Number: 17511-6SC ), ( Part Type: Engine Cylinder ), ( Vintage Part: Yes ), ( Placement On Vehicle: Front ), ( Performance Part: No )

Review HARLEY DAVIDSON To Engine Cylinder Assembly fits SHOVELHEAD PANHEAD 1968–1978

The **Harley-Davidson 17511-6SC (1968 1978 Shovelhead Panhead Engine Cylinder)** is a meticulously crafted, high-performance component designed for enthusiasts seeking to restore, modify, or upgrade their classic Shovelhead-powered Harley-Davidson motorcycles. This genuine OEM cylinder represents the heart of Harley s legendary 45-degree V-twin architecture, engineered between 1968 and 1978 under the iconic Panhead and early Shovelhead eras. Crafted from premium cast iron, the cylinder features a robust, ribbed design that ensures durability while maintaining the signature Harley-Davidson aesthetic distinguished by its smooth, rounded head and the distinctive "shovelhead" valve cover shape that became a hallmark of the era. The 17511-6SC model is specifically tailored for the **1968 1978 Shovelhead engines**, offering a perfect fit for both stock and modified applications, including those with aftermarket upgrades like forged pistons, high-performance cams, or custom cylinder heads. This cylinder is built to exacting specifications, including precise bore measurements and a polished bore surface for optimal piston sealing and longevity. Whether used in a full restoration, a high-mileage rebuild, or a performance-focused modification, this component delivers the reliability and character that Harley-Davidson riders have come to expect. Its compatibility with classic fuel systems and carburetion setups such as the iconic Amal or Mikuni units ensures seamless integration with the broader Shovelhead ecosystem, making it an essential part for any rider preserving or enhancing the spirit of these legendary machines.

### Pros and Cons of Buying a Harley-Davidson 17511-6SC (1968 1978 Shovelhead Panhead Engine Cylinder)

#### **Pros:**

1. **Classic Harley-Davidson Heritage** The Shovelhead engine (1966 1978) is one of the most iconic Harley-Davidson powerplants, known for its timeless design and strong following among enthusiasts. Owning a part from this era means you re preserving a piece of motorcycle history.

2. **High Demand for Restoration and Replacement** Due to its popularity, finding compatible parts, rebuild kits, and restoration services is relatively straightforward. The Shovelhead community is active, with many aftermarket and OEM suppliers still supporting it.

3. **Potential for High Resale Value** If well-maintained or restored, a Shovelhead cylinder can hold value, especially in the classic motorcycle market. Some collectors and restorers pay premium prices for original or high-quality aftermarket parts.

4. **Durability and Reliability (When Properly Maintained)** The Shovelhead was built to last, and with regular upkeep, it can provide decades of service. Many examples still run strong today, especially in cruisers and touring bikes.

5. **Customization Opportunities** The Shovelhead is a favorite for modifications, including porting, blueprinting, and performance upgrades. The aftermarket offers a wide range of cylinder heads, pistons, and camshafts to enhance power and reliability.

6. **Lower Cost Than Modern Harley Parts** Compared to newer Harley-Davidson engines (like Evolution or Twin Cam), Shovelhead parts are often more affordable, making them accessible for budget-conscious buyers.

7. **Nostalgia and Passion-Driven Market** Many buyers purchase Shovelhead parts out of passion rather than purely functional needs. This can lead to unique finds and a more engaging buying experience for collectors.

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#### **Cons:**

1. **Age-Related Wear and Potential Issues** Cylinders from this era may show signs of wear, such as scoring, pitting, or warping, especially if the engine was not well-maintained. A thorough inspection is essential to avoid hidden problems.

2. **Limited Availability of Original Parts** While not as scarce as some older Harley parts, original Shovelhead cylinders may be harder to find in perfect condition. Many have been rebuilt or repurposed, which can affect authenticity.

3. **Maintenance Requirements** Shovelhead engines require more frequent upkeep than modern Harley-Davidsons, including valve adjustments, camshaft inspections, and rod bearing checks. Neglect can lead to costly repairs.

4. **Compatibility Concerns** While widely compatible with 1966 1978 Harley-Davidsons, mixing parts from different years or models (e.g., 45ci vs. 74ci) can cause fitment issues. Ensure the cylinder matches your bike s specifications.

5. **Environmental and Emissions Challenges** Older Harley-Davidsons were not built with modern emissions standards in mind. Running a Shovelhead in some regions may require modifications (like catalytic converters or EFI conversions) to meet current regulations.

6. **Higher Risk of Counterfeit or Rebuilt Parts** Due to their popularity, some Shovelhead cylinders may be rebuilt, reconditioned, or even counterfeit. Always verify the part s history and condition before purchasing.

7. **Longer Repair Times** Finding a mechanic experienced with Shovelheads can be difficult in some areas. Restorations may take longer than with newer engines, increasing downtime.

8. **Potential for Hidden Damage** Without a professional inspection, issues like cracked casings, seized pistons, or worn-out bearings may not be immediately obvious. A pre-purchase inspection is highly recommended.

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### **Conclusion:**

Buying a Harley-Davidson 17511-6SC Shovelhead cylinder (1968 1978) can be a rewarding experience for collectors, restorers, or enthusiasts who appreciate classic Harley-Davidson engineering. The part s historical significance, customization potential, and strong aftermarket support make it a desirable choice. However, potential buyers must be prepared for age-related challenges, higher maintenance demands, and the need for careful inspection to avoid costly surprises.

If you re purchasing for a **restoration project** or **performance upgrade** and are willing to invest time in maintenance, this cylinder is an excellent investment. If you re looking for a **quick, hassle-free replacement** with minimal long-term concerns, a newer Harley-Davidson part (like an Evolution or Twin Cam) may be a more practical choice.

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### **Recommendation:**

- **Buy if:** You re restoring a classic Harley-Davidson, enjoy working on vintage engines, or want a high-quality aftermarket replacement with strong resale potential. Prioritize purchasing from reputable sellers (e.g., Harley-Davidson dealers, trusted private parties, or well-reviewed online marketplaces) and have the cylinder inspected by a Shovelhead specialist.

- **Avoid if:** You need a part for a daily rider without restoration plans, are unable to commit to regular maintenance, or prefer modern reliability over classic charm.

- **Alternative Considerations:** If budget allows, explore **aftermarket Shovelhead cylinders** (e.g., from brands like **Harley-Davidson Performance Parts, J&P Cycles, or Race Cycle**) for better condition guarantees. For a balance of reliability and cost, a **used but well-documented** cylinder is preferable to a suspect original.

Always verify the part s history, condition, and compatibility before purchasing to ensure it meets your needs.

Details:

Manufactured between 1968-1978, this cylinder assembly is a genuine Harley-Davidson part, making it valuable addition for collectors or enthusiasts looking to maintain the authenticity of their bike. The Harley Davidson 1968 to 1978 Shovelhead Panhead engine cylinder assembly is a vintage part designed specifically for Harley-Davidson motorcycles.

part #: 175116sc price

  • $500.00

specifications cyclevintagee:

  • for models: Shovelhead, Panhead
  • for makes: Harley
  • for years: 1968-1978
  • brand: Harley-davidson
  • mpn: 17511-6sc
  • part type: Engine Cylinder
  • vintage part: Yes
  • placement on vehicle: Front
  • performance part: No

shipping cyclevintagee:

  • cost: $17.07
  • service: UPS Ground
  • transit: 3-6 Days
  • class: Standard
  • carrier: UPS
  • type: Calculated

seller cyclevintagee:

  • rating: 100.0%
  • city: Council Bluffs, Iowa
  • # reviews: 1

offer cyclevintagee:

  • availability: In Stock
  • options: Ship-to-home
  • sold: 0
  • quantity: 1
  • started: April 24, 2026

general cyclevintagee:

  • condition: Used
  • Parts Accessories > Motorcycle Scooter Parts Accessories > Other Motorcycle Scooter Parts Accessories

payments cyclevintagee:

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

returns cyclevintagee:

  • policy: No Returns
for models: shovelhead, panhead, for makes: harley, for years: 1968-1978, part type: engine cylinder, vintage part: yes, placement on vehicle: front, performance part: no,
category: motorcycle parts > motorcycle scooter parts accessories, sku: 21950272509572741,
Harley-davidson 17511-6SC Is Similar To:
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1 offer $500.00 USD
  • Used. Offer #1 priced at $500.00 + $17.75 shipping estimate = $517.75* total. Manufactured between 1968-1978, this cylinder assembly is a genuine Harley-Davidson part, making it a valuable addition for collectors or enthusiasts looking to maintain the authenticity of their bike The Harley Davidson 1968 to 1978 Shovelhead Panhead engine cylinder assembly is a vintage part designed specifically for Harley-Davidson motorcycles.+$17.75 shipping

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