HARLEY-DAVIDSON 24541-70H Engine Restamp Fx

( Brand: Harley-davidson ), ( Manufacturer Part Number: 24541-70H ), ( Part Type: Engine Case )

Review HARLEY DAVIDSON Engine Cases 24541-70 Restamp Look Fx fits SHOVELHEAD CHOPPER BOBBER FL 1972

The **Harley-Davidson 24541-70H 1972 Shovelhead Engine (Restamped FX FL Chopper/Bobber)** is a legendary powerplant that embodies the raw, unfiltered spirit of classic American motorcycle engineering a true relic of an era when Harley-Davidson ruled the open road with brute simplicity and timeless design. This meticulously restored or faithfully reconditioned **70-inch (24541) Shovelhead** engine, originally built between 1972 and 1974, represents one of the most iconic and sought-after Harley-Davidson configurations, particularly among chopper and bobber enthusiasts. The **FX FL** designation hints at its potential heritage, as it was often paired with the iconic **FX Super Glide** or modified into a custom chopper or bobber, where its smooth, torque-rich 74 cubic-inch displacement could be unleashed with minimal restraint. The **restamped** designation ensures authenticity, as the engine bears the original Harley-Davidson markings, including the iconic **H-D logo and serial number**, while being fully rebuilt to factory or near-factory specifications complete with a fresh **cast-iron cylinder head**, **shovel-shaped valve covers** (the hallmark of the Shovelhead era), and a **single-plane crankshaft** that delivers a deep, growling throttle response. The **70-inch crankshaft** (measured from the center of the main bearings) is a key identifier, offering a balance of low-end torque and mid-range punch that was perfect for both cruising and spirited riding. Whether installed in a **custom chopper** with a raked-out frame, a **bobber** stripped down to its essentials, or a **classic FX** with a modern twist, this engine serves as the beating heart of a machine that demands attention its **air-cooled, pushrod-driven** design a testament to Harley-Davidson s golden age of mechanical ingenuity. For the purist, this is more than just an engine; it s a piece of automotive history, a symbol of the **free-spirited, no-nonsense riding culture** that defined the late '60s and '70s, and a powerplant that, when properly tuned and maintained, can still roar with the same unapologetic confidence as the day it left the Milwaukee factory. Whether you re restoring a vintage FX, building a custom chopper, or simply seeking the purest form of Harley-Davidson authenticity, this **restamped Shovelhead** is a masterpiece of mechanical craftsmanship ready to turn heads, ignite passions, and deliver the kind of power that only a true Harley can provide.

Buying a 1972 Harley-Davidson Shovelhead engine (part numbers 24541-70H and 24541-70 restamp) for an FX chopper or bobber build comes with distinct advantages and challenges. Below is a detailed breakdown of the pros and cons, followed by a conclusion and recommendation.

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### **Pros of Buying a 1972 Shovelhead Engine (24541-70H/70 Restamp)**

1. **Classic Shovelhead Design**

The Shovelhead engine (1966 1985) is renowned for its timeless, aggressive styling and robust construction. The "shovel" shape of the valve covers and the distinctive cylinder heads give it a recognizable, vintage look that appeals to enthusiasts. This engine is highly sought after for custom builds, particularly choppers and bobbers, where aesthetics play a significant role.

2. **Proven Reliability and Durability**

The Shovelhead was one of Harley-Davidson s most durable engines of its era. Built with cast-iron construction, it was designed to handle high torque and rough riding conditions. Many examples from the early 1970s have been well-maintained and still run reliably today, especially if sourced from a reputable seller with service records.

3. **Ease of Maintenance and Modifications**

The Shovelhead is relatively straightforward to work on compared to later Harley engines. Parts are widely available, and the design allows for easy modifications such as porting, polishing, and cylinder head work. The engine s simplicity also makes it accessible for DIYers who want to customize their bike.

4. **Strong Secondary Market and Community**

The Shovelhead has a dedicated following, with a thriving aftermarket supporting it. There are numerous forums, clubs, and shops specializing in Shovelhead restorations, parts, and builds. This community provides resources for troubleshooting, finding rare parts, and sharing knowledge, which can be invaluable during a build.

5. **Potential for High Performance**

While not as high-revving as later Harley engines, the Shovelhead can be tuned for improved performance. Aftermarket camshafts, headers, and carburetor upgrades (such as Holley or Mikuni) can enhance throttle response and power. Some builders also experiment with big-bore kits or displacement increases, though these require careful planning.

6. **Nostalgia and Heritage Value**

For many riders, the Shovelhead represents a golden era of Harley-Davidson. Owning one connects you to the brand s history and the culture of classic American motorcycles. This intangible value can be deeply rewarding for enthusiasts who appreciate the craftsmanship and legacy of the era.

7. **Compatibility with Classic Frame and Components**

The 24541-70H (70ci) and 70 restamp engines are designed to fit into the FX frame (introduced in 1972), making them ideal for chopper or bobber builds. The engine s compact size and classic proportions work well with modern custom frames, allowing for creative geometry and styling.

8. **Lower Cost of Ownership (Compared to Later Engines)**

While parts for the Shovelhead can be expensive due to their vintage nature, the engine itself is often more affordable than later Harley engines (e.g., Evolution or Twin Cam). Labor costs for maintenance may also be lower if you have access to a mechanic familiar with Shovelhead work.

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### **Cons of Buying a 1972 Shovelhead Engine (24541-70H/70 Restamp)**

1. **Age and Wear**

A 1972 engine, even if well-maintained, will have significant mileage (likely 30,000 miles) and may show signs of wear. Common issues include worn camshafts, lifters, pushrods, and valve guides. The bearings, crankshaft, and rod bearings may also be near the end of their lifespan. A pre-purchase inspection (PPI) is critical to assess the engine s condition.

2. **High Maintenance Requirements**

The Shovelhead is not a "set it and forget it" engine. It requires regular maintenance, including valve adjustments (every 1,000 2,000 miles), oil changes (every 500 1,000 miles), and periodic inspections of critical components. Neglect can lead to costly failures, such as seized valves or a blown head gasket.

3. **Part Availability and Cost**

While parts are available, some components particularly rare or discontinued items can be difficult and expensive to source. For example, original Shovelhead carburetors (like the Amal or Mikuni) may require aftermarket replacements, and cylinder heads can be costly to restore. The restamp engines (introduced in 1974) are slightly more modern but still face part shortages compared to newer Harleys.

4. **Fuel and Emissions Challenges**

The Shovelhead is a carbureted, air-cooled engine designed for leaded gasoline. Modern unleaded fuel can cause lead deposits in the combustion chamber, leading to pre-ignition or "knocking." Some builders use fuel additives or run the engine on leaded gas (if available), adding complexity to ownership. Additionally, the engine does not meet modern emissions standards, which can complicate registration or insurance in some areas.

5. **Limited Performance Capabilities**

The Shovelhead is not a high-revving engine. Its peak power typically occurs around 4,000 5,000 RPM, which can feel sluggish compared to modern bikes. While tuning can improve performance, the engine lacks the refinement and power of later Harley designs. For riders seeking high-speed performance, a Shovelhead may feel underpowered.

6. **Rust and Corrosion Risks**

Many vintage Harley engines, especially those from the 1970s, suffer from rust due to poor storage or exposure to moisture. The crankcase, cylinder barrels, and other metal components may require extensive cleaning and treatment. Rust can weaken structural integrity and lead to leaks or failures.

7. **Build Complexity**

Integrating a Shovelhead into a modern chopper or bobber frame requires careful planning. The engine s weight distribution, exhaust routing, and electrical systems may need adjustments to fit contemporary ergonomics and safety standards. This can add to the build s complexity and cost.

8. **Resale Value and Depreciation**

While the Shovelhead has a cult following, its resale value is not as strong as newer Harley engines. Custom builds with Shovelhead engines may depreciate faster, especially if they are heavily modified or lack original components. Buyers should be prepared for the possibility of a lower return on investment.

9. **Noise and Vibration**

The Shovelhead is a loud and vibration-heavy engine, particularly at lower RPMs. The lack of modern balancing and sound insulation means the ride can be rough, especially on rough roads. This may not be ideal for daily riding or long-distance trips.

10. **Legal and Insurance Considerations**

Some states or countries have restrictions on vintage motorcycles, particularly those without modern safety features (e.g., ABS, modern lighting). Insurance for a Shovelhead build may be more expensive or difficult to obtain, depending on the region. Always check local regulations before purchasing.

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### **Conclusion**

Buying a 1972 Harley-Davidson Shovelhead engine (24541-70H or 70 restamp) for an FX chopper or bobber is a rewarding but challenging endeavor. The engine offers unmatched classic styling, durability, and a strong community of supporters, making it ideal for riders who prioritize heritage and customization. However, its age, maintenance demands, and potential for hidden issues require careful consideration. The Shovelhead is best suited for enthusiasts who are prepared for high maintenance, enjoy the build process, and appreciate the engine s character over modern convenience.

If you are willing to invest time, money, and effort into restoring, modifying, and maintaining the engine, the Shovelhead can be a fantastic choice for a one-of-a-kind chopper or bobber. However, if you seek a low-maintenance, high-performance, or daily-ridable motorcycle, a more modern Harley or a different vintage engine (such as a Twin Cam or a restored Evolution) may be a better fit.

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### **Recommendation**

- A clean bill of health from a reputable mechanic.

- Original or restored components (e.g., polished cylinders, new gaskets, and updated carburetors).

- A seller who provides service records or proof of recent maintenance.

Budget for **$3,000 $6,000 ** depending on condition and rarity.

Consider a **restored or rebuilt Shovelhead** from a trusted dealer or builder. This eliminates many of the unknowns and ensures the engine is in optimal condition. Alternatively, explore a **Twin Cam or Evolution engine** for a balance of classic styling and modern reliability.

Pair the Shovelhead with a **modern frame or a well-maintained vintage FX frame**. Focus on **lightweight materials, custom suspension, and

Details:

Looks like these engine cases were possibly new old stock and stamped at Cal products years ago. Looks like these cases were blasted and cleaned ready for assembly. The belly numbers are kind of hard to read, but they match and say 1972.

part #: 2454170h prices

• $400.00-$700.00

specifications cyclevintagee:

• for models: Chopper, Bobber, Fl, Shovelhead
• for makes: Harley
• for years: 1972
• brand: Harley-davidson
• mpn: 24541-70h
• part type: Engine Case

general cyclevintagee:

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

returns cyclevintagee:

• policy: No Returns

offer cyclevintagee:

• availability: In Stock
• sold: 0
• best offers: True
• options: Ship-to-home
• quantity: 1
• started: May 23, 2026

payments cyclevintagee:

• wallet: Paypal
• other
• credit card: Mastercard

seller cyclevintagee:

• city: Canton, Connecticut
• # reviews: 3044
• rating: 100.0%

shipping cyclevintagee:

• service: USPS Ground Advantage
• transit: 6-12 Days
• type: Fixed
• class: Standard
• carrier: USPS
• cost: $54.00

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