1. Antique, Vintage, Historic Motorcycle Parts For Sale
  2. sku: 21088956780186632
  3. HONDA 11000-374-000

HONDA 11000-374-000 Engine Crankcase Set Block Cylinder Stud Bolts

fits model: Cb550, Cb, 550. make: Honda. year: 1974–1978.

11000-374-000 Honda 74 78 Cb550 Cb 550 Engine Crankcase Set Block Cylinder Stud Bolts

( Manufacturer Part Number: 11000-374-000 ), ( Part Type: Engine Block Cylinder Bolt ), ( Country Of Origin: Japan )

Review HONDA Engine Crankcase Set Block Cylinder Stud Bolts fits CB550 CB 550 1974–1978

The **Honda 11000-374-000 74-78 CB550 Engine Crankcase Set**, featuring the **Cylinder Block and Stud Bolts**, represents a meticulously engineered replacement component designed to restore peak performance and reliability to the iconic 1974-1978 Honda CB550 motorcycle. This high-quality aftermarket assembly is crafted to exact factory specifications, ensuring a seamless fit and optimal functionality for the engine s critical lower end. The **crankcase set** includes a precision-machined aluminum block, forged from durable, heat-treated material to withstand the demanding stresses of high-revving performance and prolonged use. The **cylinder head stud bolts**, specifically engineered for the CB550 s combustion chamber, are made from hardened steel and feature a fine-thread design to maintain consistent compression and prevent warping under extreme heat. Together, these components form a robust foundation for the engine s crankshaft, connecting rod, and piston assembly, delivering the power and durability expected from Honda s legendary air-cooled inline-four architecture. Whether restoring an original CB550 to its former glory or upgrading an existing build, this crankcase set ensures a tight, leak-free seal and proper alignment, critical for maintaining engine integrity and longevity. Ideal for both professional mechanics and dedicated enthusiasts, this genuine replacement part adheres to Honda s original engineering standards, providing a reliable solution for those seeking to revive or enhance the performance of their classic CB550.

### **Pros and Cons of buying a Honda 11000-374-000 (CB550F/CB550 Engine Crankcase Set, Block, Cylinder, Stud Bolts)**

#### **Pros:**

1. **OEM Quality and Reliability** Honda is known for durable, high-quality parts. This crankcase set is designed to match the original specifications of the CB550 engine, ensuring proper fitment and longevity.

2. **Complete Replacement Set** The package includes the crankcase halves, cylinder block, cylinder, and stud bolts, which means you won t need to source additional components separately.

3. **Compatibility with CB550 Models** This part is specifically engineered for the CB550F and CB550 engines, reducing the risk of mismatches or compatibility issues.

4. **Potential Performance Benefits** If the original components were worn or damaged, replacing them with a new set can restore engine efficiency, reduce oil consumption, and prevent leaks.

5. **Prevents Future Engine Issues** A failing crankcase or cylinder can lead to catastrophic engine failure. Replacing these parts proactively can save money on major repairs down the line.

6. **Easier Installation with New Stud Bolts** The included stud bolts ensure proper torque specifications, reducing the risk of bolt failure during operation.

7. **Aftermarket Support** Honda s OEM parts are widely available, and mechanics familiar with Honda engines can assist with installation.

#### **Cons:**

1. **High Cost** OEM Honda parts are typically more expensive than aftermarket alternatives. Depending on the market, this set could be a significant investment.

2. **Limited Availability** If you re restoring an older CB550, finding this exact part may require ordering from a specialty Honda parts distributor, which could take time.

3. **Installation Complexity** Replacing the crankcase and cylinder requires mechanical skill, specialized tools (like a crankcase press), and possibly a torque wrench for proper bolt tightening. DIYers may need professional help.

4. **Potential for Overkill** If the engine is otherwise in good condition, replacing just the crankcase and cylinder may be unnecessary. A thorough inspection by a mechanic could determine if only specific parts (e.g., just the cylinder) need replacement.

5. **Warranty Considerations** If the engine was under warranty when the issue arose, OEM replacement may not be covered, making aftermarket options more cost-effective.

6. **Weight and Bulk** Shipping a heavy crankcase set can be expensive, especially if you re not already near a Honda dealer or parts store.

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### **Conclusion**

Buying the **Honda 11000-374-000 crankcase set** is a strong choice if you need a **direct OEM replacement** for a failing CB550 engine. The benefits in terms of **reliability, fitment, and long-term performance** outweigh the higher cost for most serious riders or restorers. However, if budget is a concern or the engine has only minor issues, an **aftermarket alternative** (from reputable brands like **Yamaha, Suzuki, or specialized manufacturers**) could be a more economical option provided it meets OEM specifications.

For **DIY enthusiasts**, weigh the **installation difficulty** against your mechanical experience. If unsure, consulting a **Honda specialist** before purchasing is advisable.

### **Recommendation:**

- **If restoring or replacing a severely worn CB550 engine** **Proceed with the OEM Honda part** for peace of mind and longevity.

- **If the engine has minor issues and budget is tight** **Consider a high-quality aftermarket equivalent** (e.g., **Yamaha 2000-series crankcases** or **specialty manufacturers like **Crankcase Specialties**).

- **If unsure about the engine s condition** **Have a mechanic inspect it first** to determine if a full crankcase replacement is necessary or if partial repairs (e.g., just the cylinder) suffice.

Ultimately, **prioritize quality and fitment** whether OEM or aftermarket over cost alone to avoid future engine problems.

Details:

Honda CB550 a 550 four 1974. YOU ARE VIEWING A CRANKCASE SET WITH CYLINDER STUD BOLTS THAT HAS BEEN REMOVED FROM HONDA CB550 UNKNOWN MILEAGE. HONDA 1974 CB550 A 550 FOUR CRANKCASE OIL FILTER.

part #: 11000374000 prices

  • $99.99-$152.99

specifications cyclevintagee:

  • for models: Cb550, Cb, 550
  • for makes: Honda
  • for years: 1974-1978
  • mpn: 11000-374-000
  • part type: Engine Block Cylinder Bolt
  • country of origin: Japan

returns cyclevintagee:

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

shipping cyclevintagee:

  • class: Standard
  • service: UPS Ground
  • transit: 3-7 Days
  • cost: $64.99
  • carrier: UPS
  • type: Fixed

payments cyclevintagee:

  • other
  • cash
  • credit card: Visa
  • wallet: Apple-pay

general cyclevintagee:

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

offer cyclevintagee:

  • best offers: True
  • sold: 0
  • quantity: 1
  • availability: In Stock
  • started: March 11, 2026
  • options: Ship-to-home

seller cyclevintagee:

  • # reviews: 21032
  • rating: 99.9%
  • city: Milwaukee, Wisconsin
for models: cb550, cb, 550, for makes: honda, for years: 1974-1978, part type: engine block cylinder bolt, country of origin: japan,
category: motorcycle parts > motorcycle scooter parts accessories, sku: 21088956780186632,
Honda 11000-374-000 Is Similar To:
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5 offers $99.99–$152.99 USD
  • Used. Offer #1 priced at $152.99 + $0.00 shipping estimate = $152.99* total. Lots of rusty parts engine internals are in good shape. Engine was Stuck from Sitting outside for years.FREE SHIPPING
  • Used. Offer #2 priced at $116.99 + $0.00 shipping estimate = $116.99* total. A couple of the thread housings are cracked or chipped. This item is in FAIRLY GOOD condition.FREE SHIPPING
  • Used. Offer #3 priced at $99.99 + $64.99 shipping estimate = $164.98* total. honda cb550 a 550 four 1974. YOU ARE VIEWING A CRANKCASE SET WITH CYLINDER STUD BOLTS THAT HAS BEEN REMOVED FROM A HONDA CB550 WITH UNKNOWN MILEAGE.+$64.99 shipping
  • Used. Offer #4 priced at $60.00 + $20.00 shipping estimate = $80.00* total. +$20.00 shipping
  • For parts or not working. Offer #5 priced at $60.00 + $20.00 shipping estimate = $80.00* total. +$20.00 shipping

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