
9780S Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $125.00 | Condition is Used, 454 Mercruiser Gen V/5 Carb, shipping cost = $25.00 | 100.0% |
![]() | $250.00 | Condition is Used, Mercruiser 454 7.4l Carb and Arrestor V8, shipping cost = $16.63 | 100.0% |

The Mercruiser 9780s Weber 4bbl carburetor marine engine is a powerful and efficient solution for those seeking high-performance boating experiences. This engine is part of the renowned 7.4L 454 V8 series, which is known for its reliability and durability.
The engine is equipped with a Weber 4-barrel carburetor system, which delivers an optimal air-fuel mixture for efficient combustion. The four carburetors ensure a smooth and responsive power delivery across the entire RPM range, providing thrilling acceleration and impressive top-end speed.
The Mercruider 9780s engine boasts a displacement of 7.4 liters and a V8 cylinder configuration. This configuration delivers a powerful 350 horsepower at 5000 RPM, making it an excellent choice for larger boats or those seeking a more dynamic boating experience.
Additionally, this engine comes with several advanced features, including electronic fuel injection (EFI) compatibility, which allows for easy conversion to EFI should the boat owner desire a more modern and maintenance-free fuel delivery system. The engine also features a water-cooled design, which helps to maintain optimal operating temperatures, ensuring consistent performance and extended engine life.
The Mercruiser 9780s Weber 4bbl carburetor marine engine is built to the highest standards of quality and durability, with a corrosion-resistant aluminum alloy block and a high-strength crankshaft. The engine also comes with a heavy-duty accessory drive system, which can handle the demands of high-performance boating accessories.
This engine is not only powerful and efficient but also environmentally friendly. It complies with the latest emission regulations, making it an excellent choice for those seeking a high-performance yet eco-friendly boating experience. Whether you're cruising the open waters, fishing, or watersports, the Mercruiser 9780s Weber 4bbl carburetor marine engine is the ideal power source to propel you to your destination with speed and style.
The Mercruiser 9780s Weber 4bbl carburetor marine 7.4l 454 V8 engine is a powerful and popular choice for recreational boats. Here are some pros and cons that might help in making a decision:
Pros:1. Powerful: This engine delivers impressive power and torque, making it ideal for boats used for water sports, towing, or heavy loads.
2. Reliability: Weber carburetors have a reputation for durability and reliability, which is essential for marine applications.
3. Fuel Efficiency: For a high-performance engine, it is relatively fuel-efficient, which can save boat owners money in the long run.
4. Easy to Maintain: The carburetor design is simpler than fuel injection systems, making it easier and less expensive to maintain.
5. Throttle Response: Carburetors offer better throttle response than fuel injection systems, which can improve the overall driving experience.
Cons:1. Complexity: Carburetors can be more complex to tune and adjust than fuel injection systems, which can be a challenge for some boat owners.
2. Emissions: Carburetors emit more pollutants than fuel injection systems, which can be a concern for those who prioritize environmental sustainability.
3. Fuel Quality: This engine requires high-quality fuel to run efficiently and effectively, which can be a concern for boat owners in areas with poor fuel quality.
4. Weight: The carburetor design adds weight to the engine, which can be a concern for boat owners looking to minimize weight.
Ending Conclusion:The Mercruiser 9780s Weber 4bbl carburetor marine 7.4l 454 V8 engine is an excellent choice for boat owners who prioritize power, reliability, and ease of maintenance. However, it comes with some drawbacks, such as complexity, emissions, fuel quality concerns, and weight. Ultimately, the decision to buy this engine depends on an individual's priorities and preferences.
Recommendation:If you prioritize power, reliability, and ease of maintenance, the Mercruiser 9780s Weber 4bbl carburetor marine 7.4l 454 V8 engine is an excellent choice. However, if you prioritize fuel efficiency, simplicity, and environmental sustainability, you may want to consider a fuel injection system instead. It's essential to weigh the pros and cons carefully and consult with a marine engine expert to make an informed decision.
Details:
Remanufactured using ethanol safe parts base has been resurfaced to eliminate any war page. Includes base gasket, flame arrest throttle linkage stud and nut. For sale is a very nice remanufactured mercury Mercruiser 9780S 7.4 v8 454 electric choke carburetor, this not Chinese remake actual oem carburetor tested and adjusted so installation should require minimal to no adjustment.
specifications inboardfuel:
- for models: Marine, 454
- brand: Mercruiser
- mpn: 9780s
- part type: Carburetor Engine
seller inboardfuel:
- city: orlando, florida
- # reviews: 818
- rating: 100.0%
shipping inboardfuel:
- class: expedited
- transit: 4-8 days
- service: usps priority mail
- carrier: usps
- type: calculated
general inboardfuel:
- category: Boat Parts > Inboard Engines Components > Intake Fuel Systems
payments inboardfuel:
- credit card: diners-club
- other
- wallet: paypal
returns inboardfuel:
- policy: no returns
offer inboardfuel:
- best offers: true
- availability: in stock
- in stock #: 2
- sold #: 15
- prices: $125.00–$250.00
- item condition: Used
- started: july 10, 2025
- options: ship-to-home
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