MerCruiser 540 BRAVO 450 HP (8M0113304) – High-Powerful and Reliable V8 Engine for High-Performance Boating
The MerCruiser 540 BRAVO 450 HP (8M0113304) is a high-performance, partially dressed V8 marine engine built for exceptional power, durability, and efficiency. Designed for MerCruiser Bravo and Hi-Performance sterndrive applications, this engine delivers 450 horsepower at 4600-5000 RPM, ensuring strong acceleration and top-tier marine performance.
Built with a Quicksilver iron engine block, Dart iron cylinder heads, 800 CFM 4-barrel Holley carburetor, and forged steel rods, this inboard MerCruiser engine is engineered to provide high torque, smooth operation, and longevity, making it the perfect choice for boaters looking to upgrade their inboard boat motor.
Key Features & Benefits
Unmatched Power & Acceleration
- 450 HP @ 4600-5000 RPM – Designed for high-performance marine applications.
- 540 Cubic Inch Displacement – Provides greater power output and torque than standard MerCruiser inboard motors.
- 800 CFM 4-Barrel Holley Carburetor – Ensures precise fuel delivery and optimal performance.
Durable & Marine-Optimized Construction
- Quicksilver Iron Engine Block & 4-Bolt Main Block – Built for maximum durability and longevity.
- 4340 Forged Steel Crankshaft & Forged Steel Rods – Enhances strength and performance under high loads.
- Roller Camshaft & 2.25″ Stainless Steel Intake Valves – Provides smoother operation and extended engine life.
Fuel Efficiency & Smart Ignition Technology
- Thunderbolt V Ignition with Knock Control – Ensures accurate ignition timing for better fuel efficiency and performance.
- Mechanical Fuel Pump – Provides steady fuel delivery in all conditions.
- 9.0:1 Compression Ratio Forged Pistons – Optimized for fuel efficiency and power balance.
Cooling & Exhaust System
- Circulating Water Pump & Engine Oil Cooler – Keeps engine temperatures regulated for improved reliability and performance.
- Fuel Pump Mounted to Sea Water Pump – Enhances cooling efficiency for extended durability.
Versatile Repower Compatibility
- Perfect for replacing older carbureted V8 MerCruiser Bravo & Hi-Performance sterndrive applications.
- Compatible with multiple marine setups and adaptable to various inboard boat motor configurations.
Technical Specifications
| Specification | Details |
|---|---|
| Power Output | 450 HP @ 4600-5000 RPM |
| Displacement | 540 cu in |
| Engine Type | V8 Marine Engine |
| Fuel System | 800 CFM 4-Barrel Holley Carburetor |
| Compression Ratio | 9.0:1 |
| Crankshaft Material | 4340 Forged Steel |
| Camshaft Type | Roller Camshaft |
| Cylinder Heads | Dart Iron Heads |
| Valve Size | 2.25″ Intake |
| Rocker Arm Ratio | 1.7:1 Roller Rocker Arms |
| Ignition System | Thunderbolt V with Knock Control |
| Fuel Pump | Mechanical |
| Cooling System | Circulating Water Pump with Engine Oil Cooler |
| Starter & Harness | 10-Pin Harness Included |
| Recommended Fuel | 87 Octane |
Why Choose the MerCruiser 540 BRAVO 450 HP?
- Ideal for High-Performance Boating – Designed for MerCruiser Bravo & Hi-Performance sterndrive applications.
- Built for Strength & Reliability – Features marine-grade materials for maximum durability.
- Enhanced Fuel Efficiency & Power Output – Optimized fuel injection and ignition timing ensure better fuel consumption and superior performance.
- Versatile Repower Solution – Suitable for many different marine setups looking for a powerful V8 upgrade.
- Designed for Extreme Conditions – Advanced cooling system and marine-optimized components ensure long-term dependability.
What’s Included?
- Distributor, flame arrestor, harmonic balancer, flywheel, oil pan
- Fuel pump mounted to sea water pump
- Wire harness, circulating water pump, NGK spark plugs, marine spark plug wires
- Engine oil cooler, oil thermostat, fuel filter, dipstick, oil filter, coil
- Factory-filled with Mercury Racing 25W50 oil
What’s Not Included?
- Engine mounts, water hoses, exhaust manifolds, front dress
- Cooling system, bellhousing, PS cooler, starter, alternator, coupler, pulleys
Warranty & Support
The MerCruiser 540 BRAVO 450 HP (8M0113304) comes with a 3-Year Limited Factory Warranty, ensuring coverage against manufacturing defects and providing long-term peace of mind.
Frequently Asked Questions (FAQs)
What boats are compatible with this engine?
This engine is a service upgrade for carbureted V8 MerCruiser Bravo & Hi-Performance sterndrive applications, making it ideal for boats requiring high-performance inboard motors.
Is this engine suitable for saltwater use?
Yes, it is built with marine-grade corrosion-resistant components, making it suitable for both freshwater and saltwater environments.
What type of fuel does this engine require?
This engine is optimized to run on 87 Octane fuel, ensuring cost-effective and efficient operation.
Does the price include installation?
No, the price is for the engine only. However, Seawave Marine offers installation guidance and expert recommendations for professional marine mechanics.
Can I install this engine myself?
While some experienced boat owners may choose to install it themselves, professional installation is recommended to ensure proper alignment, cooling, and performance.
Order Your MerCruiser 540 BRAVO 450 HP Today
Upgrade your boat with the most powerful, efficient, and reliable V8 marine engine available. The MerCruiser 540 BRAVO 450 HP delivers exceptional horsepower, durability, and fuel efficiency, making it the ultimate choice for a performance-driven boating experience.
