FRANKENSTEIN ENGINE DYNAMICS 113004 Cylinder Heads Set M311 273CC

( Brand: Frankenstein Engine Dynamics ), ( Manufacturer Part Number: 113004 ), ( Part Type: Cylinder Head ), ( Items Included: 2 Cylinder Heads ), ( Material: Aluminum )

Review FRANKENSTEIN ENGINE DYNAMICS Series 273cc Degree Cylinder Heads Set fits MONSTER LS3 2011

Introducing the Frankenstein Engine Dynamics Monster M311 273cc LS3 Cylinder Heads Set, a game-changer for those seeking high-performance upgrades for their GM LS engine. This set is not just an upgrade; it's a transformation for your engine, promising increased horsepower, torque, and enhanced durability.

Each Frankenstein Monster M311 cylinder head comes with a 273cc intake port design, larger than the stock 242cc. This increase in size offers a significant boost in airflow, allowing for more fuel to be burned, thereby increasing power output. The Monster M311 heads also feature a unique CNC-machined combustion chamber design, optimized for improved combustion efficiency and reduced emissions.

Under the hood, these heads boast large, 2.02-inch intake valves and 1.60-inch exhaust valves. The larger valves promote better gas flow, reducing restrictions and improving overall engine performance. The valve guides are made from high-strength, heat-resistant material, ensuring stable valve performance even under extreme conditions.

The Monster M311 cylinder heads are also designed with a high-flow, rectangular port design for improved airflow and combustion efficiency. The ports are matched with a high-performance, CNC-machined intake manifold gasket, ensuring a perfect seal and optimal flow.

These heads are engineered to withstand the rigors of high-performance applications. They feature a 3-angle valve job for improved flow and strength, as well as stainless steel valve springs and retainers. The heads are also equipped with ARP head studs for added durability and engine stability.

Incorporating the latest in engine technology and design, the Frankenstein Engine Dynamics Monster M311 273cc LS3 Cylinder Heads Set is a must-have for those seeking to unleash the full potential of their GM LS engine. With increased power, improved efficiency, and enhanced durability, these heads are the ultimate upgrade for performance enthusiasts.

The Frankenstein Engine Dynamics 113004 Monster M311 273cc LS3 Cylinder Heads set is a popular aftermarket option for those looking to build high-performance LS engines. Here are some pros and cons that might help you make an informed decision:

1. Enhanced Performance: These cylinder heads offer improved flow rates and better thermal efficiency, which can lead to increased horsepower and torque.

2. Larger Valves: The Monster M311 heads come with larger intake and exhaust valves, allowing for better air and fuel flow into the engine.

3. Improved Durability: These heads are made from high-quality materials and are designed to handle the rigors of high-performance use.

4. Better Cooling: The Monster M311 heads come with larger cooling passages and improved cooling fin design, which can help keep the engine running cooler during hard driving.

5. Flexible Application: These heads are compatible with a wide range of LS engines, making them a versatile option for builders.

1. Cost: The Monster M311 heads are more expensive than OEM cylinder heads.

2. Installation Complexity: Installing aftermarket cylinder heads can be a complex process that requires specialized tools and knowledge.

3. Potential Compatibility Issues: Depending on the specific engine and components being used, there may be compatibility issues that need to be addressed.

4. Potential Power Increases: These heads are designed to deliver increased power, which may not be desirable for all applications.

In conclusion, the Frankenstein Engine Dynamics Monster M311 273cc LS3 Cylinder Heads set offers significant performance benefits, but it also comes with some drawbacks, including cost, complexity, and potential compatibility issues. If you're building a high-performance LS engine and are looking for significant power gains, these heads are definitely worth considering. However, if you're working on a budget build or have limited experience with engine building, you may want to consider other options.

Recommendation: The Frankenstein Engine Dynamics Monster M311 273cc LS3 Cylinder Heads set is a great choice for those looking to build a high-performance LS engine and are willing to invest in the necessary tools and expertise to install them. However, it may not be the best option for those working on a budget or with limited experience. If you're unsure about the compatibility or installation process, it's a good idea to consult with a professional engine builder or shop for guidance.

Details:

O-Ringed Exhaust Ports Hi-Temp Silicone O-rings included. Valve Locks: GM Locks. In Stock, Ready To Ship. Fully CNC-ported and constructed with high-quality components, these heads deliver exceptional airflow combustion efficiency, making them ideal for racing applications as well high performance street builds.

Black Nitrite Stainless Steel Severe Duty Valves. Frankenstein M311 Monster Series 11 Degree LS3 Cylinder Head Pair. Heavy Duty Construction: Extra-thick deck surfaces are included to alleviate head gasket sealing issues, especially in power-adder applications such as forced induction or notorious systems. Exhaust Gaskets: High Temp Silicone O-Rings.

Key Features. Will Not Work with Factory Rocker Stands Must Use M311 Stands or Specific Shaft Kit. Premium Components. Heads Sold/Priced as a pair.

Perfect for High-Rev and Striker Builds: Ideal high-RPM stock bottom end builds or larger displacement striker Engines, these heads are Engineered to meet the airflow demands of aggressive applications. Fits 4.000 and Larger Bore LS Engines when used with a Rectangle Port LS3 Intake Manifold. The Monster Series M311 273cc LS3 Cylinder Heads are Engineered for serious performance enthusiasts seeking unmatched power and reliability. Specifications.

Valve Seals: Vito High Heat Seal.

part #: 113004 prices

• $1880.73-$3000.00

specifications rockeareng:

• for models: Ls3, Monster
• for years: 2011
• brand: Frankenstein Engine Dynamics
• mpn: 113004
• part type: Cylinder Head
• items included: 2 Cylinder Heads
• material: Aluminum

general rockeareng:

• Engines Engine Parts > Valvetrain Components > Rocker Arms Parts
• condition: New

seller rockeareng:

• rating: 99.6%
• city: Niles, Michigan
• # reviews: 22963

offer rockeareng:

• sold: 0
• started: April 25, 2025
• quantity: 6
• options: Ship-to-home
• availability: In Stock

returns rockeareng:

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

payments rockeareng:

• wallet: Apple-pay
• other
• credit card: Mastercard

shipping rockeareng:

• transit: 4-7 Days
• type: Fixed
• cost: $39.99
• service: Standard
• class: Standard

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