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Top Street Performance

Ford Flathead Aluminum Cylinder Head

Ford Flathead Aluminum Cylinder Head

SKU: SKU: JM4325

Regular price $488.88
Sale price $488.88 Regular price $555.55
Shipping calculated at checkout.

In stock

Top Street Performance (TSP) is committed to providing high-quality performance parts while complying with emissions regulations. This product is designed for use on vehicles that comply with federal emissions regulations. It is the customer’s responsibility to verify that this part is legal for use in their state or local jurisdiction. Check with your local emissions authority before purchasing.

Product Details

Features

  • Aluminum construction reduces weight and improves cooling
  • Bare casting allows custom Flathead engine builds
  • Standard port locations simplify component selection
  • Natural finish ready for custom assembly

Description

Upgrade your classic Ford Flathead V8 with a lightweight aluminum cylinder head designed for restoration, hot rod, custom build, and vintage performance applications. Engineered as a bare casting, this aluminum cylinder head provides builders with the flexibility to assemble a valvetrain combination that matches their specific engine goals while reducing weight compared to traditional cast iron components.

Aluminum construction helps improve heat dissipation and cooling efficiency while providing the classic appearance sought by hot rod enthusiasts, restorers, and custom builders. The lightweight design helps reduce overall engine weight while maintaining durability for street-driven and show-quality applications.

This bare cylinder head is an excellent choice for builders seeking complete control over component selection, allowing customization of the engine combination to match intended performance, restoration, or appearance objectives. Whether you're restoring a vintage Ford, building a traditional hot rod, or creating a custom Flathead-powered project, this aluminum cylinder head provides a strong foundation for your build.

Designed specifically for Ford Flathead V8 applications, this cylinder head combines classic styling with modern aluminum construction to deliver the appearance, weight savings, and durability demanded by today's Flathead enthusiasts.


Classic Flathead Design
Designed specifically for Ford Flathead V8 applications, this aluminum cylinder head provides the traditional appearance enthusiasts expect while offering the benefits of modern aluminum construction. The bare casting design allows builders to customize the engine assembly to match restoration, street rod, or performance goals.

Lightweight Aluminum Construction
Aluminum construction helps reduce overall engine weight while improving heat dissipation compared to traditional cast iron components. This makes the cylinder head an excellent choice for vintage restorations, traditional hot rods, custom builds, and classic Ford projects where appearance, durability, and weight savings are important.

Specs

Assembled No
Cylinder Head Finish Natural
Cylinder Head Material Aluminum
Exhaust Port Location Standard
Intake Port Location Standard
Quantity Sold Individually

Engine Fitment

COMPATIBLE WITH
FORD FLATHEAD V8 ENGINES
• 3.6L / 221 in³
• 3.9L / 239 in³
• 4.2L / 255 in³

COMMON VEHICLE APPLICATIONS
Ford passenger cars (1939–1948 Flathead V8 equipped)
Ford trucks using compatible Flathead V8 engines
Hot rod and vintage Ford Flathead builds
Offenhauser-style Flathead cylinder head applications (where listed)

NOTES
• Designed for Ford Flathead V8 applications
• Bare cylinder head casting requires final assembly
Aluminum construction
• Standard intake and exhaust port locations
• Sold individually (quantity of 2 required per engine)
• Verify engine compatibility before purchase
• Verify head gasket and fastener compatibility before installation
• Not compatible with Ford Small Block Windsor, FE, Coyote, or Big Block Ford engines.

Q&A

Is this an assembled cylinder head?
No, this is a bare aluminum cylinder head casting.

What engines does this cylinder head fit?
It is designed for Ford Flathead V8 applications. Specific engine compatibility should be verified before purchase.

Why choose an aluminum Flathead cylinder head?
Aluminum construction helps reduce weight and improve heat dissipation while maintaining a traditional appearance.

Is this suitable for restoration projects?
Yes, it is well suited for restoration, hot rod, and custom Flathead builds.

Can this cylinder head be used on a traditional hot rod?
Yes, aluminum Flathead cylinder heads are commonly used in traditional hot rod applications.

Is this sold individually or as a pair?
The cylinder head is sold individually.

How many cylinder heads are required per engine?
Two cylinder heads are required for a complete V8 engine.

Does this cylinder head come assembled?
No, final assembly is required.

What are the advantages of a bare cylinder head?
Bare castings allow builders to select components that match their specific restoration or performance goals.

Emissions Notice

This Top Street Performance (TSP) product is designed for racing and off-road competition use only. It is not legal for use on public roads or emissions-controlled vehicles and does not comply with federal, state, or local emissions regulations. The buyer assumes all responsibility for legal use and installation.

What is a Emissions-Controlled Vehicle?
"An emissions-controlled vehicle is any vehicle equipped with a factory-installed emissions control system designed to reduce air pollution. These systems include catalytic converters, oxygen sensors, EGR (Exhaust Gas Recirculation) valves, and diesel particulate filters (DPF). Most vehicles manufactured after 1975 are considered emissions-controlled and must comply with federal and state emissions laws when used on public roads."