"X-Head" Assembled Aluminum Cylinder Head Kit Fits 289/302/351W
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FORD PERFORMANCEPART NUMBER: 397-M-6049X306K1

"X-Head" Assembled Aluminum Cylinder Head Kit Fits 289/302/351W

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"X-Head" Cylinder Head
"X-Head" Assembled Aluminum Cylinder Head KitIncludes:
  • (2) 64cc "X-Head" Cylinder Heads
  • (2) Jegs MLS Head Gaskets
  • Jegs Head Bolt Kit
  • Jegs Exhaust Gasket Set
  • Jegs Valve Cover Gasket Set
  • Jegs Intake Gasket Set

    Kit Includes:

    • Ford Racing Cylinder Heads

      Upgrade airflow and unlock real horsepower with Ford Performance 289/302/351W Aluminum Cylinder Heads, available at JEGS. Designed for enthusiasts building or upgrading small block Ford engines, these high-performance cylinder heads deliver improved combustion efficiency, increased power, and modern reliability. Engineered by Ford Performance, the Ford Performance 289/302/351W Aluminum Cylinder Heads are built to meet the demands of street and strip applications while maintaining OEM-level quality and fitment. Whether you’re restoring a classic Mustang or building a high-output Windsor-based engine, these heads provide a proven performance upgrade.

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      Performance Benefits & Key Features

      Ford Performance aluminum cylinder heads are designed to significantly improve airflow, which directly impacts horsepower and torque output. Featuring optimized intake and exhaust port designs, these heads enhance air/fuel mixture delivery and exhaust scavenging for more efficient combustion. The result is stronger acceleration, improved throttle response, and increased overall engine efficiency.

      Constructed from lightweight aluminum, these cylinder heads offer superior heat dissipation compared to traditional iron heads, helping reduce engine temperatures and improve durability under load. Key specifications often include larger valve sizes, precision-machined combustion chambers, and upgraded valve springs designed to support performance camshafts and higher RPM operation. These heads are capable of supporting builds in the 350–500+ horsepower range depending on configuration.

      For performance enthusiasts, these upgrades translate into a noticeable improvement in engine responsiveness and power delivery. Whether naturally aspirated or paired with mild forced induction, these cylinder heads provide the airflow and strength needed for consistent, reliable performance.

      Fitment, Compatibility & Applications

      The Ford Performance 289/302/351W Aluminum Cylinder Heads are designed for compatibility with small block Ford Windsor engines, including 289, 302, and 351W platforms. This makes them an ideal choice for a wide range of Ford vehicles, from classic muscle cars to modern performance builds.

      Perfect for street performance, drag racing, and restoration projects, these cylinder heads are commonly used in Mustangs, Falcons, Broncos, and classic Ford trucks. Their OEM-based design ensures proper fitment with factory-style components, while also allowing seamless integration with aftermarket intake manifolds, camshafts, and valvetrain upgrades.

      These heads are especially popular among enthusiasts performing engine rebuilds or upgrades, as they offer improved performance without requiring extensive modifications. Whether you're building a daily driver with added power or a weekend street/strip machine, they provide the flexibility and compatibility needed to meet your goals.

      Backed by Ford Performance’s reputation for engineering excellence and durability, these aluminum cylinder heads deliver reliable, high-performance results. Explore the available options at JEGS to find the right setup and take your small block Ford engine to the next level.

    Part TypeCylinder Head
    Product LineFord Performance 289/302/351W Aluminum Cylinder Heads
    BrandFORD PERFORMANCE
    Part CategoryPerformance Parts
    Package Qty1
    Package TypeEA
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