V-Twin Panhead Cylinder Heads 3-5/8" Big Bore for FL

Ready single plug Panhead heads designed for Big Bore shovel head cylinders, for Harley-Davidson FL models, come assembled and ready to install. This set uses a 3-5/8" big bore and features a 98.6mm cylinder flange for high-performance builds.

• Cast iron guides and valve stem seals for durability
• Nitrated valves for wear resistance and longevity
• Stock-style springs and retainers for reliable valve operation
• Shovelhead intake and Panhead exhaust configurations, with Shovelhead exhaust pipe flange and intake ports compatible with O-ring manifolds
• Matched rocker arm assemblies with heat-treated studs, nuts, and oilers
• External oiler system with 1/8" National Pipe Thread holes pre-installed with pipe plugs
• Designed for Big Bore applications up to a 0.450 lift cam
• Accepts 3-5/8" cylinders with a 98.6mm flange; fits Harley-Davidson FL models from 1963 to 1965
• Manufactured in Taiwan

Note: An additional O-ring type intake manifold may be ordered separately to complete installation. These heads are intended for enthusiasts rebuilding or upgrading Harley-Davidson FL engines with classic Panhead/Shovelhead configurations.

V-Twin Motor Shop Ready single plug type Panheads are for use with Big Bore shovel head cylinders only. Comes assembled and are ready to install.

Upgrade your Harley Davidson FL motorcycle with the V-Twin Panhead Cylinder Heads featuring a 3-5/8 inch big bore design. Crafted with precision, these heads are assembled with cast iron guides and valve stem seals, ensuring durability and optimal performance. They come equipped with nitrated valves for enhanced wear resistance and include stock-style springs and retainers for reliable operation. Designed specifically for Shovelhead intake and Panhead exhaust configurations, these heads incorporate features like Shovelhead exhaust pipe flanges and intake ports compatible with O-ring type manifolds, allowing for versatile installation options. The matched rocker arm assemblies are installed with heat-treated studs, nuts, and oilers, providing a robust foundation for high-performance engines. For Big Bore applications up to a.450 lift cam, these Panhead heads feature external oilers with 1/8 inch National Pipe Thread holes, which are pre-installed with pipe plugs, facilitating external oiling systems. The heads are compatible with 3-5/8 inch cylinders, boasting a 98.6mm cylinder flange, making them ideal for performance upgrades. They are suitable for models from 1963 to 1965 Harley Davidson FL, ensuring a perfect fit and reliable performance. Manufactured in Taiwan, these heads are designed for enthusiasts seeking quality and compatibility in their engine rebuilds or upgrades. Please note that an additional O-ring type intake manifold may be ordered separately to complete the installation. Whether you're restoring a classic or building a high-performance engine, these Panhead cylinder heads deliver the quality and features needed for a dependable and powerful ride.

Features:

• Heads assembled with cast iron guides and valve stem seals for durability

• Nitrated valves for wear resistance and longevity

• Stock style springs and retainers for reliable valve operation

• Compatible with Shovelhead intake and Panhead exhaust configurations

• Includes Shovelhead exhaust pipe flange and intake ports for O-ring manifolds

• Matched rocker arm assemblies with heat-treated studs, nuts, and oilers

• External oiler system with 1/8 inch National Pipe Thread holes, pre-installed with pipe plugs

• Designed for Big Bore applications up to.450 lift cam

• Accepts 3-5/8 inch cylinders with 98.6mm flange for high-performance builds

• Fits Harley Davidson FL models from 1963 to 1965

Fitment:
Harley Davidson FL 1963
Harley Davidson FL 1964
Harley Davidson FL 1965