4150 Single Plane Intake Manifold BBF Bullitt

The 4150 Single Plane Intake Manifold BBF Bullitt by Air Flow Research is designed for serious big-block Ford performance applications where maximum flow efficiency and reliability are essential. This single-plane design addresses the core challenge facing BBF (Big Block Ford) builders: optimizing air velocity and distribution across all eight cylinders without compromise.

Developed by Air Flow Research—a name synonymous with precision intake technology—this manifold serves restoration projects, vintage racing platforms, and high-output street engines that demand both period-correct aesthetics and modern thermal dynamics. Cast from durable aluminum alloy and weighing 28 pounds, the manifold strikes the balance between structural integrity and weight control essential for street and strip use.

The Bullitt designation reflects Air Flow Research's commitment to validated flow bench testing and real-world validation rather than theoretical CAD optimization. This intake manifold delivers measurable gains for engine builders and enthusiasts working with big-block Ford, ensuring optimal performance in various applications.