64-70 Mustang Headers 260/302W

The FLOWTECH 64-70 Mustang Headers 260/302W are engineered exhaust manifold replacements designed specifically for first-generation Mustangs equipped with 260 cubic inch or 302 cubic inch Windsor engines. These headers unlock measurable horsepower and torque gains by replacing restrictive factory cast-iron manifolds with tuned tube designs that optimize exhaust gas scavenging and reduce backpressure. Whether you're restoring a classic 1964–1970 Mustang or building a weekend warrior, these headers are a foundational upgrade for any serious engine performance project on the early Mustang platform.

FLOWTECH headers use mandrel-bent tubing to maintain consistent internal diameter through each bend, eliminating the restrictive pinching that occurs in press-bent factory manifolds. This design improves volumetric efficiency, allowing exhaust gases to exit the cylinders more freely and reducing the workload on the engine's scavenging cycle. The 260/302W designation confirms compatibility with both the original 260 cubic inch engine and the later 302 cubic inch Windsor variants, making these headers a versatile choice across multiple engine generations.

Tube diameter, primary runner length, and collector design are calibrated to match the breathing characteristics of small-block Ford displacement, ensuring peak efficiency across the RPM band rather than just peak power. Installation requires removal of the original manifolds and connection to an existing exhaust system or custom downpipe. These headers are ideal for enthusiasts looking to enhance the performance of their classic Mustang.