64-70 Mustang Headers 260/302W

The FLOWTECH 64-70 Mustang Headers 260/302W (Model 12102FLT) are full-length headers engineered to maximize exhaust scavenging and horsepower gains on small block Ford engines in 1964–1970 Mustangs and Fords. Available as a pair, these headers feature 1.5-inch primary tubes that transition to a 3-inch collector, optimizing the velocity and flow characteristics essential for breathing improvements on 260 and 302 Windsor displacement engines.

Constructed from steel and finished in durable black paint, the headers arrive complete with gaskets and mounting hardware—no additional gasket kits required. The 1.5-inch primary diameter is sized specifically for these displacements, balancing backpressure and flow across the RPM band without requiring engine modifications. Full-length headers replace the factory cast-iron manifolds, allowing exhaust gases to exit more efficiently and reducing heat soak in the engine bay. The 3-inch collector diameter consolidates flow from both banks into a single pipe, simplifying connection to a dual exhaust system or single outlet.

These headers are ideal for classic Mustang enthusiasts and Ford engine builders upgrading 1964–1970 models with naturally aspirated 260 or 302 cubic inch small block engines. Typical power gains range from 15 to 30 horsepower depending on induction and fuel system tuning. Installation requires removal of the factory manifolds and exhaust crossover; careful fitment may be necessary depending on engine bay configuration and accessory placement. The black paint provides corrosion resistance, though high-temperature ceramic coating or stainless steel alternatives are worth considering for extended longevity in high-heat environments.