SBC Street Stock Header 1-7/8 Spreadport

The SBC Street Stock Header 1-7/8 Spreadport from Schoenfeld is a purpose-built exhaust manifold designed for small-block Chevrolet engines in street stock racing and high-performance street applications. This header is engineered to replace restrictive OEM cast-iron manifolds that limit airflow, allowing your SBC to produce more horsepower and torque while maintaining a street-legal profile. Serious enthusiasts and bracket racers choose Schoenfeld headers for their ability to reduce backpressure without sacrificing reliability.

The 1-7/8-inch primary tube diameter is optimal for street stock SBC builds, efficiently flowing exhaust gases while minimizing drone and heat soak. The spreadport design ensures each cylinder has its own dedicated primary tube that merges into a common collector, optimizing scavenging pulses and preventing cross-firing interference. Constructed from mandrel-bent steel tubing and finished with high-temperature ceramic coating, this header is built to withstand the rigors of racing.

Street stock competitors and bolt-on performance builders will find this header an ideal upgrade for small-block Chevrolets in sanctioned classes or street-driven applications. Its design and construction make it a reliable choice for those looking to enhance performance without compromising on durability. Whether you're racing on weekends or driving on the street, this header is engineered to meet your needs.