Crossover Headers 1-5/8 - 1-3/4

The Crossover Headers 1-5/8 - 1-3/4 are engineered specifically for high-performance racing where optimizing exhaust pulse timing is critical for mid-to-high range horsepower gains. Designed for the Small Block Chevy platform, these conventional crossover headers help balance backpressure across cylinders, making them a preferred choice for dirt track and circle track competitors. By crossing over specific exhaust runners, this configuration utilizes the kinetic energy of exhaust gases to improve scavenging and cylinder filling efficiency. These headers are essential for drivers looking to refine their engine's torque curve and maintain competitive speeds on the straightaways.

Constructed from durable steel with a protective black paint finish, the Crossover Headers 1-5/8 - 1-3/4 feature a stepped primary tube design that transitions from 1.625 inches to 1.75 inches. This stepped architecture is a proven method for maintaining high exhaust gas velocity while allowing for the increased volume required at higher RPMs. The system terminates in a substantial 3.5-inch collector, ensuring that exhaust flow remains unrestricted as it exits the primary tubes. Each pair comes complete with necessary gaskets and mounting hardware, providing a comprehensive solution for a professional-grade installation.

These headers are built for a precise fit on Small Block Chevy engines, offering the structural integrity needed to withstand the high temperatures and vibrations of competitive racing. Because they utilize a crossover design, they are particularly effective for builders who understand the nuances of firing order and exhaust tuning. Mechanics and racing teams will appreciate the standardized flange design that simplifies the mounting process onto factory or aftermarket cylinder heads. Whether you are performing a seasonal refresh or a ground-up engine build, these headers provide the technical specifications required for peak performance.