SBC Modified Long Tube Header 1-5/8 - 1-3/4

The SBC Modified Long Tube Header 1-5/8 - 1-3/4 from Schoenfeld is designed for serious small-block Chevy engine builders who are looking to enhance exhaust scavenging and throttle response. These headers are suitable for street, strip, and road-course applications, where maximizing horsepower from a modified SBC platform is crucial.

Engineered with stepped primary tubes that transition from 1-5/8 inches to 1-3/4 inches, these headers optimize pulse scavenging across various RPM ranges. The design improves exhaust gas velocity through the primaries before merging into the collector, enhancing cylinder evacuation while maintaining street drivability. Constructed from mandrel-bent steel tubing, they feature TIG-welded bungs for oxygen sensors and EGR provisions, making them compatible with both carbureted and fuel-injected setups.

These headers are particularly beneficial for small-block Chevy platforms ranging from 265 to 400 cubic inches, especially in vehicles where header clearance and installation geometry are critical. The durable ceramic coating resists thermal stress, extending the longevity of the components under high-heat conditions, making them a reliable choice for performance enthusiasts.