SBC Chassis Headers 1-3/4 - 1-7/8

The Schoenfeld SBC Chassis Headers 1-3/4 - 1-7/8 (model 152EV) are a purpose-built exhaust manifold solution designed specifically for small block Chevy engines in chassis dyno testing and high-performance engine development environments. These headers feature stepped primary tubes ranging from 1.75 to 1.875 inches, converging into a 3.5-inch collector designed to optimize exhaust scavenging and flow characteristics across the RPM range. Manufactured from heavy-duty steel and finished in durable black paint, this pair comes complete with gaskets and mounting hardware for immediate installation.

The stepped primary tube design balances backpressure management with flow efficiency, a critical consideration in dyno work where consistent, measurable exhaust gas dynamics directly impact combustion analysis. The 3.5-inch collector diameter accommodates the volume characteristics typical of small block engines operating across a wide band of power output. At 26.2 lbs per pair, these headers offer substantial construction while maintaining the dimensional stability required for repeatable test conditions. The included gaskets and hardware eliminate guesswork during installation, ensuring proper sealing and reliable data collection across multiple test runs.

These chassis headers serve engine builders, performance shops, and dyno operators who need to monitor exhaust flow characteristics during small block Chevy development and tuning. The stepped tube configuration provides the flexibility to optimize for different displacement ranges and fuel combinations without swapping complete header sets. Whether diagnosing peak torque delivery, evaluating cam timing changes, or validating induction system modifications, consistent exhaust routing through quality manifold construction ensures that test results reflect actual engine performance rather than hardware limitations.

Schoenfeld headers are recognized in the performance automotive community for precision casting and finishing. The 152EV model specifically addresses the needs of small block Chevy platforms in laboratory and development settings where reproducibility and data integrity are paramount. The black paint finish provides corrosion resistance across extended testing cycles while maintaining a professional appearance on the dyno.