SBC Tri-Y Modified 1-3/4 - 1-7/8

The Schoenfeld SBC Tri-Y Modified 1-3/4 - 1-7/8 headers are specialized exhaust manifolds designed for small-block Chevrolet performance enthusiasts. These headers are ideal for both street and strip applications, where efficient scavenging can significantly enhance horsepower and torque delivery. They are suitable for a variety of projects, including classic muscle cars, restomods, and modern LS swaps.

Featuring a tri-Y configuration, these headers utilize stepped primary tubing with diameters ranging from 1-3/4 to 1-7/8 inches, optimized for SBC cylinder head flow characteristics. The modified design allows for independent collector tuning, which helps reduce backpressure while maintaining scavenging pulse benefits across the RPM range. Constructed from durable materials, these headers are built to withstand high temperatures and aggressive tuning without warping or cracking.

SBC engine builders, restoration shops, and performance mechanics will find these headers beneficial for builds ranging from 283 to 400 cubic inches. The stepped primary design accommodates both stock and ported cylinder heads, providing flexibility for various installation specifications and emission requirements. Whether you're a DIY mechanic or a professional builder, Schoenfeld headers deliver authentic quality and proven exhaust dynamics.