1-5/8in SBC Weld Up Kit- 3in Weld On Collector

The 1-5/8in SBC Weld Up Kit with 3in Weld On Collector by Hedman is designed for small-block Chevrolet engine builders who want to maximize exhaust scavenging and power output through custom header fabrication. This kit is ideal for serious enthusiasts and professionals who require precise control over tube diameter, runner length, and collector design to optimize exhaust flow for their specific engine setup.

Featuring 1-5/8-inch diameter primary tubes, this kit is suitable for stock to moderately modified small-block Chevrolets producing 350–400 naturally aspirated horsepower. The included 3-inch weld-on collector minimizes turbulence and backpressure, enhancing overall performance. Hedman's mandrel-bent steel tubing ensures consistent wall thickness, preventing collapse and providing durability during high-temperature cycling.

This weld-up kit is perfect for engine builders looking to fabricate custom headers tailored to their specific needs. By allowing for individual component selection, it enables users to match their exact intake manifold flange location and exhaust routing requirements, making it a versatile choice for various applications, including street performance and racing.