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

The Crossover Headers 1-5/8 - 1-3/4 from Schoenfeld are purpose-built exhaust manifolds designed for serious engine builders and performance enthusiasts. These headers are essential for maximizing flow and scavenging efficiency in high-performance exhaust systems. They collect exhaust gases from multiple cylinders and direct them toward a common outlet, making them ideal for street machines, weekend racers, or competition engines.

Schoenfeld's Crossover Headers feature dual tube sizing—1-5/8 inch and 1-3/4 inch diameter primaries—allowing optimized velocity and scavenging for various engine configurations. The stepped-diameter design balances low-end torque with high-rpm breathing capacity, preventing backpressure buildup that can choke peak power. Constructed from durable steel with precise mandrel-bent tubing, these headers are designed to resist warping and cracking under sustained heat cycles.

These Crossover Headers excel in small-block and mid-displacement engine platforms, where tuned headers significantly improve throttle response and peak output. Installation requires basic fabrication knowledge and proper gasket sealing to ensure optimal performance. They are particularly beneficial for applications that demand enhanced exhaust flow and efficiency.