LS Exhaust Header for G-Body Chassis
Whether you are dropping an LS motor into a classic G-Body chassis or tackling a fresh engine swap the 1.875 inch mid-length ceramic header solves clearance and thermal challenges by hugging frame rails without intrusion. Its 3/8 inch thick steel flanges plant firmly against LS heads to deliver a leak-free seal across varying tune states. Constructed with precision TIG welds and silver ceramic coating it reflects radiant heat away from wiring and coolant lines. From 4L60E to 4L80E bolt up this header streamlines installation and maintains consistent exhaust flow.
Precision TIG Welding for Durable Header Construction
Every weld on these LS swap headers is executed with tungsten inert gas (TIG) welding to form a seamless bond between the steel primaries and the three eighths inch flange. This process applies heat in a focused arc, preventing distortion of the tubing and flange plate even under repeated thermal cycling. The result is a strong, crack-resistant joint that upholds a leak free seal over years of use. By minimizing warpage, TIG welding ensures the mating surface remains perfectly flat against LS heads, cutting down on exhaust leaks and maintenance downtime. Builders gain confidence in a header that retains its shape and sealing precision through thousands of heat and cool cycles.
Mid Length Tube Geometry for Chassis Clearance
The 1.875 inch tubing follows a mid length design tailored to the engine bay of first generation G Body vehicles. Tubes extend just far enough to clear frame rails, steering linkages and cross members without intrusive bends or custom modifications. This engineered routing avoids interference with suspension components and wiring harnesses, making installation straightforward and repeatable on both sides of the engine. With consistent tube angles, hot exhaust gases are guided away from coolant hoses and electrical lines, reducing heat soak. Owners benefit from a drop-in fit that saves hours of fabrication work and preserves underhood packaging.
Ceramic Coating for Heat Reflection and Corrosion Resistance
The silver ceramic finish on the headers serves a dual function of thermal management and surface protection. Thanks to its reflective properties, radiant heat is pushed back into the exhaust stream, lowering underhood temperature by up to several hundred degrees. The coating also forms a barrier against moisture, road chemicals and oxidation, preventing flaking or peeling that could expose bare steel. Over extended service life, this protective layer stays bonded to the tubing, keeping corrosion at bay and maintaining consistent thermal performance. Technicians find fewer fouled sensors and more stable tune settings when engine bay heat is tightly controlled.
1.875 Inch Primaries Optimized for Exhaust Pulse Tuning
The choice of a 1.875 inch diameter for each primary tube strikes a balance between low end torque and high rpm horsepower. At this dimension, exhaust pulses maintain velocity to generate a scavenging effect that draws fresh air-fuel charge into the combustion chamber. This dynamic yields quicker throttle response and a broader torque curve, making everyday driving more engaging. The carefully calculated primary length paired with smooth internal weld beads helps prevent backpressure spikes that can sap power. The result is an exhaust header that enhances engine efficiency and power delivery without sacrificing drivability.
Engineered for a precise fit and reliable performance in your LS swap project.