LS Exhaust Header for G-Body Vehicles
When swapping an LS engine into a G-Body chassis from 1978 to 1988, these mid-length ceramic headers deliver the precise clearance and thermal barrier your project demands. Constructed with 1 7/8 inch primaries and machined flanges from three eighths inch steel plate, they clear frame rails and steering linkages while supporting direct bolt-up to 4L60E and 4L80E transmissions. By reflecting radiant heat away from wiring harnesses and coolant lines, the silver ceramic finish helps maintain stable underhood temperatures for consistent tuning. Each flange seats firmly against LS cylinder heads for a leak-free seal under varied driving conditions.
Precision TIG Welding for Enhanced Structural Integrity
The headers are assembled using TIG welding, a process known for its precision and clean joints. By concentrating heat in a controlled arc, each weld bead fuses the steel tubing to the flange without introducing warpage or distortion. This method produces a consistently strong bond that resists cracking under repeated heat cycles and vibration. The result is a header assembly that maintains its shape and sealing surface over many seasons of use, reducing the risk of exhaust leaks. In practical terms, weld accuracy directly translates into stable performance and fewer service interruptions.
Mid Length Geometry for Ideal Chassis Clearance
Designed specifically for G-Body chassis from 1978 through 1988, the mid length layout balances compact packaging with optimized exhaust flow. The primary tubes extend just far enough to clear frame rails, steering linkages and factory crossmembers without intruding on suspension components. This geometry simplifies routing in tight engine bays, eliminating the need for manual tube bending or custom brackets. Builders benefit from consistent fitment on both driver and passenger sides, saving time during installation. The precise tube angles also help direct hot gases away from coolant lines and electrical harnesses.
Ceramic Coating Resistance Against Heat and Corrosion
The silver ceramic finish serves a dual purpose of thermal insulation and surface protection. Its reflective properties reduce radiant heat transfer into the engine bay, helping critical components operate within designed temperature ranges. The coating resists flaking, oxidation and chemical attack from road salts or moisture, preserving the bare steel beneath. Over countless heat cycles, the barrier retains its bond to the tubing, preventing breakdown that can expose metal to corrosion. This enduring surface treatment contributes to more consistent tuning and fewer maintenance intervals.
Optimized Tube Diameter for Exhaust Pulse Tuning
Each primary tube measures 1.875 inches in diameter, a size chosen to harmonize low-end torque with high-rpm power delivery. At this dimension, exhaust pulses maintain velocity as they exit the cylinder head, creating a scavenging effect that draws fresh mixture into the combustion chamber. This dynamic improves throttle response and yields a broader power band, making the vehicle feel more lively in everyday driving. The careful balance of diameter and length also prevents excessive backpressure, which can hamper horsepower gains. In performance terms, this design delivers both drivability and responsiveness without compromise.
Designed for a precise G-Body fit and lasting durability in your LS swap project.