1-7/8 Ceramic Coated LS Mid-Length Headers
When fitting an LS powerplant into a 1991 to 1996 B Body chassis, proper exhaust scavenging and heat control are key and the 1991 to 1996 B Body LS ceramic coated mid length headers with 1 and 7 eighths inch primaries answer both. These headers align with small block exhaust ports without modification using three eighths inch thick flanges that maintain a leak free seal under high thermal stress. A reflective silver ceramic finish traps heat inside the tubes to keep intake air dense during sustained loads and also resists moisture and road salt for lasting corrosion defense. Precision laser cutting and CNC formed bends simplify installation by retaining steering and brake line clearance while maintaining factory driving geometry. By tuning primary diameter to optimize pulse overlap these headers contribute to improved low end torque and throttle response across the LS rpm range.
Engineered 1 and 7/8 Inch Primaries for Enhanced Exhaust Scavenging
The 1 and 7/8 inch primary tubes are carefully sized to generate optimal pulse overlap, which sustains high exhaust gas velocity throughout the LS rpm range. By maintaining this velocity, backpressure is minimized, translating into measurable gains in both low end torque and peak horsepower. Equal runner lengths and gentle bends ensure each cylinder contributes uniformly, preventing hot spots and uneven performance under load. In a 1991 to 1996 B Body chassis, this precise diameter also helps preserve balance between scavenging efficiency and underhood packaging constraints. The result is crisper throttle response, improved fuel efficiency during cruising, and a broad, usable power band that enhances daily driving and spirited runs alike.
Ceramic Coated Finish for Superior Heat Management and Corrosion Defense
The reflective silver ceramic coating serves as a thermal barrier, keeping radiant heat inside the tubes and reducing engine bay temperatures. Cooler underhood conditions help maintain intake charge density and protect nearby components such as wiring harnesses and coolant lines. In humid or coastal environments, the ceramic layer resists moisture intrusion and road salt, preventing rust from forming on the steel substrate. Its hard, nonporous surface also inhibits grime adhesion, making routine cleaning straightforward and preserving the headers' appearance. Over time, this finish maintains its integrity under repeated heat cycles, ensuring consistent performance season after season.
Durable 3/8 Inch Flanges for Reliable, Leak Resistant Sealing
Each flange is machined from 3/8 inch thick steel plate to provide a flat, distortion-resistant mating surface that withstands high temperature cycling. This thickness maintains consistent gasket compression, drastically reducing the risk of exhaust leaks during both highway cruising and aggressive acceleration. The rigid assembly endures the vibration and chassis flex common to the B Body platform, eliminating the need for frequent retorque checks. Builders benefit from a solid sealing surface that aligns perfectly with LS small block ports, so gasket failures become a nonissue. In practice, this robust flange design contributes directly to quieter operation and fewer maintenance stops on long drives.
Precision Laser Cutting and CNC Bending for Streamlined Installation
Advanced laser cutting delivers flanges that match factory exhaust port geometry to within fractions of a millimeter, eliminating any need for manual grinding or adjustment. CNC formed bends route each tube to preserve clearance around steering linkage and brake lines, so the headers drop into place without interference. This level of fitment accuracy reduces installation time and ensures the final assembly holds factory driving geometry. Technicians appreciate that bolting the headers on feels seamless, with perfect hole alignment and consistent torque requirements. The precision manufacturing process also minimizes stress concentrations in the tubes, enhancing overall longevity and reliability of the exhaust system.
These headers ensure a precise fit and dependable performance for your 1991 to 1996 B Body LS swap.