1968-1972 A-Body LS Ceramic Coated Long Tube Headers for Chevelle GTO Cutlass Skylark
Swapping an LS powerplant into a 1968-1972 A body chassis often runs into clearance conflicts that stock manifolds cannot resolve. These 1.875 inch bore long tube headers use precision mandrel bending and a durable ceramic coat to channel exhaust pulses smoothly while reflecting heat away from the engine bay. Moreover, their exact flange pattern aligns with common mount kits for Chevelle, GTO, Cutlass and Skylark applications to eliminate alignment headaches and ensure a tight seal under all driving conditions.
Precision Mandrel Bent Tubes Enhance Exhaust Scavenging
These headers feature mandrel bent primary tubes with a 1.875 inch bore that maintain a consistent interior profile from flange to collector. This smooth path reduces turbulence and backpressure, allowing exhaust pulses to merge and exit more efficiently. The improved scavenging process helps cylinders evacuate spent gases more completely, which translates into stronger throttle response and enhanced midrange torque. By optimizing flow without altering cam timing or fuel mapping, these tubes unlock more usable power across the rev range.
Ceramic Coating Delivers Superior Thermal Control
The silver ceramic finish acts as a thermal barrier by reflecting radiant heat back into the exhaust stream and reducing underhood temperatures. Insulating the steel tubes slows heat transfer to nearby intake components and wiring harnesses, minimizing heat soak that can sap performance. Additionally, the coating resists corrosion and abrasion through repeated temperature cycles, preserving both appearance and function for years of driving.
Exact Flange Alignment for Streamlined Installation
Each flange is machined to match the bolt pattern of popular kit adapters for 1968 to 1972 A body platforms, including Chevelle, GTO, Cutlass and Skylark. This precision alignment removes guesswork during assembly, cutting installation time and avoiding interference with frame rails or steering linkages. A tight fit without excessive shimming ensures a leak free seal that holds under vibration and thermal cycling. Installers can rely on a consistent flange to header interface that helps preserve gasket life and maintain steady performance.
Durable Steel Flange Construction for Leak Proof Seals
Constructed from mild steel with flanges measuring 3/8 inch thick, these headers resist warping under high temperature and clamp preload. The added stiffness ensures even gasket compression over the full flange face, preventing exhaust leaks that can sap power and raise cabin noise. This robust build also aids in lining up collectors and midpipes, preserving the smooth exhaust path designed by the primaries. As a result, drivers experience consistent torque delivery and reliable operation session after session.
Engineered for precise fit in your LS swap and reliable performance.