LS Ceramic Coated Mid-Length Headers for 1968-1972 Chevelle/GTO/Cutlass/Skylark
These LS 1 7/8 inch ceramic coated mid length headers tackle the space and heat challenges common to 1968 through 1972 A body swaps in Chevelle, GTO, Cutlass and Skylark models. Built with a flange pattern that bolts directly to popular swap mount kits, these headers remove the need for custom shims and speed up installation along the frame rails. With mandrel formed primary tubes that guide exhaust pulses in a smooth flow path, they improve scavenging for a steadier torque curve while the reflective coating sends radiant heat back into the exhaust stream to protect intake runners and wiring from heat soak.
Precision Flange Alignment for A Body Chassis
The precision fit flange pattern is machined to match the bolt configuration found on popular 1968 through 1972 A body mounting kits, eliminating the need for custom shim plates. This exact interface cuts installation time by avoiding trial and error when aligning the header to frame rails and engine mounts. Proper flange alignment prevents interference with suspension linkages and steering components, so installers can achieve a leak free seal from the outset. By eliminating the need for custom shim plates the system cuts valuable shop time, allowing professional and home installers to complete the swap with fewer adjustments. The tight flange interface also prevents gasket extrusion and maintains a clean seal under repeated start cycles.
Mandrel Formed Tubes Enhance Exhaust Scavenging
These headers feature primary tubes that are mandrel formed to a constant radius with a 1 7/8 inch internal diameter from the cylinder head to the collector. The smooth curvature maintains uniform exhaust velocity and reduces back pressure by avoiding abrupt changes in flow direction. Because each bend is formed under low stress conditions the walls retain uniform thickness to avoid weak points that can crack under fatigue. This design takes advantage of the natural pulse effect of each firing event to draw spent gases from the chambers more completely. As a result, throttle response becomes more immediate and the mid range torque band shows greater consistency across the rev range without the need for extra tuning.
Ceramic Coating for Reliable Heat Management
A silver ceramic coating applied to the mild steel surface acts as a radiant barrier that reflects heat energy back into the exhaust stream. By controlling radiant heat transfer the coating limits underhood temperature rise and shields sensitive components such as intake passages and wiring harnesses. Application of the ceramic layer involves multiple coats that bond to the steel surface for maximum adhesion and thermal stability. The ceramic layer also provides corrosion resistance and holds up through repeated thermal cycles while preserving the integrity of the tubing surface. Maintaining cooler bay temperatures helps preserve air density for more stable engine output under load.
Robust Steel Flange and Material Durability
Fabricated from high grade mild steel the header flanges are cut to a thickness of 3/8 inch to resist distortion when exposed to heat and vibration. This robust construction ensures even gasket compression and prevents exhaust leaks that can lead to power loss or noise. The solid flange structure also aids in proper tube alignment, making it easier to match the exhaust outlets to downstream components without stress or binding. Mild steel selection balances cost and durability, giving a combination of formability and strength that is ideal for high temperature exhaust environments. Installers will appreciate that the flange face remains flat even after heavy use or occasional rough handling during maintenance work.
These headers deliver precise fit, effective heat management, and lasting durability for your LS swap project.