1-7/8 LT Ceramic Coated Long Tube Headers for 1964-1967 A-Body (Chevelle/El Camino/GTO/Tempest/Cutlass/442/Skylark)
Tackling tight frame rail clearance and underhood heat in classic A-body swaps, the 1964 to 1967 A-Body 1-7/8 LT Ceramic Coated Long Tube Headers are engineered to accommodate LT engines without compromise. They employ a multi-layer ceramic coating on mild steel tubes to reflect radiant energy back into the exhaust pulses and keep the engine bay cooler. Precision CNC formed flanges match factory port layouts for Chevelle, El Camino, GTO, Tempest, Cutlass, 442 and Skylark applications, while the supplied gaskets and bolts deliver a reliable seal under vibration and thermal cycling. In addition, optimized tube diameter promotes scavenging for stronger torque across the rev range and the robust construction resists chipping and corrosion through repeated heat cycles.
Multi Layer Ceramic Coating for Heat Reflection
The multi layer ceramic finish on the 1 and 7/8 inch header tubes is engineered to reflect radiant energy back into the exhaust flow, which lowers underhood temperatures and preserves component life. Each coating pass builds a dense barrier that resists chipping and corrosive damage during repeated heat cycles. This retained energy also enhances pulse timing so scavenging is more effective, helping to boost torque across the rev range. Cooler engine compartments reduce stress on wiring and hoses, extending their service life in classic A Body swaps.
CNC Formed Flanges for Consistent Port Alignment
Each 3/8 inch thick flange is precision formed on a CNC machine to match factory port layouts for Chevelle, El Camino, GTO, Tempest, Cutlass, 442 and Skylark models from 1964 to 1967. This exact fit ensures uniform contact and, when used with the supplied composite gaskets and grade eight bolts, creates a reliable seal under vibration and thermal load. Installers benefit from a straightforward bolt pattern that reduces the need for repeated retorquing after initial start up. The precise mating surface also helps maintain exhaust integrity and prevents leaks that can impair performance.
Robust Mild Steel Tubing with Fatigue Resistant Welds
The header tubes are formed from premium mild steel that offers a balance of strength and formability for tight frame rail clearance. MIG welded joints provide consistent bead geometry that resists crack initiation and fatigue under constant vibration and thermal cycling. The 1 and 7/8 inch diameter is optimized for modern LT engines while fitting within classic engine bays. This robust construction delivers reliable performance and long service intervals in demanding swap applications.
Optimized Exhaust Flow for Enhanced Torque Delivery
Designing the header for an LT engine swap required careful tuning of tube length and diameter to maximize exhaust scavenging. The straight long tube layout minimizes backpressure by keeping pulses discrete until they enter the collector, which helps free up low end torque and midrange punch. By retaining heat within the exhaust, velocity is maintained, which supports smoother power delivery across the rpm band. These flow enhancements translate to a more responsive throttle feel in street tuned classic A Body vehicles.
Built to last and engineered for optimal exhaust flow, these headers deliver reliable performance in your LT swap.