LT Long Tube Headers for Chevy C-10/GMC C-15 1973-1987 and 2WD K5 Blazer/Jimmy/Suburban 1973-1991
If you are retrofitting an LT engine into a 1973 to 1987 GM 2WD truck, these 1-7/8 ceramic coated long tube headers are engineered to match factory exhaust ports and clear chassis obstacles with no modifications. The robust ceramic finish reflects radiant heat back into the exhaust stream to reduce underhood temperature and help maintain consistent scavenging for smoother throttle response. Built from mild steel with precision CNC formed flanges and pre tapped O2 sensor bungs, this header kit includes all gaskets and mounting hardware for a secure and leak free installation.
Optimized Exhaust Flow and Scavenging Efficiency
These headers use 1.875 inch primary tubes to maintain gas velocity and reduce backpressure through precise tube diameters. Balanced exhaust pulses improve scavenging for stronger mid range torque and throttle response across the RPM band. The strategic routing of the tubes ensures a smooth transition to the collector, limiting turbulence at high engine speeds. This design translates into measurable gains in power delivery and a more responsive driving feel.
Multi Layer Ceramic Coating for Underhood Heat Control
A series of ceramic layers reflects radiant heat back into the exhaust stream, helping to lower temperatures beneath the hood and protect delicate components such as wiring and hoses. By trapping heat inside the headers, this finish enhances exhaust pulse energy which supports consistent scavenging. The coating is formulated to resist cracking and abrasion through repeated thermal cycles, ensuring long lasting performance in varied driving conditions. Reduced underhood heat also improves air intake temperatures for cleaner engine operation.
Precision CNC Formed Flanges for Reliable Sealing
Each flange is CNC formed and machined to match factory exhaust ports with exact tolerances, providing a stable sealing surface that resists warping under heat and vibration. At three eighths inch thick, these flanges hold composite gaskets firmly in place when torqued with the supplied high grade bolts. This precise fit eliminates alignment headaches and prevents exhaust leaks that can trigger engine codes or sap performance. Installers can achieve a leak free connection on the first try and move straight to tuning without repeated adjustments.
Durable Mild Steel Construction with MIG Welded Joints
Premium mild steel offers a balanced combination of strength and flexibility, allowing the headers to withstand heat fatigue and expansion without cracking. MIG welds create uniform bead profiles that reinforce critical joints and resist the stresses of daily driving and track use. All components are manufactured under strict quality standards in the USA, ensuring consistency in fit and finish. Included gaskets, bolts and V band clamps streamline assembly and integration with your LT engine swap, meaning you spend less time sourcing parts and more time behind the wheel.
These headers deliver a precise fit and durable performance for your LT engine swap.