LS Engine Swap Header for G-Body Chassis
For enthusiasts fitting an LS engine into a 1978–1988 GM G-Body chassis, precise exhaust routing within the frame rails and reliable head flange sealing are paramount and this header meets those needs with direct fitment. Featuring 1.875 inch primary tubes and a 3/8 inch steel flange for an airtight seal, it is built from heavy gauge steel for durability. Its silver ceramic coating offers heat resistance, protecting hoses and wiring. Compatible with 4L60E and 4L80E transmissions, it includes exhaust gaskets and mounting bolts. Minor trimming of the pinchweld seam at the firewall may be required, and installation aligns precisely when used with MuscleRods engine mount kits.
Seamless Powertrain Compatibility
Installation is straightforward thanks to a direct fit for 1978-1988 G-Body LS engine conversions. This approach aligns mounting points and hose connections without the need for custom brackets or adapter lines. Transmission compatibility extends to both 4L60E and 4L80E units, simplifying integration with popular overdrive boxes. When paired with MuscleRods mounts, the package guarantees correct engine placement and drivetrain angles, which preserves driveline geometry and reduces vibration. The result is a cohesive assembly that blends classic Corvette style with modern reliability and cooling efficiency.
This precision-built header ensures reliable sealing and durable performance for your LS engine conversion.