Holley Performance Products and Hooker Headers are proud to announce a complete line of products to swap a GM LS-based engine into your '78-'88 A/G-Body. Holley Performance Products and Hooker Headers have partnered together to offer the most versatile and complete swap kits on the market. If you are planning to swap an LS engine into your G-body, it is important to use components that are designed to work together to ensure a trouble-free install that provides optimized drivetrain geometry and component clearances. Holley and Hooker swap parts include headers, exhaust manifolds, stainless steel exhaust systems, engine mounts, transmission mounts, adapter kits for specific transmissions, and complete plug & play EFI systems. Using these parts together ensures a trouble-free installation to give you the cleanest, best-performing swap possible. The individual product text and high-resolution images can be found on our A/G-Body LS-swap components page.