How do you remove a six cylinder engine from a 1980 full size Chevy truck?

To remove a six-cylinder engine from a 1980 full-size Chevy truck, first disconnect the battery and remove any components obstructing access, such as the air cleaner, radiator, and exhaust manifold. Then, drain the fluids, disconnect the wiring harness, and label the hoses for reinstallation. Use an engine hoist to lift the engine after unbolting it from the transmission and motor mounts. Carefully raise the engine out of the engine bay, ensuring it clears any remaining components.