LT4 Engine Specs, Performance, and Swap Considerations Explained by Chad Golen July 31, 2026 0 Key Takeaways: The LT4 engine delivers impressive factory supercharged performance but requires careful planning for fuel, cooling, and electronics integration during swaps. Custom LSx crate engines can match or exceed LT4 power levels with less complexity, lower costs, and greater serviceability, making them a strong alternative for street builds. Choosing between LT4 and LSx depends … Read More