LT Engines

Las Vegas, Nevada – As we strolled about the 2024 SEMA Show, it’s clear that the GM Gen. 5 LT-based engine family is quietly usurping the Gen. 3/4 LS as […]

After General Motors announced plans to eliminate tailpipe emissions by 2035, the gearhead world was left wondering if the current 5th-generation LT-series engines were the last in the legendary GM/Chevy […]

I am rebuilding a 2014 L83 5.3L engine for my Silverado pickup and I’m considering making some changes to improve the performance slightly. I have looked into adding larger fuel […]

This is an engine specification guide for General Motors’ fifth-generation L84 engine that launched in 2018 for use in the Chevrolet Silverado 1500 and GMC Sierra 1500. It is commonly […]

This is an engine specification guide for General Motors’ fifth-generation L82 engine that launched in 2018 for use in the Chevrolet Silverado 1500 and GMC Sierra 1500. It is commonly […]

Though the dozens of engines in the GM LS and LT families have many similarities, there are significant differences as well—and it’s important to know exactly what those are if […]

This is an engine specification guide for General Motors’ fifth-generation L83 and L8B engines that launched in 2014. These LT-based engines are commonly referred to as EcoTec3 5.3L engines. They […]

Before you begin your engine project, you need to know exactly what you have—and when it comes to General Motors’ Gen 5 LT small blocks, it’s currently a lot easier […]

This is an engine specification guide for General Motors’ fifth-generation supercharged LT4 engine that launched in 2015. GM has built two different engines designated as the LT4: 1996–1997 LT4 – Gen II, 5.7L, […]

This is an engine specification guide for General Motors’ fifth-generation LT1 engine that launched in 2014. GM has built three engines designated as the LT1: 1970-72 – Gen. I, 5.7L, small block (technically, […]