LS Engines

The L92 is a 6.2L, Gen. 4, small block engine used in GM luxury trucks and SUVs between 2007 and 2008. For marketing purposes, it was also known as the […]

[Editor’s Note: This LM4 engine upgrade guide is part of a series of LS engine upgrade guides assembled by a team of LS experts at Summit Racing that we’re sharing at OnAllCylinders. For […]

The LM4 is a 5.3L, Gen. 3 small block engine used in GM trucks between 2003 and 2005. It’s is very similar to the LM7, except that it’s built on an […]

[Editor’s Note: This L76 truck engine upgrade guide is part of a series of LS engine upgrade guides assembled by a team of LS experts at Summit Racing that we are sharing […]

The L76 is a 6.0L, Gen. 4, aluminum small block engine used in both GM cars and trucks from 2007 to 2009. This article is dedicated specifically to the truck and […]

[Editor’s Note: This L33 engine upgrade guide is part of a series of LS engine upgrade guides assembled by a team of LS experts at Summit Racing that we are sharing at OnAllCylinders. […]

The L33 is a 5.3L, Gen. 3 small block engine used in GM trucks between 2005 and 2007. Although it is a truck engine, it used cylinder heads closely related to the […]

There are a lot of factors to consider when swapping an LS engine into a vehicle not originally equipped with one, perhaps the most important being the transmission choice. The […]

[Editor’s Note: This LY6 engine upgrade guide is part of a series of LS engine upgrade guides assembled by a team of LS experts at Summit Racing that we are sharing at […]

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 […]