[Editor’s Note: Because the LQ4 and LQ9 engines are so similar, we’ve combined them for this engine upgrade guide, which is part of a series of LS engine upgrade guides assembled by a […]

[Editor’s Note: This LS7 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. […]

[Editor’s Note: This LS6 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 […]

[Editor’s Note: This LS2 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 […]

[Editor’s Note: This LS2 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 […]

Active Fuel Management (AFM) is a trademarked General Motors technology that improves gas mileage by shutting down half of the cylinders under light-load conditions to reduce fuel consumption. It is […]

[Editor’s Note: This LS3 engine upgrade guide is the second in a series of LS engine upgrade guides assembled by a team of LS experts at Summit Racing. The LS3 engine […]

[Editor’s Note: This LS1 engine upgrade guide is the first in a series of LS engine upgrade guides assembled by a team of LS experts at Summit Racing. The LS1 engine […]

There is much to consider when choosing a carburetor for your vehicle. Airflow, choke style, and even the physical height of your carburetor will come into play. But what about […]

Volumetric efficiency is a term that’s tossed around quite a bit when talking about internal combustion engines. However, surprisingly few people understand what volumetric efficiency is and how it actually affects […]