GM LS engine Archives - UnderhoodService
GM Active Fuel Management System Service

The AFM activation and deactivation are controlled by the Valve Lifter Oil Manifold or VLOM.

Engine Build: Twin Turbo 370 cid LS Engine

Find out what went into this twin turbo 370 cid LS engine build.

JEGS Introduces LS Cam Change Gasket Kits

JEGS LS Cam Change Gasket Kits consist of all the gaskets and seals necessary to swap cams without having to buy a complete engine overhaul kit.

Holley Announces LS Swap System For Third-Gen GM F-Bodies

Holley announces the release of LS swap components for third-generation Chevrolet Camaros and Pontiac Firebirds. The GM third-generation F-Body has evolved from an oft-forgotten sports car of the 1980s into a capable and budget-friendly platform for hot rodders and racers of all walks of life.