LS Engines

LS6-on-Dyno
LS Engines

LS6 Engine Upgrade Guide: Expert Advice for LS6 Mods to Maximize Performance

[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 […]

LS Engine in a Miata
LS Engines

LS Engine Bore & Stroke Chart

If you’re rebuilding or upgrading your GM LS motor, knowing the bore and stroke of your stock Chevy LS engine is critical. It doesn’t matter if your LS is a Gen 3 […]

Cadillac CTS V LS6
LS Engines

LS6 Engine Specs: Performance, Bore & Stroke, Cylinder Heads, Cam Specs & More

The 5.7L LS6 is the most powerful Gen. 3 small block engine as it came from the factory. It is an improved version of the LS1 produced for the 2001 […]

LS2 truck engine
LS Engines

LS2 Truck Engine Upgrade Guide: Expert Advice for LS2 Truck-Engine Mods to Maximize Performance

[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 […]

2006 Trailblazer SS LS2 Engine
LS Engines

LS2 Truck Engine Specs: Performance, Bore & Stroke, Cylinder Heads, Cam Specs & More

The LS2 is a 6.0L, Gen. 4, aluminum small block engine that came in both cars and trucks. The engine specs and information we’re sharing here are for the LS2 […]

LS2 car engine
LS Engines

LS2 Car Engine Upgrade Guide: Expert Advice for LS2 Car-Engine Mods to Maximize Performance

[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 […]

2005 GTO LS2
LS Engines

LS2 Car Engine Specs: Performance, Bore & Stroke, Cylinder Heads, Cam Specs & More

The LS2 is a Gen. 4, 6.0L, aluminum small block engine. The engine specs and information listed here is for the stock LS2 used in GM passenger cars from 2005-2007. Mechanically similar, General […]

GM LS Valvetrain
LS Engines / Tech Articles

LS Tech: How to Delete Variable Valve Timing (VVT) on an LS Engine

Variable Valve Timing (VVT) is a system that automatically adjusts valve timing. GM used VVT on the following engines within the LS family. (Summit Racing’s Paul Spurlock and Brian Nutter contributed […]

LS Engines / Tech Articles

How to Delete or Disable Active Fuel Management (AFM) on GM Engines

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 […]

LS3 engine
LS Engines

LS3 Engine Upgrade Guide: Expert Advice for LS3 Mods to Maximize Performance

[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 […]