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The Events

Holley LS Fest is a celebration of everything and anything powered by the incredible GM LS engine! If a 1997 or later LS based or current generation LT V8 engine is powering your ride or if you are considering a swap to LS power, this is your event! Race cars, street rods, rat rods, muscle cars, trucks, late models – you name it, if it is being powered by an LS there will be something here for you! Take part in our drag racing classes, autocross, 3S Challenge, burnout challenge, off-road challenge, Show-N-Shine, and more! Event/class champions will be crowned as well as an overall event champion for those that want to compete in multiple events. Check out the rest of the site and make plans to join us!

News and Announcements

LSXmag.com

LS Fest West 2019 is right around the corner, and this year, LSX Magazine wants to do something special for one lucky participant. As they cruise through the show admiring all of the awesome LS-swapped

Terminator X EFI for LS Engines

Terminator X was designed with the do-it your selfer in mind. It’s an ideal platform for anyone that wants all the benefits of fuel injection with the versatility and tune-ability that only Holley EFI can

Holley 2-Piece LS Valve Covers

When you’re looking for that classic style on your LS-powered hot rod there’s nothing quite like a set of valve covers to change the look and feel of your engine compartment! This is especially true

Why Do LS Engines Have Steam Tubes?

What are these crazy looking tubes on my LS and why do I need them anyway? In an LS engine, the thermostat is in the water pump housing, which is locating much lower on the

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Holley Introduces

Our New and Hot LS Products

New Holley Mid-Mount LS Accessory Drive!

Holley Mid-Mount Complete Accessory Systems pull all the accessories for your GM LS engine in tighter than ordinary accessory drives for a clean, compact look. At the heart of it is the revolutionary “bracketless” design (patent pending), where all accessories attach directly off the water pump for an integrated look that shows off your horsepower – not your accessories.

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Hooker LS Cast Iron Turbo Manifolds

Holley’s new LS Turbo Exhaust Manifolds are made from cast iron and allow a simpler and easier way to add a turbo to your muscle car. These manifolds are made from High-Silicon-Moly ductile iron and are much more durable & retain more heat than fabricated headers. The manifolds kits include v-band clamps & flanges, heater hose heat shield, and header bolts. A turbo cross-over tube is used to connect the two manifolds (sold separately).

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MSD Blaster Coils for Gen V LT Engines

2014 and up GM owners now have a more powerful ignition option for Gen V Direct Injected V8 power plants. MSD offers Blaster coils in both round and square configurations to cover everything from Corvette and Camaro to Trucks and SUV’s.

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See more LS Products

FEATURED VEHICLE:

Gone Postal! – LS Swapped Mail Truck – Holley LS Fest East

See more featured LS Vehicles

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