Holley LSFest | A celebration of everything and anything powered by the incredible GM LS engine!

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LSFest West

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LSFest Bowling Green

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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

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Holley Announces New Date For LS Fest West 2020 With An All New Twist!

Due to the current lockdown, we’ve decided to move the date of Holley LS Fest West in Las Vegas. The event will now be held the weekend of June 12-14, 2020 and to beat the

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LSX Magazine to Host Valley of Fire Cruise Thursday April 23rd, 2020

LS Fest West is right around the corner, and we can’t think of a better way to kick it off than with a cruise. April 23rd will mark the 4th anniversary of the annual LSX

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2019 LS Fest East Event Results

LS Fest X is officially in the books and after 10 years of mayhem, we’re excited to say that this has been our biggest event ever! With over 35,000 attendees, 1,714 participants and 107

Build Tune Race – LT Swapped Mazda RX-2

James Schauer’s passion for cars started at a young age. If his latest project is any indication, an LT swapped Mazda RX-2, James lives and breathes by his creed: BUILD TUNE RACE. James finds his

Runnin’ Dirty – Twin Turbo, LS Swapped Buick Skylark

Making the trek all the way from Colorado, Greg Orr brought his family over to make some tracks at Holley's LS Fest with Runnin' Dirty, his twin turbo, LS swapped Buick Skylark. This Holley EFI

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2019 LS Fest East Drag Class Results

Holley's LS Fest X is in the history books, with another successful year and thousands of vehicles on property, spectators were flooded with days of non-stop LS powered action! We're bringing you the run-down on

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Holley Introduces

Our New and Hot LS Products

Holley Mid-Mount LS Accessory Drives

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).