Unleash power, save money with Speedway Motors. Turbo setups for your 4.8, 5.3, or 6.0 LS engine offer unmatched dollar-to-horsepower value. Get it right the first time with us!

LS Turbo Setups: Twin vs Single (with Sizing Guide) 

This resource contains a transmission pan shape ID chart and other tips to help with identifying GM transmissions.

How to Identify GM Transmissions | 700R4, TH350, 4L60, TH400, 4L80e, Powerglide, & More

Making great horsepower on a budget is the LS engine family’s claim to fame, but just like any other engine, the more power you ask of it the more you’ll need to spend.

6.0 LS Build Combinations: Recipes for 500-1,000 HP

Making great horsepower on a budget is the LS engine family’s claim to fame, but just like any other engine, the more power you ask of it the more you’ll need to spend

5.3 LS Build Combinations: Recipes for 400-700+ HP

Considering boosting your LS engine? Find out what's best for your build, turbocharging or supercharging!

Turbo vs Supercharger | The Best Way to Boost Your LS Build

Learn how to install a side detent shifter in a 1969 Chevy C10.

How to Install Side Detent Shifter for GM TH200, TH250, TH350, and TH400

The 4.8 LS engine is a salvage yard bargain vs the typical 5.3 or 6.0 LS and can still make great power for your LS swap needs.

Vortec 4.8 LS Build: Horsepower Recipes, Specs, & Upgrades

While everyone is looking for a 6.0 LS, don’t count out the original 5.7 LS1 engine for your next LS swap performance build

5.7 LS1 Engine Upgrades: Build Recipes for 400 HP-700+ HP

We show you how to keep that old GM transmission when swapping in an LS engine. Our LS swap adapter kits make it easy!

How to Adapt LS Engine to 700R4 or Turbo 350 Transmissions

Building GM’s LQ4 6.0L Gen 3 LS engine for various power levels is easy with the right performance parts recipe.

LQ4 Engine Build Upgrades | Recipes for 500HP - 1,000HP

Engine Family Facets

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TH400, Turbo Kits

TH400, Turbo Kits | Speedway Motors

Shop TH400, Turbo Kits and get Free Shipping on orders over $199 at Speedway Motors, the Racing and Rodding Specialists. TH400, Turbo Kits in-stock with same-day shipping.

LS Swap Single Turbo Kit Hot Side, TH350/TH400 Crossover, 67mm

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LS Swap Single Turbo Kit Hot Side, TH350/TH400 Crossover, 78mm

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LS Swap Single Turbo Kit Hot Side, TH350/TH400 Crossover, 67mm

LS Swap Single Turbo Kit Hot Side, TH350/TH400 Crossover, 78mm