If you're on the hunt for a solid, reliable LSx engine for your muscle car or hot rod, look no further than the Texas Speed & Performance (TSP) turn-key engine packages. These aren't just any engines; they're built with care and precision that you can feel from the moment you hit the gas.
Each engine is crafted using state-of-the-art CNC equipment, ensuring that every component meets strict tolerances. What’s more, our team of experts—who specialize solely in LSx engines—hand-assembles each package right here in-house. That means you’re getting an engine made from all brand-new parts, including the block. No remanufactured junk here!
One standout feature is our unique digitizing and blueprinting process for every engine block, adhering to factory GM specs. This means when you drop this engine in, it’s ready to rock without the hassle of modifications. The TSP 408 CID engine packs a punch with 580 horsepower, and it’s designed to idle smoothly while working seamlessly with a factory torque converter.
Included in the package is the Holley Terminator X Max engine management system, which is a game-changer. It offers real-time fuel learning, high impedance injector drivers, and an integrated 1-bar MAP sensor. Plus, you can control a 4L60E or 4L80E transmission if you want. The 3.5” touch screen LCD makes tuning easy, and you’ll get a full suite of software for advanced tweaking. It’s like having a personal mechanic in your pocket!
We’re not just throwing engines together and calling it a day. Every TSP engine comes with a one-year, unlimited-mile warranty because we stand behind our work. When you buy from us, you’re not just getting parts; you’re tapping into our extensive knowledge and experience. We’ve done countless LSx retrofits, so we know what works. Just give us a shout if you need help figuring out what your setup requires.
Now, a quick heads-up: it’s crucial to verify your clearances for front drive accessories and the oil pan kit. While we’ve designed these kits to fit most setups, every car is unique. Make sure to double-check those measurements before you place your order, as returns aren’t accepted once the engine is built and shipped.
Oh, and we include 12 quarts of break-in oil at no extra cost. Proper break-in is vital for the engine’s longevity, and our break-in oil has the right ZDDP additives to ensure your new beast seals up nicely from the get-go.
If you're ready to take your ride to the next level, give us a call. We're here to help you figure out exactly what you need to get your engine running smoothly.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
2004-2007 Cadillac CTS-V |
CTS-V | 2004-2007 |

Texas Speed and Performance began as a small business in 2003. Texas Speed and Performance is situated in Georgetown, Texas, and is a leader in the LSx sector. Texas Speed & Performance has quickly established itself as one of the largest performance makers and retailers of premium LSX and LT1 packages in the United States. Texas Speed and Performance founders, Trevor Doelling and Jason Magnum, have a combined 30+ years of experience in the high-efficiency sector and are constantly striving to research and manufacture the highest quality performance goods for your car. This is accomplished by putting their products through their paces on their in-house futuristic super flow engine dyno. Texas Speed and Performance components can be found in some of the fastest street and competition automobiles in the country.
WHY CHOOSE TEXAS SPEED AND PERFORMANCE?Texas Speed and Performance provides all levels of aftermarket performance products from LSx and 2014+ 6.2L LT1/LT4 performance parts, aftermarket cast cylinder heads, basic air induction exhaust, camshafts, stroker engines and in-house machining of all their engines. They are one of the largest LSx and 2014+ 6.2L LT1/LT4 specific shops in the country. Owing to their in-house cylinder head manufacturing, engine assembly, and camshaft grinding facility, they assist customers with all of their high-performance LSx and 2014+ 6.2L LT1/LT4 needs and requirements.
TEXAS SPEED AND PERFORMANCE PRODUCT LINETexas Speed and Performance Exhaust offers camshafts, short and long blocks, turn-key engines, valvetrain, crankshafts, rods, and aftermarket cylinder heads.
VIVID RACING-TEXAS SPEED AND PERFORMANCEThe Texas Speed and Performance products at Vivid Racing include the Texas Speed and Performance Stage 4.2 LS7 Camshaft Chevrolet Camaro, Corvette 2006-2015, which has fitment for the Chevrolet Camaro 2012-2015 and Chevrolet Corvette 2006-2013 models.