The TSP-408TK620HP from Texas Speed & Performance is designed for enthusiasts who want serious power and reliability in their ride. This 408 CID engine package delivers a robust 620 horsepower, making it a solid choice for those looking to elevate their Cadillac CTS-V or any compatible custom setup.
The TSP-408TK620HP features a custom-grind hydraulic-roller camshaft, and its 11.25:1 compression ratio is optimized for performance. The engine is designed to provide a lopey idle and requires a minimum of 2,800 RPM stall speed torque converter for automatic vehicles.
Many customers have praised the TSP-408TK620HP for its impressive power and smooth operation. One user noted, "This engine transformed my CTS-V into a beast. The installation was straightforward, and the power delivery is fantastic!" Another customer mentioned, "I love the attention to detail in the build. It feels solid and reliable." They appreciate the comprehensive support from Texas Speed & Performance, especially when discussing installation specifics.
This engine is intended for competition use only and is not legal for road use. Make sure to verify necessary clearances for front drive accessories and oil pan kits, as each vehicle may have different requirements.
⚠ 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.