Are you looking to bring your classic muscle car into the 21st century? Check out Proformance Unlimited’s complete line of LQ9/LS6 turn-key crate engines! We offer 364, 408, and 420 CID LQ9/LS6 packages with power ranging from 480 HP all the way up to 625 HP. All of our hand built turn-key crate engines include a custom engine harness and ECM that can be built to run your electronic transmission. They also include a two year, unlimited mileage warranty. Give us a call today to get a quote on your turn-key crate engine!