Are you looking to bring your classic muscle car into the 21st century? Check out Proformance Unlimited’s complete line of LQ9 turn-key crate engines! We offer 370, 408, and 420 CID LQ9 packages with power ranging from 520 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 for no additional charge! They also include a one year, unlimited mileage warranty. Give us a call today to get a quote on your turn-key crate engine!