Reliable, Custom Built Crate Performance Engines
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LSx Supercharged Complete Turn-Key Drop In Ready Engine Packages

Are you looking to bring your classic muscle car into the 21st century? Check out Proformance Unlimited’s complete line of LSx Supercharged turn-key crate engines! We offer 376, 408, 416 and 427 CID LSx packages with power ranging from 720 HP all the way up to 1500 HP. All of our 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!