BLUEPRINT ENGINES 427 C.I. GM LS CO

BluePrint Engines delivers a hard-hitting LS powerhouse with this 830-horsepower 427 Builder Series package, paired perfectly with the proven T56 manual for a turnkey, street-and-strip-ready drivetrain. Holley’s Terminator X EFI system keeps the power crisp and responsive, offering clean starts, smooth tuning, and rock-solid control at any rpm. Built with premium components, tight machining tolerances, and pro-series durability, this LS427 is engineered to take the abuse while delivering relentless modern muscle. The Black Pulley Kit adds a stealthy, performance-driven finish, making this 427/T56 combo as sharp under the hood as it is on the pavement. Includes 30-Month / 50,000 Mile Warranty & Dyno Tested.