Aluminum Fabrication. Built with an LS3-style aluminum engine block and crate engine cylinder heads, this universal product is assembled with attention to detail and stringent tolerances. It comes complete with valve covers, timing covers, harmonic balancer, spark plugs, spark plug wires, and a wiring harness, ensuring a seamless installation process.Fuel Injection Design. Additionally, the hydraulic roller OE roller cam style and fuel injection intake manifold style work together to deliver impressive power. Not only is this BluePrint Engines ProSeries LS 427 C.I. 625 HP Base Dressed Fuel Injected Crate Engine a high-performance powerhouse, but it also boasts a 50,000-mile warranty for your peace of mind.One-Piece Style. Included with the engine are the throttle body, oil pans, cylinder heads, computer, and wiring harness, providing you with everything you need for an internal engine balance. The one-piece rear main seal style and fabricated construction further enhance the durability and performance of this engine.Installation. Putting this 427CI ProSeries Stroker Fuel Injected Crate Engine on your ride is easy and requires no drilling.Warranty. There is a 50,000-Mile Warranty on this product.Application. This BluePrint Engines ProSeries LS 427 C.I. 625 HP Base Dressed Fuel Injected Crate Engine is a universal product.