BluePrint Engines is your premium choice in aftermarket, high-performance, drop-in LS crate engines. Our numerous GM LS compatible crate engines offer any custom builder, hot rodder, or kit car builder an engine that has been fully Dyno tested, passed vigorous inspections, and is ready to power up your project. BluePrint crate engines come in several levels of dress - from a shortblock all the way to complete drop-in with all the components that will be needed to start and run the engine the day it’s installed. We offer everything from 6.0 LS crate engines Clear up to LS3 Based 427 Cubic Inch stroker engines either re-power your current LS engine, or to drop a modern, MPFI powerplant into your next project!