This offering allow you to build your own engine from the block up by scratch: controlling all parts and options to be used. Think of it as building a sandwich at SUBWAY sandwich shop where you start with type of bread selection moving on to the sandwich filling of all the goodies you want inside, down to even the last seasoning condiments. No cookie cutter generic crate engine here. We give you all the control to make your one of a kind custom engine in your choice of LS/LSX, Big Block Chevrolet, or Small Block Chevrolet. The base engine consists of a balanced and assembled long block, supercharger and EFI intake are an addition cost, upgrade charge over base buy it now price.