Conversion Packages to install late model 5.7L Hemi engines into older vehicles. These packages have all the necessary fuel, intake and electrical management system components needed to adapt a 2004 or earlier model year 5.7L Hemi into older cars and trucks. These Conversion Packages replace the factory plastic intake manifold and drive-by-wire throttle body with a more user-friendly aluminum intake and top-feed Cable driven throttle body. Now you can offer enthusiasts who may have acquired a used 5.7L Hemi engine from a salvage yard a complete package.