Single Plane Intake GM Gen V LT Fits Most GM Gen V LT Engines with OE-Type LT Cylinder Heads HolleyThis intake manifold is meant for Gm Gen V Lt engines equipped with Oe type Gm Gen V Lt cylinder heads where the intake flange bolt pattern and intake port opening locations match the Oe Gen V Lt port configuration. This product is intended for Oe direct injection and a 4150 EFI throttle body , but there are also other Holley accessories available to allow the installation of a Gm Ls 92mm or 105mm drive by wire throttle body (#17 93 and #17 94). The