Holley EFI Gen V LT Single Plane Intake Manifolds

Holley EFI Gen V LT single plane intake manifolds are designed with an optimized runner layout and a constant cross-sectional area, resulting in a broad torque curve with the best vehicle performance from 2,500 to 7,000 rpm. The single-plane design provides the lowest throttle body flange height possible, while providing maximum performance all the way to 7,000 rpm. The cast aluminum construction makes these manifolds great choices for centrifugal blowers, turbochargers, or NOS applications. They are sold for pre-emissions control applications only and will not accept stock components and hardware. Available in two finishes, choose the one you prefer. Features: * Optimized runner layout and constant cross sectional area--broad torque curve * Minimum carburetor flange height--fit in vehicles with minimum hood modifications * Provides classic engine bay look of carburetor-style intake * Cast aluminum construction--great manifold for centrifugal blower, turbocharged, or NOS mild power adder applications * Efficient casting design--lightweight, consistent wall thicknesses, improved casting quality * Weight: 11.5 lbs. * Height: (front) 5.417 in. to the lifter valley cover flange at the engine block front flange and bellhousing flange * Port size: 2.33 in. height x 1.27 in. wide * FKM O-ring intake to cylinder head gaskets Notes: These intake manifolds are 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. They are intended for OE direct injection and a 4150 EFI throttle body. Holley accessories available to allow the installation of a GM LS 92mm or 105mm drive-by-wire throttle body. Holley EFI Gen V LT 300-940 manifold is meant for street and performance engine applications with 5.3 to 6.2+ liters of displacement and maximum engine speeds of 6,000 to 7,000 rpm (depending on the engine combination). 4150/4160 square bore flange. Show Less