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Gen V LT Single Plane Intake by Holley - Carbureted - Cast Aluminum L83 L86 LT1 300-940

Part number: 300-940

NOTE: These only fit N/A engine cylinder heads. LT4 have a different bolt pattern and this will not bolt to the LT4 cylinder head. 
Holley's new single-plane Gen V LT intake manifold was designed with an optimized runner layout and constant cross-sectional area, resulting in a broad torque curve with the best vehicle performance from 2500-7000 RPM. This 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 300-940 is meant for street and performance engine applications with 5.3 to 6.2+ liters of displacement and maximum engine speeds of 6000-7000 rpm (depending on the engine combination). This single-plane design provides the lowest throttle body flange height possible while providing maximum performance all the way to 7000 rpm. The cast aluminum construction makes this manifold a great choice for centrifugal blowers, turbochargers, or NOS applications. These intake manifolds are sold for pre-emissions control applications only and will not accept stock components and hardware.


  • 2500-7000 RPM power band
  • 4150 / 4160 Square bore flange
  • Optimized runner layout and constant cross sectional area - broad torque curve, best vehicle performance from 2500-7000 RPM
  • Minimum carb flange height - fit in vehicles with minimum hood modifications
  • Provides classic engine bay look of carb 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" to the lifter valley cover flange at the engine block front flange and bellhousing flange
  • Port size - 2.33" height x 1.27" wide
  • Includes FKM o-ring intake to cylinder head gaskets