Holley EFI Hi-Ram Lower Manifold, Black (GM LS1, LS6 & LS2)

LS1/LS2/LS6 Cathedral Port EFI Base Only-Black

The base is designed to be modular in configuration to accept a wide range of carbureted and EFI tops and to be attractive to builders and fabricators as the foundation for custom induction systems.

Runner length and the tapered cross–section designed to perform well for a wide range of engine configurations

EFI fuel rails are machined for –8AN O–ring Fittings with passages large enough to accommodate high fuel flows and dampen pressure pulsations in the fuel system and come standard with EFI Hi–Ram kits.

Cast aluminum construction.

• Port Size - 2.49" Height x 1.21" Wide
• Mounting Flange Gasket Type - Standard LS3 Molded O-Ring
• Plenum Top Gasket Type - 3/32" Round O-ring Cord
• Runner Length - 6.58", As-Cast Runner Cross-Sectional Area - Tapered 4.25 in² to 2.53 in²
• Black