Holley Hi-Ram Lower Manifold – GM LS7 – Black

HOLLEY HI-RAM LOWER MANIFOLD – GM LS7 – BLACK

The HOLLEY HI-RAM LOWER MANIFOLD – GM LS7 – BLACK is a cost-effective, cast aluminum modular intake manifold designed for GM LS7 engines. It supports naturally aspirated and forced induction setups in the 6.0 to 7.0+ liter range, delivering maximum power at 7000-8000+ RPM. Its bold, race-inspired design suits drag racing, muscle cars, marine, off-road, and street-rod applications.

Key Features

• Port Size: 2.49” Height x 1.21” Wide
• Standard LS3 Molded O-Ring Mounting Flange Gasket
• 3/32” Round O-ring Cord Plenum Top Gasket
• Runner Length: 6.29” with tapered cross-section from 4.67 in² to 2.84 in²
• EFI fuel rails machined for -8AN O-ring fittings to support high fuel flow and dampen pressure pulsations
• Modular base accepts a wide range of carbureted and EFI tops for custom induction setups

Fitment

• Designed specifically for GM LS7 engines
• Ideal for naturally aspirated and forced induction applications in 6.0 to 7.0+ liter engines

Note: Verify compatibility with your specific LS7 build and fuel system requirements before ordering. Installation may require tuning for optimal performance.