SKU: 89939565797

Holley LS1/LS2/LS6 Hi-Ram Intake Manifold - Black (HO300-227BK)

Sale price$985.50 Regular price$1095.00
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Description

Holley LS1/LS2/LS6 Hi-Ram Intake Manifold - Black (HO300-227BK)HO300 227BK EFI HI RAM BASE ONLY LS1 LS2 Manifold Base Only Suit EFI Application Part Number: HO300 227BK The Holley GM LS1 LS2 LS6 Modular Hi Ram Intake Manifold is introduced as a cost effective alternative to fabricated sheet metal for high performance applications where induction system height is not limited. Coupling this Hi Ram intake with the high flowing LS1 LS2 LS6 style cylinder heads has outstanding potential for N A and forced induction

HO300-227BK - EFI HI-RAM BASE ONLY LS1 LS2

Manifold Base Only Suit EFI Application

Part Number: HO300-227BK

The Holley GM LS1/LS2/LS6 Modular Hi-Ram Intake Manifold is introduced as a cost effective alternative to fabricated sheet-metal for high-performance applications where induction system height is not limited. Coupling this Hi-Ram intake with the high flowing LS1/LS2/LS6 style cylinder heads has outstanding potential for N/A and forced induction applications at a budget-minded cost. Aggressive, bold, race-bred styling will make bad intentions clear for drag race, muscle car, marine, off-road, sandrails, pulling trucks, track, street-rod applications and more!
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.
Intended for use on N/A or forced induction engines in the 6.0 to 7.0+ liter range, max power at 7000-8000+RPM.
Features:
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

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Exchange/Return Notes
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SKU: 89939565797

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Summer C
Dallas, US
★★★★★ 5
Got the job done
Color: Black, Size: Standard
Solid product. Fast delivery
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Reviewed in the United States on January 12, 2026
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ARoberts
Draper, US
★★★★★ 5
Metal VESA Mount
Great spacesaver for desk. Easy on-monitor installation and I couldn’t beat the price.
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Reviewed in the United States on April 18, 2026
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Guillermo Loor
Grantham, US
★★★★★ 5
Nice for cable management
Real metal so it is very sturdy and if you tighten your screw it will be very stable too. I out it next to my monitor mount which provide a nice setup for cable management. It fits perfectly to a VESA 100x100 mount. I have a similar setup in my office but under the desk which makes it versatile.
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Reviewed in the United States on May 18, 2026
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Amazon Customer
Battle Creek, US
★★★★★ 5
Works awesome
Worked great! Helped to clean up clutter on my desk
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Reviewed in the United States on March 28, 2026
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Luxario
Waukegan, US
★★★★★ 5
Fits HP G2 dock
I have this mounting an HP-G2 Dock on the back of my Samsung 28inch 4K monitor. I used an additional flat plate to mount this to the left with the monitor arm going the plate and into the monitor. So good I bought a second one for my co worker so our desk don't have wires on them now.
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Reviewed in the United States on February 25, 2026

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