SKU: 88902945971

Holley LS1/LS2/LS6 Hi-Ram Intake Manifold - Black (HO300-123BK)

Sale price$1496.25 Regular price$1662.50
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Description

Holley LS1/LS2/LS6 Hi-Ram Intake Manifold - Black (HO300-123BK)HO300 123BK EFI HI RAM LS1 2 6 MANIFOLD Suit Single GM LS 102mm Throttle Bod Part Number: HO300 123BK 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

HO300-123BK - EFI HI-RAM LS1-2-6 MANIFOLD

Suit Single GM LS 102mm Throttle Bod

Part Number: HO300-123BK

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:
Base Plenum Top Mounting Flange Height - 8.42" to the lifter valley cover flange on engine block.
Total Height with 92/105mm EFI Plenum Top - 12.32" to the lifter valley cover flange on engine block.
Runner Length - 6.58", As-Cast Runner Cross-Sectional Area - Tapered 4.25 in² to 2.53 in²
Throttle Body Flange Location, with 92/102mm EFI Plenum Top : Height - 8.42" (from engine block lifter valley cover flange), Longitudinal Location - 3.84" (forward from engine block front flange), Angle - 25 deg. (down from vertical)
Plenum Top Gasket Type - 3/32" Round O-ring Cord
Mounting Flange Gasket Type - Standard LS3 Molded O-Ring
Port Size - 2.49" Height x 1.21" Wide

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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SKU: 88902945971

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4.2 ★★★★★
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Verified Purchase
Jamie Morgan
Alexandria, US
★★★★★ 5
Easy to assemble
Color: Black, Size: 4 Panel-88''
Fairly easy to assemble
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
C
Verified Purchase
Crystal
Cuba, US
★★★★★ 5
Great product
Color: Black, Size: 4 Panel-88''
Love this
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Reviewed in the United States on April 23, 2026
J
Verified Purchase
Jeff
Louisville, US
★★★★★ 5
Light weight and large privacy screen
Color: Black, Color: Black
The privacy screen is light weight and of great quality. The screen can block sight and also is easy to set up. It screen is sturdy and stable. It is a cheap solution for separating paces in rooms. The privacy screen is of black color and good good in many places. It can be folded when not used and does not take much space for storage.
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Reviewed in the United States on December 19, 2025
T
Verified Purchase
Tiffany
Lexington, US
★★★★★ 5
Great divider!
Color: Black, Color: Black
This was really easy to set up and really works to decide the room. The material is dark enough that you have your privacy. Good for the price
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 2, 2026
O
Verified Purchase
Olivia Tucker
Chelsea, US
★★★★★ 3
Over all review
Color: Black
It’s not a bad divider, the instructions are okay but once I figured it out on my own it was easy. The quality is fine I like how it’s made of metal. The only downside is fall for me is the height. I’m 5”4” yet it’s suppose to be 6 feet tall but it seems to be a little shorter than that. If it was taller and the instructions a little more clear it would get 5 stars.
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Reviewed in the United States on May 25, 2026

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