SKU: 71187843635

Holley LS Hi-Ram EFI Manifold - 300-124

Sale price$607.48 Regular price$674.98
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Description

Holley LS Hi-Ram EFI Manifold - 300-124Overview: The Holley GM LS7 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 LS7 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

Overview:

The Holley GM LS7 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 LS7 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:

  • Runner Length – 6.29”, As-Cast Runner Cross-Sectional Area – Tapered 4.67in² to 2.84 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
  • Total Height with 92/102mm EFI Plenum Top – 12.32” to the lifter valley cover flange on engine block.
  • Base Plenum Top Mounting Flange Height – 8.42” to the lifter valley cover flange on engine block.

 

Application:

Year Make Model Submodel Engine Size
Universal

 

Specs:

Brand Holley EFI
Color Aluminum
Construction Cast
Emission Code 3
Engine GM LS7
Finish Satin
Flange Style EFI
Front Height 12.32 inch
Fuel System Type EFI
Manifold Type Hi-Ram
Product Type Manifold
Rear Height 11.00 inch
RPM Power Band 1500-7000
Warranty Limited 90 Day
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 71187843635

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ElyGar
New York, US
★★★★★ 5
GOOD
Color: Black
The chair was more comfortable than I expected for the price. The back support feels good and the seat does not feel hard after working for several hours. I liked that the wheels roll smoothly and the assembly was pretty simple. The design also makes the office look more modern. So far it feels stable and durable.
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Reviewed in the United States on May 28, 2026
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jerry
San Leandro, US
★★★★★ 4
Back is a little low
Color: Black, Color: Black
Comfort is good went together with no problems
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Reviewed in the United States on May 26, 2026
K
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kelvin7799
Port Orchard, US
★★★★★ 5
Sitting on a very comfortable leather chair
Color: Black, Color: Black
I have been using this chair for a few days. First of all, the installation is very simple and convenient. You can learn it just by looking at the drawings. It takes about 20 minutes to install. The chair is very comfortable to sit on. Its support and comfort are beyond expectations. It can relieve the fatigue of the waist and you won't feel very tired when sitting. The leather material is also good. It can be rotated, moved up and down, and can be moved. The armrests can also be moved up and down. This price is worth it. Overall, I'm very satisfied and comfortable.
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Reviewed in the United States on April 22, 2026
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Free Bird
Whiting, US
★★★★★ 5
Very comfortable chair!
Color: Black
This office chair is a great addition to my bedroom. It offers really nice comfort because of its thick and cushioned back which helps make long hours at a desk much more enjoyable. The adjustable height is really nice as it makes this chair extremely versatile. The armrests are sturdy and positioned well for typing or resting your arms. They also move back if you don’t like them.  The assembly was straightforward and didn’t take long as the instructions were clear and easy to follow. The wheels roll really nice and don’t get stuck. This chair is really comfortable and nice. 
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Reviewed in the United States on March 3, 2026
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Jerry
Phoenix, US
★★★★★ 5
Very Comfortable
Color: Black, Color: Black
Very easy to assemble , only 7 steps, and the tools are included.Great quality , material quality is high.The cushion supports my lower back. Very comfortable.price is reasonable.
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Reviewed in the United States on May 2, 2026

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