SKU: 34045364280

Holley LS Hi-Ram EFI Manifold - 300-125

Sale price$607.48 Regular price$674.98
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Description

Holley LS Hi-Ram EFI Manifold - 300-125Overview: 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:

  • 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.
  • 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
  • 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)
  • Runner Length – 6.29”, As-Cast Runner Cross-Sectional Area – Tapered 4.67 in² to 2.84 in²

 

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: 34045364280

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John
Natrona Heights, US
★★★★★ 3
Made cheaply.
Color: White, Size: 3 Panel
Seems fairly sturdy ( 3 panel white) but made with extremely cheap materials that will not last. The cheap materials are very noticeable with the white screen. No assembly needed. Would not but again.
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Reviewed in the United States on November 24, 2025
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L. Sun
Omaha, US
★★★★★ 5
Beautiful brown privacy screen!
Color: Brown, Size: 3 Panel, Color: Brown, Size: 3 Panel
Why did you pick this product vs others?: The measurements were perfect for what I was looking for.  The length and width are the same as my rattan raised garden bed which I have placed in front of the screen on the deck.  This secures the screen so there is no issue of weather conditions. I have been looking for weeks for a privacy screen at every possible product and combination. and almost gave up when I noticed the measurements of the screen would fit behind my raised bed!  Now I am going to plant some flowers in it.  This is a terrific buy for me.  i am so happy! Looks great: The perfect size, color, and design match my brown deck rattan furniture. Ease of assembly: No assembly which is nice in this hot weather! Room divider: It provides much needed privacy
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Reviewed in the United States on July 8, 2025
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Verified Purchase
Debbie Flynn
Dallas, US
★★★★★ 5
Love it it was perfect for what I needed it for. Good quality!
Size: 4 Panel, Color: Black
It like a very dark chocolate brown/black. What I liked most about it is that you just pull it out of the box take the long plastic film off of it and it's ready to go. It has protective feet on the bottom. It's very attractive and it was so easy. It's so nice when you have a product you don't have to assemble.
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Reviewed in the United States on May 13, 2026
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Verified Purchase
Suphisara B.
Charlottesville, US
★★★★★ 5
Good quality. Nice design
Size: 4 Panel, Color: Chocolate Brown
Love it. Beautiful and good material. Just a little bit too high for my room.
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Reviewed in the United States on May 7, 2026
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GrandmaJeanie
Belleville, US
★★★★★ 4
Shipped quickly and as described
It was what I expected as functionality, lightweight and easy to move about. I plan to use it in my enclosed patio to obscure weight bench and wts. My only complaint is that the bamboo cover on one edge is not secure. But I will probably use a magic marker to cover the natural back that is showing. I don’t have time to return it as my event is coming soon.
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Reviewed in the United States on July 3, 2025

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