SKU: 83191920768

Holley LS Hi-Ram EFI Manifold - 300-123

Sale price$539.98 Regular price$599.98
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Description

Holley LS Hi-Ram EFI Manifold - 300-123Overview: 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

Overview:

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 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

 

Application:

Year Make Model Submodel Engine Size
Universal

 

Specs:

Brand Holley EFI
Color Aluminum
Construction Cast
Emission Code 3
Engine GM Small Block Gen III/IV (LS Based)
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: 83191920768

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M
Verified Purchase
MP
Pawtucket, US
★★★★★ 5
So far working great!
Style: Gift Style, Style: Gift Style
Got this for my partner that needed an electronic wine opener to more easily open bottles. So far it is working great and making it much easier. I like the additional accessories and the look and feel of the opener. It looks great on our bar and a nice addition to our bar tool collection.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 16, 2025
D
Verified Purchase
David S
Belleville, US
★★★★★ 5
Great value electric wine opener kit!
Style: Gift Style
Easy to use this opener! A great kit for the price, and it comes with a nice little stand so I won’t lose all the separate pieces! Would make a great gift for any wine lover
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 7, 2026
J
Verified Purchase
Jessica Teixeira de Paula
Grantham, US
★★★★★ 5
Love It
Style: Gift Style
Very good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
T
Verified Purchase
Teri
New York, US
★★★★★ 5
Great gift idea
Style: Gift Style
This is a great gift for someone. We bought one for ourselves and loved it. Now we are starting to give this as gifts to others.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 7, 2026
B
Verified Purchase
Bubba Fipps
Draper, US
★★★★★ 5
5 stars for the opener but the accessories........
Color: 5-in-1 Battery Operated Wine Set - Silver
Returned one of these because the wine sealer did not work. It wouldn't hold a vacuum. Here's the thing. I'm not going to use that vacuum sealer and I don't care about "aerating" my wine with the included pourer. And I will SELDOM use the wine stopper because well ....... A bottle of wine having anything left in it after opening around here is like a blue moon on Christmas. What can I say. But I just can't stand paying for something that doesn't work, even if I'll never use it. Anyway, the wine opener itself is a champ. I've owned a bunch of wine openers. This opens bottles faster than any opener I've ever owned and that includes rechargeable openers 3 times what I paid for this opener. It's worth every penny. We drink a fair amount of wine around here so this thing gets used a lot. I've never replaced the batteries. It's not even remotely slowing down. It just keeps popping out corks and it's been months. Considering what this opener cost I don't see how you can go wrong with this purchase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 3, 2026

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