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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Helena Ronide Pinchinat
Battle Creek, US
★★★★★ 5
Boosted Energy & Great Quality Cinnamon Supplement! ✨💪
Size: 60 Count (Pack of 1)
I’ve been taking these Ceylon Cinnamon Capsules for a few weeks now, and I’m honestly impressed with the results. I’ve noticed better energy levels throughout the day, less fatigue, and overall I just feel healthier. The capsules are easy to swallow, have no bad aftertaste, and the quality feels premium. I also like that they’re made with true Ceylon cinnamon, which is known to be a cleaner and safer option compared to regular cinnamon supplements. Great for supporting metabolism and daily wellness. Definitely a product I’ll continue using and highly recommend!” ✨💪
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Reviewed in the United States on May 18, 2026
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Stephen
Lowell, US
★★★★★ 5
Noticeable Comfort and Joint Support
Size: 60 Count (Pack of 1)
The Ceylon Cinnamon Capsules – Extra Strength have been a great addition to my daily routine, and I’m genuinely impressed with the results. After consistent use, I noticed reduced knee pain, and the swelling in my knees has also gone down, which has made a real difference in day-to-day comfort and mobility. The capsules are easy to swallow and gentle on the stomach, which I really appreciate. Knowing this is Ceylon cinnamon—often considered higher quality than standard cinnamon—gave me confidence in the product, and it definitely feels well-made and thoughtfully formulated. Over time, I found that stiffness decreased and movement felt easier, especially after being on my feet for long periods. While results can vary from person to person, this supplement worked well for me and supported my overall joint comfort without any unwanted side effects. Overall, this is a high-quality cinnamon supplement that delivered real, noticeable benefits for my knees. If you’re looking for a natural supplement to support comfort and reduce inflammation-related discomfort, these extra-strength Ceylon Cinnamon capsules are absolutely worth trying.
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Reviewed in the United States on April 10, 2026
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Jerry Rogers
Alexandria, US
★★★★★ 5
Good Product
Size: 60 Count (Pack of 1)
Easy to use, no bitter after-taste.
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Reviewed in the United States on May 18, 2026
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Julie b
Lowell, US
★★★★★ 4
To soon to tell.
Size: 60 Count (Pack of 1)
It's really too soon to tell. So far I have noticed a drop in my glucose level which is why I ordered this.
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Reviewed in the United States on March 26, 2026
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Sweet Mud
Draper, US
★★★★★ 5
Potent cinnamon
Size: 60 Count (Pack of 1)
Works incredibly well! Great in controlling blood sugar!
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Reviewed in the United States on May 30, 2026

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