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Description
Holley EFI LS Hi-Ram Intake Manifolds 300-117BKLS3 HI RAM IM, EFI, 1 X 105MM LS BLACK The Holley GM LS3 L92 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 LS3 L92 style cylinder heads has outstanding potential for N A and forced induction applications at a budget minded cost. Aggressive, bold, race bred styling
LS3 HI-RAM IM, EFI, 1 X 105MM LS-BLACK
The Holley GM LS3/L92 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 LS3/L92 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.
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 92/102mm 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 – 6.50”, As-Cast Runner Cross-Sectional Area – Tapered 4.25 in² to 2.77 in²
Specs
| Brand | Holley EFI |
|---|---|
| Color | Black |
| Construction | Cast |
| Emission Code | 3 |
| Engine | GM LS3/L92 |
| Finish | Black |
| Front Height | 12.32 |
| Fuel System Type | EFI |
| Manifold Type | Hi-Ram |
| Product Type | Manifold |
| RPM Power Band | 7000-8000 |
| Warranty | Limited 90 Day |
| Part Number | 300-117BK |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.7 ★★★★★
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Product Reviews
★★★★★ 5
good value
Style: 20W_USB-C, Size: 6FT
works well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
★★★★★ 5
An absolute must for countertops used as workstations.
Style: 20W_USB-C, Size: 6FT
These were the best thing I did when we had to remodel and I added a large built in countertop. They are made well, and easy to install! They are very versatile since they are designed with both USB-A and USB-C ports along with the standard 110V plugs. I use these with my 3-D printers, laser engravers, computers, printers, and even a few coffee pots!
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Reviewed in the United States on April 21, 2026
★★★★★ 5
No issues, and no instructions.
Style: 20W_USB-C, Size: 6FT
No, you don’t need instructions, because the hole dimensions are in one of the photos. 4” x 1.73” is perfect. Plug it in and all of the ports in both that we bought worked perfectly.
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Reviewed in the United States on March 9, 2026
★★★★★ 5
Exactly what I expected!
Style: 20W_USB-C, Size: 6FT, Style: 20W_USB-C, Size: 6FT
Perfect for recessed lighting in our shiplap wall to go behind the TV. I will be buying these again for future projects I have planned!
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Reviewed in the United States on March 31, 2026
★★★★★ 3
Multiple ports
Style: 20W_USB-C, Size: 10FT
The usb outlet broke within a week of purchase. The rest of the outlets work perfectly. Like that it has multiple ports to plug in.
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Reviewed in the United States on January 26, 2026