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Description
Holley 300-122 LS HI-Ram EFI ManifoldLS1 2 6 HI RAM IM, EFI, 92MM LS TB 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
LS1/2/6 HI-RAM IM, EFI, 92MM LS TB
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 92/102mm 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 92mm 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 – 6.58”, As-Cast Runner Cross-Sectional Area – Tapered 4.25 in² to 2.53 in²
Application
- 1953-2019 Chevrolet Corvette
- 1964-2019 Pontiac GTO
- 1966-2019 Chevrolet Camarro
Specs
| Brand | Holley EFI |
|---|---|
| Color | Aluminum |
| Construction | Cast |
| Emission Code | 3 |
| Engine | GM LS1/LS2/LS6 |
| 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 |
| Part Number | 300-122 |
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
4.5 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 5
SO MUCH SPACE AND IS SO CUTE
Color: Black, Color: Black
I LOVE this bag. To give you an idea, yeah duh it’s cute whatever. BUT let me tell you I brought this to an all day race event and fit my (large) wallet, 2 pairs of sunglasses, all of my lippies, AND NOT ONE BUT TWO FULL BOTTLES OF COKE!!! And it still zipped. Insane amount of space in this thing and it’s so cute too. 10/10 would recommend and I’m buying it in the khaki color too!
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Reviewed in the United States on October 5, 2025
★★★★★ 5
Great casual everyday bag
Color: Dark Red
Love the color, fit and style. It was exactly the kind of casual, comfortable everyday-use bag that I was looking for. There are no compartments but it does come with a little pouch which is nice to store smaller items. Overall, It works really well for me. I just hope that it's durable!
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Reviewed in the United States on April 21, 2026
★★★★★ 5
Soft and vibrant
Color: U Brown
nice bag, very soft, good size and price. Color was true to the picture. Liked the extra zippered purse for stuff.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
NICE BAG
Color: A Black
Beautiful bag, exactly like it appears in the picture. I’ve been using it for months, and it still looks as good as when it arrived. It had a slight odor at first, but that disappeared after two days. I like the fit, the durability, the pocket inside the bag, and the small bag. Great purchase for the money I spent.
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Reviewed in the United States on March 24, 2026
★★★★★ 5
Will purchase again
Color: A Black
I just received my new purse. It is so soft and spacious. I love the extra pouch. It’s really nice to throw across your shoulder and run a few errands. Great purse for the price.
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Reviewed in the United States on May 4, 2026