SKU: 49603279757

Holley Modular Lo-Ram EFI Manifold LS1/2/6 - 300-621BK

Sale price$494.98 Regular price$549.98
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Ships within 48 hours · Estimated delivery Jul 21 - Jul 26

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Description

Holley Modular Lo-Ram EFI Manifold LS1/2/6 - 300-621BKOverview: The Holley LS1 2 6 Lo Ram intake manifold kits are designed for GM LS Gen III and IV engines equipped with GM LS1 2 6 (cathedral port) cylinder heads. These intake manifolds will work with OE or aftermarket cylinder heads. The Lo Ram intake manifolds are designed for forced induction (supercharged or turbocharged) engine applications and the 105 mm throttle body part number 112 581 or similar models. The base intake manifold is designed with

Overview:

The Holley LS1/2/6 Lo-Ram intake manifold kits are designed for GM LS Gen III and IV engines equipped with GM LS1/2/6 (cathedral port) cylinder heads. These intake manifolds will work with OE or aftermarket cylinder heads. The Lo-Ram intake manifolds are designed for forced induction (supercharged or turbocharged) engine applications and the 105 mm throttle body part number 112-581 or similar models. The base intake manifold is designed with a lower overall height to fit under a stock or mildly modified hood in the front-feed configuration. The 300-621 Lo-Ram front-feed plenum entry was configured to provide a very low profile modular intake manifold suitable for turbocharged or centrifugally supercharged engines. The fuel rail kits come with two sets of brackets. A set for long (usually standard length) fuel injectors and a set for short (such as Pico, or LS7) fuel injectors.

Features:

  • Designed for GM LS Gen III and IV engines equipped with GM LS1/2/6 (cathedral port) cylinder heads
  • Designed for forced induction (supercharged or turbocharged) engine applications with peak power at 7000-8000 rpm depending on the application.
  • With forced-induction and the short runner length the engine rpm at which peak power occurs is more likely to be coupled to the supercharger or turbocharger being used
  • Modular design allowing the use of front-feed plenum entry
  • Intake design facilitates custom inlet duct and throttle body placement
  • Low height to fit under a stock or mildly modified hood in the front-feed configuration
  • Front entry plenum flange allows design & fabrication of special throttle body adapters or inlet ducts for custom installations
  • Clears 4th Gen Camaro and C5 Corvette cowls and hoods without modification
  • High volume fuel rails and mounting hardware included with ¾”-16 o-ring ports (8 AN)

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Brand Holley EFI
Color Black
Construction Cast
Emission Code 3
Engine GM Small Block Gen III/IV (LS Based)
Finish Black
Flange Style EFI
Front Height 6.86" height with throttle body adapter
Fuel System Type EFI
Manifold Type Lo-Ram
Product Type Manifold
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: 49603279757

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Gretchen
Whiting, US
★★★★★ 5
Great for sensitive skin and actually dries clear!
Set name: Body - 3 oz., Set name: Body - 3 oz.
I'm trying to be on top of my sunscreen application after YEARS of never wearing it. My skin is extremely sensitive and prone to eczema. Any chemical sunscreen that was applied to my body (especially the elbow/knee pits) would cause me to break out in horrible eczema patches. I switched to mineral sunscreen, but everything left a ghostly white sheen. Luckily, this sunscreen does exactly as advertised. I've been using it daily for a week straight, and I have had no problems with it. The consistency of this product is thick, kinda sticky at first, and a bit hard to blend/spread out, but I think that's bound to happen with any sunscreen that's actually protective. It may also seem that it leaves a white cast initially, but after letting it dry for a minute or two, it becomes clear. Overall I can't recommend this enough, and I'm glad to finally have a sensitive-skin-friendly mineral sunscreen that doesn't leave a white cast :)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
D
Verified Purchase
DsD
Belleville, US
★★★★★ 5
Where has this been my whole life
Set name: Face - 1.7 oz., Set name: Face - 1.7 oz.
Let me give you some background. I’m middle eastern. That means I tan well but have two different skin tones; my January skin and my July skin. I wear a watch and I’ve been out of the sun since September. My tan hasn’t totally faded but the lighter band, that’s my real skin color. That’s how I want to be all over. I always try to make better choices in my skin products. I have tried so many mineral based sunscreens for my face and body but I usually end up returning to a chemical based one for several reasons. HOWEVER, I have finally found the product I’ve been searching for. Blue Lizard leaves no white cast on my skin. It’s easy to rub in. It also does not get trapped in my dense, black eyebrows the way other products did. It would gross me out and look like I had flakes in my eyebrows. I just spent the week at Universal Studios and I did not burn. I didn’t tan either, which is great. Tanning is also a sign of sun damage. Chemical or mineral sunscreens often prevent sunburn but I still tan. I don’t want either. I am sold and will continue to buy this product. I feel great about that it has safer and better quality ingredients.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2026
D
Verified Purchase
D. Kraus
Bozeman, US
★★★★★ 5
Works well but oily.
Set name: Face - 1.7 oz.
This works well but is not ideal if you want to wear under makeup. It has a very oily consistency. Price is good.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 1, 2025
R
Verified Purchase
RDL
New York, US
★★★★★ 3
packed poorly, no respect for customer
Set name: Face - 1.7 oz.
Nice product Poor packaging Wonder if grey market
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026
J
Verified Purchase
Janet
Charlottesville, US
★★★★★ 5
Better value & quality
I was using the Paula’s brand but stopped ordering because the price kept going up. This came up in my search and it’s almost the same except it has a stronger concentration & has a few more added benefits. It’s also about half the price. This product works great & I’ve been using TruSkin Vit. C moisturizer for years now so I knew their other products work for me and are good quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026

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