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 Aug 25 - Aug 30

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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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Shahram Robotics
Draper, US
★★★★★ 5
Great price for a great shirt
Very nice men’s button down short sleeve shirt. Material is lightweight and breathable, easy to wash, and easy to iron. True to size. Well made. Goes with anything.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2025
A
Arkady K
Lake Worth, US
★★★★★ 3
Nice, but nowhere near slim fit
This cotton linen short-sleeve shirt is a decent option for summer casual wear. The fabric blend of cotton and linen seems to be of good quality - breathable and lightweight for warmer weather. It has a nice soft feel without being see-through. The design is fairly standard with the short sleeves, button front, and chest pocket. The imitation rhino horn buttons are an interesting detail that adds a touch of style. However, I found the fit to be quite baggy and loose around the midsection despite being labeled as "slim fit." The shirt length was also a bit longer than I preferred. While the shirt is billed as versatile for different occasions like beach vacations or evenings out, I think they are better suited for very casual daily wear or running errands. The loose, untucked fit looks a bit sloppy for anything dressier in my opinion. On the upside, they are low maintenance in terms of washing and drying. The sizing chart was accurate enough as far as chest and shoulder measurements, but the roomy cut threw off the "slim fit" sizing for me. Overall, these aren't bad summer shirts if you prefer a looser, more relaxed fit. The material seems breathable and of decent quality for the price. But the baggy bottom half and lengthier shape weren't ideal for my taste. They get the job done for casual wear but don't quite live up to the "slim fit" promise in the product description.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2024
H
Verified Purchase
Happy grouch
Los Angeles, US
★★★★★ 1
Impossible to iron
I used spray, shower steam and nothing would even start to get the wrinkles out. Unless you are prepared to do some heavy ironing, don't bother with this shirt.
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Reviewed in the United States on September 10, 2024
K
Ken
Charlottesville, US
★★★★★ 5
Linen-Cotton Casual Shirt
I live in the subtropics; breathable fabrics are important in your wardrobe. I realize synthetics have benefits, but for me natural fabrics are my preference. Linen and Cotton blend; yes please. I was looking for smart casual, something more than a t-shirt or golf-shirt but less than button-down. Something that would pair well with a nice pair of shorts and look good. And that it does. Sizing is your question. I ordered a large because I often have difficulty fitting at the shoulder; the size chart indicates a medium would probably be better but I am OK with a little baggy casual too. In a brick-and-mortar store, I would normally try both sizes on and select the best fit. The arms and shoulder fit fine, the torso is a bit large. If I wear it to the beach unbuttoned, it looks great.
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Reviewed in the United States on May 18, 2024
R
Richard Bist
Louisville, US
★★★★★ 4
Lightweight but comfortable
I like that this shirt is lightweight and airy - great for warm and humid Florida weather. However, the sizing is off a bit. I received a large, but it fits more like a medium. It’s tight around the shoulders and chest. Still, it’s a nice shirt, but you may want to order a size up.
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Reviewed in the United States on June 2, 2024

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