SKU: 71932378672

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

Sale price$449.98 Regular price$499.98
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Description

Holley Modular Lo-Ram EFI Manifold LS1/2/6 - 300-621Overview: 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 Silver
Construction Cast
Emission Code 3
Engine GM Small Block Gen III/IV (LS Based)
Finish Satin
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: 71932378672

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Joel Barrera
San Leandro, US
★★★★★ 1
Mala calidad y mal empaquetado
Size: One Size, Color: White/Black/Tan, Size: One Size, Color: White/Black/Tan
Mal empaquetado de verdad párese que lo sacaron de la basura voy ha devolverlo
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Reviewed in the United States on March 14, 2025
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DailyAmazonShopper
West Palm Beach, US
★★★★★ 5
Love this hat!
Size: One Size, Color: White
The American Cattle Bull spur hat is simple class. The white color is so trendy and chic, and the cattle horns with spurs on the ends look very cool. It is an adjustable hat to fit a wide range of head sizes, and it is a quality flat-brimmed cap. I prefer a more rounded bill, so I have bent it and molded it to be more traditional baseball shape.
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Reviewed in the United States on May 5, 2025
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Edder A. Valdez
Draper, US
★★★★★ 3
Fits good feels cheap
Size: One Size, Color: White/Black/Tan
At first glance this feels like it was put together by cheaper materials. The fit is good but the packaging didn’t help. It came with the front crushed. Hopefully this will go back now that I have it out of the packaging but that we will see in the next day or so. It’s comfortable on your head. The style looks good and the colors make for a balanced look. Blends in well with various colors. Just not sure if the materials will make for a long lasting hat.
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Reviewed in the United States on October 31, 2025
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C. Carruthers
Natrona Heights, US
★★★★★ 5
Nice white hat from American Cattle Co.
Size: One Size, Color: White
Good quality white hat- very giftable! This a very cool hat from the American Cattle Co. The nice white hat with a rope and longhorn keeps up with current hat trends, while also having a very classic "trucker" look. I even left the tag on (I never do that, but it looks like a cattle tag and I thought it was funny and works with the hat theme).
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Reviewed in the United States on May 5, 2025
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Amber Reed
San Leandro, US
★★★★★ 4
Nice flat bill hat
Size: One Size, Color: White
My husband says this is a comfortable hat. It was a little hard to shape up when it arrived, but overall the quality of the hat is nice. Nice and white and a mesh back to it. The design is a burnt orange color. Nice fit and adjustable in the back.
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