SKU: 34827192522

Holley Modular Lo-Ram EFI Manifold LS1/2/6 - 300-620

Sale price$459.88 Regular price$510.98
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Description

Holley Modular Lo-Ram EFI Manifold LS1/2/6 - 300-620Overview: 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 low height to aid the packaging of a plenum mounted air-to-water intercooler in a top-feed configuration. The 300-620 top-feed plenum entry configuration is designed to allow the included Hi-Ram 105 mm plenum top to be fitted to a low-profile base intake manifold. The short runner, low-profile base intake manifold intended for forced induction applications was conceived to package with an air to water plenum mounted intercooler with a shorter overall height than possible with other existing intake manifolds. 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
  • Modular design allowing the use of the included top-feed plenum entry
  • Low height to aid the packaging of a plenum mounted air-to-water intercooler in a top-feed configuration or to fit under a stock or mildly modified hood in the front-feed configuration
  • 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 9.07" without Intercooler
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:
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  • 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: 34827192522

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KimberlyK
Lake Worth, US
★★★★★ 5
Very good quality.
Color: Black, Size: Small
So nice to have for keeping my stuff organized. Easier to keep track of my remotes.
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Reviewed in the United States on April 29, 2026
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The Movieman
Waukegan, US
★★★★★ 5
Simple but does the job
Color: Black, Size: Small
Simple and does the job. Sturdy as well to hold my remotes.
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Reviewed in the United States on May 25, 2026
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Lisa M. Hogan
Battle Creek, US
★★★★★ 5
Adoreable earrings
Color: Black
Casual and cute earrings! I also have these in the gold/white color and they are in my regular email rotation. Cute and comfortable earrings that can go with just about any outfit. They look more expensive than they are!
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Reviewed in the United States on January 13, 2026
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Charity
Chelsea, US
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Must buy!
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Very well Made. Beautiful & well Worth the money!
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Kristine E
Dallas, US
★★★★★ 5
Gorgeous
Color: White
Beautiful. Exactly as pictured. I have been wearing them daily.
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Reviewed in the United States on March 24, 2026

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