SKU: 24174242011

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

Sale price$481.48 Regular price$534.98
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Description

Holley Modular Lo-Ram EFI Manifold LS1/2/6 - 300-620BKOverview: 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 Black
Construction Cast
Emission Code 3
Engine GM Small Block Gen III/IV (LS Based)
Finish Black
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: 24174242011

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Rob F
Phoenix, US
★★★★★ 4
Definitely worth having the peace of mind of the support from the Asurion team.
Good value and mostly worry free. Took several more steps to complete than originally described. I had to resubmit material and pictures a few times before everything was finally accepted, but in the end I was satisfied with the results.
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Reviewed in the United States on February 13, 2024
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Verified Purchase
DTrain's Wife
Birmingham, US
★★★★★ 5
So worth it - painless
I decided to get the extended warranty for my Black & Decker hand vac. When it stopped holding the charge, I reached out to Asurion. First of all, I love how I don’t have to search through papers and emails to try to find my warranty. It’s right in my Amazon purchases. They immediately started a conversation via text message with me. It was so straightforward to get the information to them. Then they sent me a return label, then Bada Bing, Bada Bang, I sent back my malfunctioning hand back, and they sent me an Amazon gift card. I use the gift card to purchase a New Hands back because I can’t live without it. Everything went so smoothly and it was so quick I highly recommend it for any electronics that you rely on and you would replace if it became inoperable.
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Reviewed in the United States on September 15, 2023
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Verified Purchase
tunemansmom
Chelsea, US
★★★★★ 5
Asurion warranty was very easy to use when my product failes. Very happy with their warranty
Asurion warranty was very easy to use when my product failed. Very happy with their warranty. Bought a black and decker extended warranty on a floor sweeper.
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Reviewed in the United States on December 15, 2024
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Verified Purchase
jcd-apple
Houston, US
★★★★★ 5
Did the right thing to resolve my issue.
Covered my cost with little hassle. Started down the path of going back to manufacturing company but decided to just do a refund. The product was a floor vac that died.
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Reviewed in the United States on June 3, 2025
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DazzlingTam-20
Carnegie, US
★★★★★ 5
Purchase this warranty!
unbelievably fair and reasonable with refunds! Will use forever!
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Reviewed in the United States on March 27, 2026

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