SKU: 35104943012

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.
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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: 35104943012

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4.6 ★★★★★
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Senior bird
Carnegie, US
★★★★★ 5
Easy of use
Format: Paperback
I created our living trust and wills with the package. Just follow the instructions, answer the questions, and you are done. For simple trust, I would recommend using the software.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
T
Verified Purchase
T. Wingate
Natrona Heights, US
★★★★★ 4
If you order this kit verify that you receive the 2026 book
Format: Paperback
Good software that walks you through the steps to create your will, a trust, and a number of other necessary documents that you might want, or need. The book Amazon shipped was for 2025, not 2026, hence the one star subtraction. The code for the software in the book did not work, probably because it was over a year old. I wanted to get started and didn't want to go through the return process, so I contacted Nolo and they were great. They asked to see a copy of the invoice and once they confirmed it was for 2026 (during the call,) they provided the correct software. While I would have preferred the 2026 book, I suspected the 2025 was close enough, and the software will advise what has changed for anything I do.
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Reviewed in the United States on January 16, 2026
M
Verified Purchase
math_guy51
New York, US
★★★★★ 5
All you need before talking to an attorney
Format: Paperback
Excellent tool. 👍👍👍👍🐼👍
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Reviewed in the United States on May 14, 2026
S
Verified Purchase
sailorman
Lowell, US
★★★★★ 3
Trust is not user-friendly
Format: Paperback
Could not get trust to work as needed. Software is not user-friendly. Nolo no help. Returned.
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Reviewed in the United States on March 22, 2026
K
Verified Purchase
Kenneth Haselhorst
Pawtucket, US
★★★★★ 5
Law
Format: Paperback
I have used this to build a Will and a Trust. Now I will take my papers to a lawyer and see if worked as expected. I think everything should be right but will wait and see. For now I give it 4 stars, but if a lawyer says it is all right, than 5 stars.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026

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