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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Ships within 48 hours · Estimated delivery Aug 20 - Aug 25

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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: 35104943012

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Ronald Zabicki
Charlottesville, US
★★★★★ 5
Nice sent works great no dry skin
Scent: Assorted
Great soap
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Reviewed in the United States on May 20, 2026
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Shannon Dallas
Fort Morgan, US
★★★★★ 5
Hyper allergic
Scent: Assorted
Hyper allergic! Great bar soap for men.
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Reviewed in the United States on May 14, 2026
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Ashley
Grantham, US
★★★★★ 5
Smells amazing
Scent: Assorted
Smells amazing,very happy with this
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Reviewed in the United States on March 2, 2026
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Rachael
Battle Creek, US
★★★★★ 5
Thumbs up
I gifted these to my picky husband and they're a hit. Very large bars of soap, they outlast supermarket brands. They smell great and have subtle exfoliation. He likes the way they lather and leave his skin feeling. His favorite is the mint scent. I'm coming back to stock up on that one, and to leave this review.
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Reviewed in the United States on May 25, 2026
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Jennifer
Whiting, US
★★★★★ 5
Worth the price
A box of this soap lasts my son over a year with daily use. He cuts bars in half to put in soap saver bag/scrubber to make them last longer. Great scents, but not overpowering! He says quality is just as good if not better than National Name Brand natural bar soaps. Very affordable considering longevity of each bar. Great for gifts! Comes packaged in sturdy nice looking box with each bar having a nice label around each so you could give as 1 gift or add soaps into a gift basket or container as a variety gift
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Reviewed in the United States on March 16, 2026

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