Holley Hi-Ram Lower Manifold - GM LS1/LS2/LS6 - 300-226
SKU: 84601410627

Holley Hi-Ram Lower Manifold - GM LS1/LS2/LS6 - 300-226

Sale price$382.48 Regular price$424.98
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Description

Holley Hi-Ram Lower Manifold - GM LS1/LS2/LS6 - 300-226Overview: The Holley GM LS1 LS2 LS6 Modular Hi Ram Intake Manifold is introduced as a cost effective alternative to fabricated sheet metal for high performance applications where induction system height is not limited. Coupling this Hi Ram intake with the high flowing LS1 LS2 LS6 style cylinder heads has outstanding potential for N A and forced induction applications at a budget minded cost. Aggressive, bold, race bred styling will make bad intentions

Overview:

The Holley GM LS1/LS2/LS6 Modular Hi-Ram Intake Manifold is introduced as a cost effective alternative to fabricated sheet-metal for high-performance applications where induction system height is not limited. Coupling this Hi-Ram intake with the high flowing LS1/LS2/LS6 style cylinder heads has outstanding potential for N/A and forced induction applications at a budget-minded cost. Aggressive, bold, race-bred styling will make bad intentions clear for drag race, muscle car, marine, off-road, sandrails, pulling trucks, track, street-rod applications and more!  The base is designed to be modular in configuration to accept a wide range of carbureted and EFI tops and to be attractive to builders and fabricators as the foundation for custom induction systems.  Runner length and the tapered cross-section designed to perform well for a wide range of engine configurations  EFI fuel rails are machined for -8AN O-ring Fittings with passages large enough to accommodate high fuel flows and dampen pressure pulsations in the fuel system and come standard with EFI Hi-Ram kits.  Cast aluminum construction.  Intended for use on N/A or forced induction engines in the 6.0 to 7.0+ liter range, max power at 7000-8000+RPM.

Features:

  • Port Size – 2.49” Height x 1.21” Wide
  • Mounting Flange Gasket Type – Standard LS3 Molded O-Ring
  • Plenum Top Gasket Type – 3/32” Round O-ring Cord
  • Runner Length – 6.58”, As-Cast Runner Cross-Sectional Area – Tapered 4.25 in² to 2.53 in²

 

Application:

Year Make Model Submodel Engine Size
Universal

 

Specs:

Brand Holley
Color Natural
Construction Cast
Emission Code 3
Engine GM LS1/LS2/LS6
Fuel System Type Carb
Product Type Manifold
Type of Component Lower 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: 84601410627

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Randy Shiverdecker
Los Angeles, US
★★★★★ 5
Better than I expected.
Size: 9.5" x 10.9" x 2.1"
Fits perfectly. Easy to install. As good of quality as the original equipment filter.
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Reviewed in the United States on January 9, 2026
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Victor Escobar
Belleville, US
★★★★★ 5
Great
Size: 9.5" x 10.9" x 2.1"
Excellent product! My car really needed it. Super fast delivery and the best price. I'm super happy with this product.
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Reviewed in the United States on November 12, 2025
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Gladys
Natrona Heights, US
★★★★★ 5
Honda crv filter
Size: 9.5" x 10.9" x 2.1"
Good cabin filter for my 2019 Honda crv
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Bob Grace
Whiting, US
★★★★★ 5
Perfect Fit and Great Performance
Size: 15"+15"+13"
These 5 PLUS wipers fit my Wrangler JK perfectly and were super easy to install. The front and rear blades wipe clean with no streaks, even in heavy rain. They feel just like OEM quality but cost a lot less. Great value for a full 3‑blade set. Highly recommend for any 2007–2018 JK owner.
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Reviewed in the United States on May 28, 2026
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Bermuda Shorts
Pawtucket, US
★★★★★ 5
Excellent replacement blades
Size: 26"+16"+14"(B)
Fit my 2023 Mazda CX-30 perfectly. Challenging removing the original Mazda front blades. Very easy installing these new blades. I had to remove the rear wiper arm to install the new rear blade. first, lift the cover at the wiper arm pivot point to access the fastening nut. Loosen and remove the nut and washer with a 13mm socket. Replace the wiper and fasten the wiper arm with the original washer and 13mm nut. Snap down the pivot cover. The new blades operate quietly and thoroughly remove water from the front and rear windows.
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Reviewed in the United States on May 23, 2026

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