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.
  • Except Preorder products are shipped in 48 hours.
  • Delivery 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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Rocky Mendoza
Phoenix, US
★★★★★ 4
Cheap and worth it.
Size: 42W x 28L, Color: Black
Cheap and looks nice, tbh. I orders a 42wx28l and it was a nice fit. I order 28L so the seam usually can sit above my ankle or shoe but It was a bit longer compared to my other various pants at 28L, it felt more like a 30L. I’ve noticed the waist seems to fit a bit larger than I’m used to but overall a nice fit and material. One thing worth mentioning is the stitching at the bottom seems a bit loose.
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Reviewed in the United States on January 28, 2026
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JFMP
Alexandria, US
★★★★★ 5
High Quality Cotton, Well Cut
Size: 36W x 32L, Color: Black
I was pretty impressed with the high quality of these pants. Remove the Amazon label and you wouldn't think twice if it had a Gap, Banana Repblic or Levi's instead. They are well cut and well stitched. I ordered black and the color looks great too. Fits to size.
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Reviewed in the United States on May 9, 2026
T
Verified Purchase
tibbs
Alexandria, US
★★★★★ 5
Great fit
Size: 36W x 32L, Color: Dark Khaki
My boys love these pants. College son prefers them when he is golfing. They fit well and are comfortable. He usually wears southern tide brand which are extremely pricey. So happy to have found these. Already ordered in multiple colors. They are nice and thin for Florida weather
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Reviewed in the United States on May 2, 2026
N
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Nandita Pai
Louisville, US
★★★★★ 5
Great Pants
Size: 31W x 28L, Color: Black
I wasn’t sure what to expect when I ordered these, but I’m really glad I did. The pants look even better in person than in the photos , the color is accurate and the fabric has a nice, quality feel to it. The fit is spot on. I bought it in 3-4 colors.
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Reviewed in the United States on April 30, 2026
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Wade M
Boise, US
★★★★★ 3
Decent for the price, but inconsistent quality
Size: 33W x 29L, Color: Dark Grey
Quality can be hit or miss. I ordered several pairs of the same "model" and fit is inconsistent. One pair fit great, another pair of a different color felt 3 sizes too small. Leg width can be slightly different from pant to pant or the legs have a bit of a "twist" sewn in them. For the price, I'm not expecting perfection.
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Reviewed in the United States on April 16, 2026

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