Holley Hi-Ram Lower Manifold - GM LS1/LS2/LS6-Black 300-226BK
SKU: 66198942664

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

Sale price$382.48 Regular price$424.98
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Description

Holley Hi-Ram Lower Manifold - GM LS1/LS2/LS6-Black 300-226BKLS1 LS2 LS6 Cathedral Port Carbureted Base Only (Plenum Top Mounting Fabrication Flange Available) 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

LS1/LS2/LS6 Cathedral Port Carbureted Base Only (Plenum-Top-Mounting Fabrication Flange Available)

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!

NOTES: These parts should be used for the following applications: Racing/Performance/Street Rodder where hood restrictions are NOT a consideration.

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 in? to 2.53 in?

Specs:

Basic Operating RPM Range 3500-8000Revolutions per Minute
Brand Holley
Carburetor Studs Included No
Color Black
Construction Cast
EGR Port No
Emission Code 4
Engine GM LS1/LS2/LS6
Finish Black
Fuel Injectors Included No
Fuel Rail(s) Included No
Fuel System Type Carb
Gasket Or Seal Included No
Grade Type Performance
Intake Port Gasket(s) Included No
Material Aluminum
Nitrous Bung(s) Included No
Plenum Finish Black
Product Type Intake Manifold Base
Removable Runners No
RPM Power Band 3500-8000 RPM
Single Or Dual Plane Type Single Plane
Throttle Body Included No
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:
  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: 66198942664

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Laura Shearn
Lake Worth, US
★★★★★ 1
Watch insurance
I purchased a citizen watch from Amazon and decided to get warranty they was pushing 🫸 not knowing I was given a 5 yr warranty from citizen company with purchase! Cannot give opinions on it because I have gotten no information about this program and have not had to use it... but I can contact them anyway....
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Reviewed in the United States on December 1, 2023
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Ryan N
Bozeman, US
★★★★★ 5
Solid Timepiece
Color: Grey, Color: Grey
Overall, I’m really happy with this watch. The only small complaint I have is adjusting the bracelet. I picked up a $15 watch repair kit to size it myself, and while it wasn’t difficult, the push-pin links were definitely more of a hassle than I expected—especially compared to my Oyster bracelet with screws. Just a bit time-consuming, nothing major. Once that part was done, though, I’ve loved everything about it. It’s a great everyday watch, surprisingly accurate, and one of those pieces you just don’t get tired of looking at. For what it’s worth, this is coming from someone who also owns a Submariner—not trying to flex, and yes, I fully realize how douchey that sounds. Nothing screams “please validate my life choices” like bragging about an overpriced watch that basically just tells time. But in all seriousness, I only mention it to give some perspective on how much I genuinely enjoy this one.
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Reviewed in the United States on December 10, 2025
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justin himebaugh
Birmingham, US
★★★★★ 5
Great watch!
Color: Grey
What a great watch for the money, Tissot never disapoints!
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Reviewed in the United States on April 21, 2026
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Chris Antos
West Palm Beach, US
★★★★★ 5
Works great
Color: Grey
Watch looks great and works great
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Reviewed in the United States on April 26, 2026
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Verified Purchase
Tony Lorenzo
Charlottesville, US
★★★★★ 5
Calidad y estilo
Color: Grey
Está muy bonito y queda muy elegante para todas las ocasiones.
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Reviewed in the United States on May 5, 2026

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