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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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18

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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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4.1 ★★★★★
Based on 26 reviews
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Sandy Mayfield
Boise, US
★★★★★ 5
Best Investment Ever! A Vac-Mop!!!
Color: X40 Ultra/ L40 Ultra & P10 Pro /P50 Pro
These are replacement tools that fit our multipurpose vac/mop. This product is the most helpful and productive item we own. My daughter and I are free to do other things while Miss “B” is busy cleaning our floors! Such a backsaver! The floors are cleaner than manually sweeping and mopping them ourselves! It doesn’t get any better than that!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026
B
Verified Purchase
Brianna
Los Angeles, US
★★★★★ 5
This is a Yes!
Color: X40 Ultra/ L40 Ultra & P10 Pro /P50 Pro
I needed to change out my Dreame vacuum accessories but didn’t want to pay the huge amount for the name brand kit, this works beautifully and fit perfectly. I cannot tell a difference and it lasts just as long as the original!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
A
Verified Purchase
Amazon Customer
Lexington, US
★★★★★ 1
Side brushes don't fit.
Color: X40 Ultra/ L40 Ultra & P10 Pro /P50 Pro
The side brushes don't fit L40 Ultra.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
R
Verified Purchase
Randy in Texas
Charlottesville, US
★★★★★ 5
Seems complete…
Color: X40 Ultra/ L40 Ultra & P10 Pro /P50 Pro
I haven’t actually used this kit yet, but it appears to be very complete. The price is good and based on what I see at this point, I would purchase it again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026
T
Verified Purchase
TedG
Port Orchard, US
★★★★★ 3
Good fit and quality - careless packaging
Color: X40 Ultra/ L40 Ultra & P10 Pro /P50 Pro
OK - I'm happy with most of the kit. The dead corner brushes are crammed into small bag and bent out of shape. It looks like 2 of the 6 in the kit I received might be usable. Since I can get 3 of these for the cost of the OEM kit, I suppose I'm still ahead of the game, but it would be nice if a little more care was taken in the packaging.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026

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