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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Donnie Lee
Fort Morgan, US
★★★★★ 5
Nice clean black, I did get the leg area tailored for his frame
Color: Black, Size: X-Small, Color: Black, Size: X-Small
Its worth the purchase. Purchased for prom and it ate!!! Good quality as well. Will purchase again.
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Reviewed in the United States on April 2, 2026
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Leslie
Birmingham, US
★★★★★ 3
No bow tie
Color: Burgundy, Size: XX-Large
Perfect fit for my son he's 6'2" about 220lbs. He ordered 2XL . I would've gave it 5 stars but he did not receive the bow tie, and his prom is tomorrow! Now I gotta go out snd spend more money buying the bow tie separately.
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Reviewed in the United States on May 22, 2026
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Jamie B.
West Palm Beach, US
★★★★★ 5
Sharp suit
Color: Black, Size: X-Small, Color: Black, Size: X-Small
The quality of the suit is very nice. The material feels thick and does not feel cheap at all. My son and I were both very pleased with this three piece suit altogether. We went off of size recommendation and due to personal preference we both agreed if we weren’t already in time crunch we would’ve sized up one size. Still managed to make it work and looked very sharp. He is 5’10” 150lbs - size ordered extra small
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Reviewed in the United States on June 5, 2026
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KEllwood
Grantham, US
★★★★★ 5
Great shirt
Size: Large, Color: Grey
Great shirt with a good price ..nice fit & nice material . Looks great when ironed !!
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Reviewed in the United States on April 1, 2026
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michael h.
San Leandro, US
★★★★★ 5
Wonderful product
Size: Large, Color: Sky Blue
Great Shirts this is the second set I have bought and they wear nicely and fit well
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Reviewed in the United States on April 15, 2026

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