SKU: 15445299660

Holley LS1/LS2/LS6 Hi-Ram Intake Manifold (HO300-227)

Sale price$907.65 Regular price$1008.50
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Description

Holley LS1/LS2/LS6 Hi-Ram Intake Manifold (HO300-227)HO300 227 EFI HI RAM BASE ONLY LS1 LS2 Manifold Base Only Suit EFI Application Part Number: HO300 227 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

HO300-227 - EFI HI-RAM BASE ONLY LS1 LS2

Manifold Base Only Suit EFI Application

Part Number: HO300-227

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

Shipping Notes
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Exchange/Return Notes
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SKU: 15445299660

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4.1 ★★★★★
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Verified Purchase
Diane Dobry
West Palm Beach, US
★★★★★ 5
My big red bread and soup pot is just what I needed
Color: Red
Sturdy, heavy duty, nice sized Dutch oven. Good for baking bread , making soup, and a large casserole. Good quality, nice color
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
F
Verified Purchase
Fidel Farm
Charlottesville, US
★★★★★ 5
Great value and great quality
Color: Cream White
Excellent heavy-duty quality and it looks great sitting out on my stovetop. I've prepared several meals plus baked bread in the oven in this and it's easy to clean and holding up really well. Very reasonably priced too!
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Reviewed in the United States on March 25, 2026
C
Verified Purchase
Charli
Birmingham, US
★★★★★ 5
Love this Dutch oven!
Color: Grey
Bought this to start making sour dough in I havnt used it for that but have used it to make soup and love it! Only downfall is the oven mits it comes with are a little small for the handles. Size is perfect! Love the color grey! Very durable as well and easy to use and clean!
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Reviewed in the United States on April 8, 2026
J
Verified Purchase
Jeremiah B.
Alexandria, US
★★★★★ 5
Nice Cast Iron Dutch Oven
Color: Red
This cast iron dutch oven is spacious and effective. Nice looking, and it is easy to clean as they claim.
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Reviewed in the United States on April 20, 2026
K
Verified Purchase
Kim k
Pawtucket, US
★★★★★ 4
Great quality
Color: Pink
Not the pretty pink that’s in the advertising photos they’re using, and my camera is always spot on with colors. Heavy and a great pot though!
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Reviewed in the United States on June 7, 2026

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