Holley LS1/LS2/LS6 Hi-Ram Intake Manifold (HO300-227)
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
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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SKU: 15445299660

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theresa
Birmingham, US
★★★★★ 2
Plastic stuffing in it
Color: blue
I was concerned when I started finding little pieces of plastic wrap around my house. Where did it come from, I wondered? When my puppy is shark “no stuffing” toy to me, I found the source! The fin he ripped off that crinkled was full of little plastic pieces of plastic wrap. And it was all over the houses.
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Reviewed in the United States on April 14, 2026
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Cathy
New York, US
★★★★★ 5
GREAT PUPPY TOYS!!
Color: green
It’s great for a puppy. My dog Is 2 1/2 years old and still plays with them. They have withstood 2+ years of a puppy chewing on it and playing tug of war constantly. I recommend this toy for puppies and older dogs. Very good quality!
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Reviewed in the United States on January 25, 2026
C
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Carol Gatti
Phoenix, US
★★★★★ 3
Not very durable
Color: green
These toys are fun for my dog to play with but the alligator one, the rope started to come unraveled. I was able to pull it off and throw it away and the toy is still okay. Not as durable as I would like.
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Reviewed in the United States on May 8, 2026
K
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Kimberly Kelley
Port Orchard, US
★★★★★ 5
Good toy for bully breeds
Color: blue
These have lasted very well with my bully dogs. Will buy again.
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Reviewed in the United States on May 1, 2026
K
Verified Purchase
karen ferrick
Massapequa, US
★★★★★ 5
Toy
Color: blue
The dog loves them
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Reviewed in the United States on May 31, 2026

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