Holley Hi-Ram Lower Manifold - GM LS1/LS2/LS6 - 300-227BK
SKU: 684123817

Holley Hi-Ram Lower Manifold - GM LS1/LS2/LS6 - 300-227BK

Sale price$472.48 Regular price$524.98
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Ships within 48 hours · Estimated delivery Jul 4 - Jul 9

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Description

Holley Hi-Ram Lower Manifold - GM LS1/LS2/LS6 - 300-227BKOverview: 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

Overview:

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
  • Black

 

Application:

Year Make Model Submodel Engine Size
Universal

 

Specs:

Brand Holley EFI
Color Black
Construction Cast
Emission Code 3
Engine GM Small Block Gen III/IV (LS Based)
Fuel System Type EFI
Product Type Manifold
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: 684123817

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Joy2U
Massapequa, US
★★★★★ 5
Cute!
I actually ordered these as mascots for a pb&j food bank drive at work. They're cute, well made, and a big hit with associates and customers alike. I do believe my dog would've loved them had I allowed him to play with them..
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2025
C
Verified Purchase
Cheryl L.
Omaha, US
★★★★★ 5
So cute
I have a 1.5 yr old cavapoo & cockapoo. They love the little squeaky toys that, esp my cockapoo. He likes to run around making them squeak. These ones are a little bit bigger than some of the others they have. I knew they would be. He still runs around with them, there’s just no squeaking. My husband loves peanut butter and jelly, I had to get them. They’re super cute! Made well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 14, 2024
M
MAdisonSt.
San Leandro, US
★★★★★ 5
Perfect puppy trio!!
This soft, cute, set of three squeaky puppy/dog toys are perfect for play, chew and sharing!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 22, 2024
L
Verified Purchase
L. Ramsey
San Leandro, US
★★★★★ 3
I thought these are Cute My dogs didn't think so
These are cute and would work well for medium and larger dogs.  Not dogs under 25lbs.  The toys are to big for their little mouths and they can't get a hold of them to play with them.  
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Reviewed in the United States on July 11, 2025
D
Verified Purchase
Darcie
Massapequa, US
★★★★★ 5
Fun little ball!
Fun little ball! Glad I got the football version the regular ball would be a choking hazard for my Great Dane. The ball rolls and shakes on the floor which at first was scary, but now she loves it! She nudges it all over the floor to keep it moving, keeping her entertained for a bit.
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Reviewed in the United States on May 9, 2026

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