SKU: 557473057

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

Sale price$427.48 Regular price$474.98
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Description

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

 

Application:

Year Make Model Submodel Engine Size
Universal

 

Specs:

Brand Holley EFI
Color Natural
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
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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.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 557473057

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Brenda L. Ketola
Carnegie, US
★★★★★ 5
Best thing ever!
Size: Mini
I had no idea how my dog would react to this. She would play fetch but she seemed to get bored. This Chuck It is probably my dog's favorite toy. I love it because I can actually get the ball a lot further to get her running more. And I love how easy it makes picking up the ball. All in all, this is so worth the little bit of money it is. My dog gets so excited when I ask her if she wants to play with her Chuck It. I'd buy this again and again. This thing saves my arm and back, and my dog gets some serious exercise. Winner winner. I also love how this one folds. I can fit it anywhere to take it along. Really I simply can't say enough good things about this little ball flinger. It's also my favorite thing to play with my pup.
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Reviewed in the United States on July 22, 2025
G
Verified Purchase
gzlst32
Alexandria, US
★★★★★ 5
Great for Big and Small Dogs
Size: Mini
This launcher is on the smaller side, but it gets the job done! It’s perfect for small dogs and still throws far enough to tire out my golden retriever at the dog park. I thought it might fold while throwing, but it locks in place and holds straight really well. The foldable design makes it easy to carry in a small bag or leave in the car for spontaneous play. Lightweight, compact, and surprisingly sturdy, definitely a must-have if want to have a extra to leave in you car .
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Reviewed in the United States on June 17, 2025
J
Verified Purchase
Jennifer Esquivel
Lake Worth, US
★★★★★ 5
Love that it all up. Great use like original just smaller.
Size: Mini
Love this! Works great just like the original but it’s easy to fold up and put in bags for travel. Super durable, not flimsy . Balls have the same great bounce. Love the size great for any ball, loving pups, and the owners! Great gift ideas for new puppies. Will buy again for sure.
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Reviewed in the United States on November 23, 2025
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Verified Purchase
Soso
Chelsea, US
★★★★★ 5
Great product!!!
Size: Mini
Great product. Great price. I like that it's foldable!!
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Reviewed in the United States on May 9, 2026
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Hn
Phoenix, US
★★★★★ 1
Not worth it
Size: Mini
The orange clasp that locks it in place is super faulty on the one I received. It folds at any point when trying to throw the ball. Not sure if I just got a defective one but I wasn’t a fan. Would rather get one at a pet store just to play it safe
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Reviewed in the United States on May 8, 2026

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