SKU: 23941090526

Holley Hi-Ram Intake Manifold - GM LT1 - 300-143

Sale price$503.08 Regular price$558.98
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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31

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Description

Holley Hi-Ram Intake Manifold - GM LT1 - 300-143Overview: The new Holley EFI Hi Ram intake provides the ultimate performance with the new GM direct injected Gen V 6. 2L LT1 engine. The modular design of this manifold allows easy disassembly for custom porting, multiple tops, or custom induction systems. Each runner has a large radius where it meets the plenum, and optimized taper & cross sectional area to perform in a wide variety of engine configurations. The optional injector bosses on the intake

Overview:

The new Holley EFI Hi-Ram intake provides the ultimate performance with the new GM direct injected Gen V 6.2L LT1 engine. The modular design of this manifold allows easy disassembly for custom porting, multiple tops, or custom induction systems. Each runner has a large radius where it meets the plenum, and optimized taper & cross-sectional area to perform in a wide variety of engine configurations. The optional injector bosses on the intake runners allow increased performance potential by using additional injectors along with the factory direct injection. When you look for the pinnacle of performance, price, and quality, look to Holley EFI.

Features:

  • Modular Design w/ Removable Top
  • Overall Height: 13.34” (w/ EFI Top - 95mm or 105mm) – See Drawing
  • A-B Height: 12.10” (w/ Carb Style Top - 2 x 4150 or 2 x 4500) – See Drawing
  • Height at Plenum Flange: 9.44”
  • Port Size: 2.06” High x 1.53” Wide
  • Runner Length: Approx. 6.5”
  • Large Plenum Volume of 549 Cubic Inches (w/ 1 x 95mm or 1 x 105mm Throttle Body Top)
  • Available With or Without Injector Ports in the Runners
  • Intakes w/ Injector Ports Include Fuel Rails w/ Dual Mounting (1.48” or 2.56” O-ring to O-ring injector length)
  • Fuel Rails are Anodized, Laser Etched, and Machined for 8AN O-Ring Fittings at Each End
  • Rear of Plenum Machined for MAP & 3 Vacuum Ports
  • Head Flange has Clearance for Fuel Supply to High Pressure Pump
  • Increased Runner Wall Thickness for Custom Porting at the Plenum to Runner Entry on Each Runner
  • O-Ring Seals at Cylinder Heads & Plenum Top
  • Easy Assembly w/ Top Mounted Screws on Plenum Top (all except front 2 screws)
  • Several Top Options: 1 x 95mm, 1 x 105mm, 2 x 4150, 2 x 4500, or Blank Flange for Custom Throttle Bodies
  • 3500-8000+ RPM Power Band

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Brand Holley EFI
Construction Cast
Emission Code 3
Engine GM Gen V LT1
Finish Satin
Manifold Type Hi-Ram
Product Type Intake Manifold
RPM Power Band 3500-8000+
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: 23941090526

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4.0 ★★★★★
Based on 19 reviews
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K
Verified Purchase
Kevin Rubel
Lowell, US
★★★★★ 4
Good for play but don’t leave out to be chewed on
With two labs we need durable toys. This can stand up to the teeth when pulling but we can’t leave it laying around or it has chunks chewed out of it. And it’s not the toys fault that my girls can’t figure out how to each take a side, so it’s a human vs dog pull toy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 27, 2025
L
Verified Purchase
Lisa Schnepf
Lake Worth, US
★★★★★ 5
Toy is strong enough for a Rottweiler.
This is one of my dog’s favorite toys. He is a Rottweiler so I have to get him strong, sturdy toys. He hasn’t broken it yet!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
K
Verified Purchase
Kara
Charlottesville, US
★★★★★ 5
Will buy again
Perfect tug toy. My big guy is an aggressive chewer with some strong jaws. I'm extremely impressed that its lasted as long as it has. He loves to play with it, tug on it, chew on it. Exactly what I had hoped for.
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Reviewed in the United States on March 22, 2026
A
Verified Purchase
Amazon Customer
Phoenix, US
★★★★★ 5
Buy it you won’t regret it
This is the best toy ever! My Rottie loves it and can entertain herself for quite a while. The unpredictability of its bounce when tossed keeps her guessing and moving getting lots of energy out. Great for tug as well, or roll it on flat surfaces, it’ll go forever! She love the squeaky too
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Reviewed in the United States on February 18, 2026
J
Verified Purchase
JasonGuitar1974
Los Angeles, US
★★★★★ 5
Best dog toy ever!
We saw someone with one of these at the dog park and thought that it would be perfect for our male Boxer, Buster. He has torn up just about every toy we’ve gotten him and this thing seemed really durable and really fun. Buster absolutely loves this toy! It is definitely the most expensive dog toy I’ve ever bought, but we’ve had it for months, he plays hard with it every day, and it is perfectly intact still! I wish I had known about it sooner so I wouldn’t have wasted money on Toys that he destroyed quickly. If you don’t like squeaky toys this may not be for you because once they figure out how to get it to squeak, you’ll be hearing it often. The nice thing is it doesn’t squeak without a lot of effort and it takes a strong dog to get it going. It doesn’t squeak when it’s just rolling around so that’s a plus. It is big and heavy though so be careful not to trip over it! Fortunately, it’s easy to spot with the bright color on one side. Highly recommended!
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Reviewed in the United States on August 16, 2025

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