Holley Hi-Ram Intake Manifold - GM LT1 - 300-141
SKU: 18443800673

Holley Hi-Ram Intake Manifold - GM LT1 - 300-141

Sale price$607.48 Regular price$674.98
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Description

Holley Hi-Ram Intake Manifold - GM LT1 - 300-141Overview: 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
Flange Style EFI
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: 18443800673

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rebeca panos
Draper, US
★★★★★ 4
Snug fit
Size: 11 Little Kid, Color: Lavendar
Needed to size up from all other Skechers we have bought. But still very good quality
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Reviewed in the United States on May 6, 2026
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samiam46
Belleville, US
★★★★★ 5
Very comfortable
Size: 2 Little Kid, Color: Light Pink
My daughter really really loves these. She said that they are the most comfortable shoes she has ever had.
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Reviewed in the United States on May 20, 2026
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Boise, US
★★★★★ 5
Daughters favorite shoes
Size: 2 Little Kid, Color: Light Pink
Daughter loves them. Very comfortable.
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Reviewed in the United States on May 13, 2026
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Kim
Grantham, US
★★★★★ 5
Cute shoes
Size: 2.5 Little Kid, Color: Lavendar
Cute, easy to slip on, and my very particular daughter actually wears them - which is saying a lot.
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Reviewed in the United States on April 4, 2026
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Nadezhda
San Leandro, US
★★★★★ 5
So cute and comfy for my little one!
Size: 11 Little Kid, Color: Black
Bought these for my 4 year old daughter and we both love them. She wants to wear them every single day! They fit true to size and look adorable. Great quality for the price.​​​​​​​​​​​​​​​​
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Reviewed in the United States on April 30, 2026

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