Holley Hi-Ram Intake Manifold - GM LT1 - 300-141
SKU: 37389770921

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

Sale price$607.48 Regular price$674.98
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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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: 37389770921

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Ninfa Velásquez
Lowell, US
★★★★★ 5
Mi impresora
Style: Starter Bundle
I am very happy with my printer. The print quality is excellent; the colors are vibrant, and the details look crisp. That said, I must admit that I have faced a few challenges when adjusting the tones, but I believe that with a little more practice, I will master them. Overall, it is an investment I highly recommend for anyone looking to get started in the world of sublimation.
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Reviewed in the United States on May 6, 2026
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Barefoot Quilter
Cuba, US
★★★★★ 5
Prints beautifully
Style: Starter Bundle
Prints sublimation prints perfectly. Colors are bold and vibrant. The first printer I used was an inkjet that I converted to sublimation. Wish I’d gotten this one first. It’s a world of difference compared to the print quality. So easy to download the drivers to your computer. The printer setup is extremely easy, just follow the prompts. Then, just click and print. Paper tray doesn’t hold a lot, but then again you don’t want too much paper to sit in the paper tray, because it starts to curl around the edge if left to sit out too long. Depending on how much graphics you are printing determines the speed of printing.
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Reviewed in the United States on December 1, 2025
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Str8up INC.
Pawtucket, US
★★★★★ 1
No good
Style: Starter Bundle
Item is no good. Couldn’t even get it to print steady. It was always blurry. I sent it back.
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Reviewed in the United States on June 9, 2026
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Marisol
Los Angeles, US
★★★★★ 5
Great product
Style: Starter Bundle
It works perfectly ,easy to use It is not too slow printing but I would like a faster speed printing , it is very functional for what I am using for
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Reviewed in the United States on January 6, 2026
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Robin Quarles
Port Orchard, US
★★★★★ 4
Great beginner friendly sublimation printer
Style: Starter Bundle
I have had this for a few months now and I will say still getting the hang of sublimation but it was easy to set up. I wish it was compatible with a tablet. I had to use my daughters laptop instead but it was worth every penny. Great entry level sublimation printer!
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Reviewed in the United States on March 11, 2025

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