SKU: 53147906864

Holley Hi-Ram Intake Manifold - GM LT1 - 300-140

Sale price$607.48 Regular price$674.98
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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19

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Description

Holley Hi-Ram Intake Manifold - GM LT1 - 300-140Overview: 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: 53147906864

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Kelly Warren
West Palm Beach, US
★★★★★ 1
Will not charge after 1 month
Color: Pink
Liked this product, compact, good water pressure, easy to travel with, but I just tried to charge it for the 1st time after about a month of use and it will not register a charge. I've tried a bunch of different cables. It's just a hunk of useless plastic now and there's no way to contact the seller without leaving a review, which was not my preference.
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Reviewed in the United States on May 31, 2026
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Amazon Customer
San Leandro, US
★★★★★ 5
Very Strong Flosser! Works great!
Color: Green
Really strong flosser! There are multiple settings for flow type. You may want to reconsider if you have very sensitive gums. The irrigation is pretty strong. It does get all the stuff you thought you flossed away, out of your teeth, gums and mouth. Good battery, it lasts for weeks to maybe a month and a half with daily use, up to 3 months longer before recharge, if not using everyday. I've tested out both scenarios, while still using a regular string floss daily.
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Reviewed in the United States on February 10, 2026
L
Verified Purchase
Looking for solutions
Massapequa, US
★★★★★ 5
Totally Satisfied!
Color: Green
I love this, it works better than I expected. I needed a water flosser that was compact to travel with. This one works great! It is very powerful at its highest setting; however, you must work quickly, or you will need to refill the water reservoir before you're able to do your entire mouth. The pulsating setting gives the ability to move around each quadrant of your mouth a little slower. The soft setting works well for my grandson. It does a great job of getting rid of the food particles stuck between your teeth.
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Reviewed in the United States on August 5, 2025
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Amazon Customer
Massapequa, US
★★★★★ 5
Excellent
Format: Paperback
Perfect condition, perfect service
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Reviewed in the United States on April 13, 2024
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dr mantis toboggan
Lowell, US
★★★★★ 5
An important book..
This book is much more than just a book about the other realm with pretty pictures in it. Within it is a wealth of timeless information that stretches beyond the scope of angelic/devic/nature spirits. I was expecting a book focused on descriptions of beings with pictures....and it does contain that information, but it also has SO much more. It is truly worth reading.
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Reviewed in the United States on January 5, 2017

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