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

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

Sale price$607.48 Regular price$674.98
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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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MarTi
Draper, US
★★★★★ 5
Good quality surge protector.
Size: 6.5 FT, Color: Black
It's great to have a search protector that has this much versatility. One of the spots that this is mostly needed is around the TV area. With the need to plug in TVs, DVD players, surround sound theater system equipment, Xbox and PS5's, wifi router etc. This thing has more than enough plug spaces then you can throw it at a single time. The east of having all these connecting ports available in one compact place is a big win. It also eliminates running unnecessary wires being that old the plugs you need to plug in will have it available socket. This search protector also has a very premium feel due to quality materials. Another great feature that it has is that you can hang it or drill it to a wall due in large part to its available pre drilled holes. Also the way that the sockets are aligned are perfect to plug different types of plugs with enough space in between. There is enough separation to make different types of plugs fit snuggly.
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Reviewed in the United States on December 27, 2025
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BC Robins
Birmingham, US
★★★★★ 5
This is a great surge protector and has plenty of outlets. Highly Recommend
Size: 6.5 FT, Color: Black
I attached this to the back of my nightstand. I have multiple devices in the nightstand and on top of it. This is a fantastic unit and I love it. Works Fantastic. I highly recommend.
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Reviewed in the United States on December 23, 2025
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vernon stickells
Dallas, US
★★★★★ 5
Works as expected
Size: 6.5 FT, Color: Black
Great power expander with surge protection
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Reviewed in the United States on January 4, 2026
A
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Adam
Battle Creek, US
★★★★★ 5
The Ultimate Command Center for My Workbench
Size: 6.5 FT, Color: Black
I finally ditched the old, flimsy power strip on my workbench and mounted this DEPOW 28-in-1 Surge Protector on the wall behind it. Honestly? It was the best move I’ve made for my workspace in years. Here is why this thing is a beast for anyone with a hobby or work bench: Insane Outlet Capacity: With 22 AC outlets, I no longer have to play "musical chairs" with my power tools. I can keep my chargers and bench tools plugged in simultaneously without running out of room. The Modern Tech Solution: It feels like every new gadget uses USB-A or USB-C these days. Having 6 dedicated USB ports (including 3 USB-C) built right in means I can charge my phone, tablets, and lights without using up my precious AC space with bulky "bricks." Pro Mounting & Design: Mounting it on the wall cleared up so much clutter on the bench surface. The 6.5ft flat plug cord made it easy to reach the wall outlet even with the bench pushed flush against it. Peace of Mind: With 2100 Joules of surge protection, I don’t have to worry about my expensive electronics or power tools getting fried during a storm. The Bottom Line: This isn't just an extension cord; it’s a full-on power hub. If you have a mix of high-power tools and modern USB-charged gear, "this baby" truly does it all. Highly recommended for gamers, DIYers, or anyone with a home office!
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Reviewed in the United States on April 6, 2026
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Frank A Phillips
Waukegan, US
★★★★★ 4
SO far so good, no issues yet
Size: 6.5 FT, Color: Black
Hate it's made out of cheap hardened plastic
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Reviewed in the United States on May 7, 2026

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