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Description
Holley Hi-Ram Intake Manifold - GM LT1 - 300-142Overview: 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:
- 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
4.2 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
Really Great Product
I just love this product’s texture and consistency. And i also love how well this product performs in terms of reducing fine lines, evening out skin tone, and improving my skin’s texture. Korean retinol products are often gentler than Western formulations, so if you have sensitive skin and you’re not new to retinol, it’s 100% worth trying out. It’s the only thing i’ve added to my skincare routine (and i have a minimal/simple skincare routine), and it’s definitely improved my skin. There’s barely any scents and i love that.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 2, 2024
★★★★★ 5
Younger looking skin
Feeling amazing on my face, I have seen some improvements in my skin
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 28, 2025
★★★★★ 1
Massive acne breakout
I started using this product a week ago and never have I had a face product make me break out this massively in my entire adult life of 20 years. I currently look like a prematurely aged teenager with all these cystic-looking red acne all over my cheeks and forehead. I contemplated posting a photo but was too embarrassed of how terrible my skin looks. So I couldn't bring myself to do it. The only positive side is that the cream does not make my skin burn, which most other products do. The packaging is well-made and good appearance-wise; the tube is easy to use (no leakage, sturdy, etc) and there is no strong smell, which is a positive for me. Alas, these still don't save it; effectiveness-wise it is a -10. I might have to use this as a hand cream. So I suggest you save your money and go buy something else. I now need another product to get rid of this layer of acne all over my skin. Sign.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2025
★★★★★ 5
Smoothing
Skin felt smoother and clearer pretty quickly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2025
★★★★★ 4
Hydrating and smoothing
I have very finicky skin that breaks out in little white heads, mainly around my nose, mouth and chin, with a lot of products. I recently discovered that my skin reacts best to AHA products, but I have never tried a retinol. So I saw this and decided to get it. I did a patch test on my inner elbow and had no reaction to it, so I used it under my chin and then onto my full face. I probably haven’t been using it long enough to see full effects, but I do like it so far. It’s a thicker cream, but absorbs very well. It leaves my skin hydrated and when I wake up in the morning my skin does feel very smooth. It hasn’t caused any irritation or burning, so I think it’s very gentle. I don’t notice a huge difference in fine lines yet, but it’s only been 5 days that I’ve been using it. It does seem to minimize them a bit, but it could just be the moisturizing or a placebo effect. I think only time will tell! But the skin smoothness is nice. It does seem to minimize pimple redness and get them to go away faster. The applicator is small, which I like, so you can dispense only the amount you need.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 25, 2024
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