Holley Hi-Ram Lower Manifold - GM LT1 - 300-237
SKU: 54939055477

Holley Hi-Ram Lower Manifold - GM LT1 - 300-237

Sale price$350.98 Regular price$389.98
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Description

Holley Hi-Ram Lower Manifold - GM LT1 - 300-237Overview: 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
Manifold Type Hi-Ram
Product Type Intake Manifold
RPM Power Band 3500-8000+
Type of Component Lower Manifold
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: 54939055477

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Robert F
Port Orchard, US
★★★★★ 4
Not real sweet, but no sugar
I have been taking Metamucil with real sugar regularly for 20+ years. I became concerned about the amount of sugar I was consuming daily and cannot tolerate aspartame. So, I jumped to buy this when I saw Stevia. I quickly noticed that this version is not sweet. It’s sort of bitter. Also, the texture is different due to not having sugar granules mixed in. It also converts to a gel like texture quicker. I later noticed you use less of this product per serving than the one with sugar (read the label!). I have found the best way to take this is to very quickly (seconds) consume the serving after adding water. Don’t wait too long. I down it like taking a shot out of a shot glass followed quickly by a glass of water. After a while, I got used to the flavor. Overall, I am pleased I am consuming much less sugar and really don’t notice the change anymore.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2022
T
Verified Purchase
Tim M.
San Leandro, US
★★★★★ 5
This product is very important to your well being.
The Metamucil is everything I hoped for. If you’re concerned about your sugar intake then I suggest the one with Stevia. Yes the one with natural sugar tastes the best but once you graduate to 3 times a day that’s a lot of sugar. I would follow the directions. Start with once a day then after 3 or 4 days you’ll find twice a day works nice. I’m on my 4th week so a few days ago I started 3 times. I’m very pleased with the way I feel. Think about it, we take care of our cars better than ourselves sometimes. It’s so important to take care of your digestive system. Have a good day. 😁
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Reviewed in the United States on March 23, 2021
E
Verified Purchase
Elizabeth Rogers
Boise, US
★★★★★ 5
Great flavor, less calories than real sugar, thickens very quickly.
I usually get the real sugar version of this rather than this one with Stevia. I have it every morning just to supplement my diet with fiber and the version with stevia is only 30 calories vs 80 for the one with real sugar. I mix it with unflavored protein powder in a shaker cup and this one thickens very quickly. So quickly that I add water after every quarter of the container that I drink and re-shake. Otherwise it gets so think it won’t even come out by the time I’m halfway through. Once I figured that out it’s no big deal but makes it so that I won’t take it in the car to drink on the go.
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Reviewed in the United States on October 26, 2019
K
Verified Purchase
Kristen
Omaha, US
★★★★★ 5
IBS C must have!
I have been suffering with OBS C for a very long time now and my doctor through Amazon Care (if you haven't downloaded that app yet, do it now) recommend that I take magnesium and the Align probiotic with breakfast and Metamucil in the evening before bed. I am finally feeling better and have not had any issues using the restroom! I recommend for sure. The taste is meh but I would rather down something that doesn't taste great as long as I feel better anyway!
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Reviewed in the United States on June 2, 2022
C
Verified Purchase
Courtney Richards | Finds For Families
Birmingham, US
★★★★★ 5
Very functional for our family - We ordered a second one
Color: Black
We were happy to stumble on this paper towel holder after trying a few that just either didn’t look great and didn’t work well. We really like the black matte finish and the fact that the base is pretty heavy so you can actually tear off a paper towel without the whole thing toppling over. The spray/cleaner is an added bonus to have right there also. It’s awesome for craft time and cleanup after kids. We purchased one for both our kitchen table and our rental property and they both function great and have been holding up very well. Happy with the purchase!
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Reviewed in the United States on March 15, 2024

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