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Description
Holley GEN III HEMI Hi-Ram EFI Manifold - 300-651Add even more power to your Gen III Hemi engine with a Holley Hi Ram intake manifold. This cast intake manifold has large intake ports fits 2009 up 5. 7L, 2005 2010 6. 1L & 2011 up 6. 4L engines. The Holley Hi Ram intake manifold is for high performance applications where induction system height is not limited. Using this Hi Ram intake with high flowing Gen III Hemi cylinder heads has outstanding potential for naturally aspirated & forced induction
Add even more power to your Gen III Hemi engine with a Holley Hi-Ram intake manifold. This cast intake manifold has large intake ports - fits 2009-up 5.7L, 2005-2010 6.1L & 2011-up 6.4L engines. The Holley Hi-Ram intake manifold is for high-performance applications where induction system height is not limited. Using this Hi-Ram intake with high flowing Gen III Hemi cylinder heads has outstanding potential for naturally aspirated & forced induction applications. Aggressive, bold, race-bred styling will make bad intentions clear for drag race, muscle car, marine, off-road, sandrails, pulling trucks, track, street-rod applications and more! The base is designed to be modular in configuration to accept a wide range of EFI tops and to be attractive to builders and fabricators as the foundation for custom induction systems. Runner length and the tapered cross-section designed to perform well for a wide range of engine configurations. The EFI fuel rails are machined for -8AN O-ring fittings with passages large enough to accommodate high fuel flow and dampen pressure pulsations in the fuel system and come standard with EFI Hi-Ram kits. Intended for use on naturally aspirated, forced induction, or nitrous engines in the 5.7 to 7.2+ liter range, max power at 7500-8500 RPM.
Features:
- Add Even More Power to the Gen III Hemi Engine with a Holley Hi-Ram Intake Manifold
- Fits Gen III Hemi Engines w/ Large Intake Ports (1.70” Height x 1.88” Wide) – fits 2009-up 5.7L, 2005-2010 6.1L, 2011-up 6.4L)
- Cast Aluminum Construction w/ Natural Satin or Black Ceramic Finish
- Runner Length and the Tapered Cross Section Designed to Perform Well for a Wide Range of Engine Configurations
- Includes EFI Fuel Rails w/ -8 AN O-Ring Fittings & Large Passages to Accommodate High Fuel Flow and Dampen Pressure Pulsations in the Fuel System
- Works with Gen III Hemi Injectors & Bosch EV-1 Style Injectors
- O-Ring Seal to Head – Large Retained O-rings Offer Superior Original Equipment (OE) Style Sealing & Are Easy to Replace
- Billet Oil Fill Cap – Attractive Low Profile Design
- Positive Crankcase Ventilation (PVC) Ports w/ Adapter Fittings
- Overall Height: 11.59”
- Port for OE Style Manifold Absolute Pressure (MAP) Sensor (1 or 2 Bar)
- Cast-In Pads for Adding Nitrous Nozzles
- Manifold Base – Available Separately for Custom Induction Systems
Applications
- 2008 - 2020 Dodge Challenger
- 2006 - 2020 Dodge Charger
- 2009 - 2020 Dodge Durango
- 2006 - 2008 Dodge Magnum
- 2009 - 2010 Dodge Ram 1500
- 2009 - 2010 Dodge Ram 2500
- 2009 Dodge Ram 3500
- 2009 - 2010 Dodge Ram 4000
- 2011 - 2020 Ram 1500
- 2019 - 2020 Ram 1500 Classic
- 2010 - 2020 Ram 2500
- 2011 - 2020 Ram 3500
- 2011 - 2020 Ram 4000
- 2014 - 2019 Ram 4500
- 2014 - 2020 Ram 5500
- 2006 - 2020 Jeep Grand Cherokee
- 2009 - 2010 Jeep Commander
- 2005 - 2020 Chrysler 300
- 2009 Chrysler Aspen
Specs
| Brand | Holley EFI |
|---|---|
| Color | Natural |
| Construction | Cast |
| Emission Code | 3 |
| Engine | Gen III Hemi |
| Finish | Satin |
| Flange Style | EFI |
| Front Height | 11.59 inch |
| Fuel System Type | EFI |
| Injector Style Provision | EV-1 |
| Gen III Hemi | |
| Inlet Size | 105mm |
| Manifold Type | Hi-Ram |
| Material | Aluminum |
| Port Size | 1.70" x 1.88" |
| Product Type | Intake Manifold |
| Rear Height | 10.35 inch |
| RPM Power Band | 1500-7000 |
| Runner Length | 6.65 inch |
| Style | EFI |
| Throttle Bore | 105mm |
| Type of Component | Intake Manifold |
| Vacuum Ports | (2) 3/8" NPT & (1) 1/4" NPT |
| Warranty | Limited 90 Day |
| Part Number | 300-651 |
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
4.5 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
Love them
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
I wear a size 11.5 in ladies shoe and these just barely fit. Butttt after I put lotion on my feet and slipped these on and left them on for about 30 mins. It left my feet really soft! They work great as intended. Would buy again
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Reviewed in the United States on January 31, 2026
★★★★★ 3
Effective but may be uncomfortable
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
I have eczema on my feet and use a prescription cream that I leave on overnight. I often have a problem sleeping in socks but the silicone feels cool on my feet. The only drawback I have is the opening of the socks feel very tight around my ankles making them uncomfortable on me. I wish the opening was a bit more flexible.
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Reviewed in the United States on September 20, 2025
★★★★★ 1
Burned my already sensitive feet, too big
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
Feels icky, and the heat gets trapped and literally felt like my feet were being burned by these. The bottoms of these feel prickly and they are way too big. You have to sit still and cannot walk in them.
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Reviewed in the United States on April 22, 2026
★★★★★ 5
Just as good as paraffin wax
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
I might prefer these socks over paraffin wax. They are comfy and very moisturizing. I use these socks once a week to keep the heels and soles of my feet moisturized between pedicures. I rinse with warm, soapy water then hang to dry. They are hard to walk in, but there's a saying printed in the socks that's says something to the effect of "take a break, stay off your feet" lol I love that as a reminder to put my feet up and relax
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Reviewed in the United States on April 9, 2026
★★★★★ 5
Love these!
Color: Pink & Beige, Size: Small(fits up to size 7)
Love these! As I write this review, I’m sitting in my recliner with these on. I have had other silicone socks in the past and would like to share a few of the things that I have learned.
These fit great! The others were 2-3 sizes too big because you could not order a size. I wear a size 7 women’s shoe. I got the smaller size. I walked around my apartment in my old ones and they got kinda yucky. Now, I sit in my recliner, put them on and chill for a few hours. I now take them off and put in a ziplock bag so they stay nice and clean (no cat hair!). I use them once a week usually on Saturday or Sunday as I’m a working girl. Also, I use Auqaphor before I put them on and put cotton socks on after I’m finished. Your feet will be SO soft. This is not a one and done…I do this every week especially during sandal season! I know this was lengthy and I hope you got some tips.
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Reviewed in the United States on April 25, 2026