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Description
Holley Gen III Hemi Hi-Ram EFI Manifold 300-658Gen III Hemi EFI for use with 80 and 92mm Mopar Style Throttle Body As Cast Finish Fits 2009 up 5. 7L, 2005 2010 6. 1L, and 2011 up 6. 4L 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 Finish Runner Length and the Tapered
Gen III Hemi EFI for use with 80 and 92mm Mopar Style Throttle Body - As Cast Finish - Fits 2009-up 5.7L, 2005-2010 6.1L, and 2011-up 6.4L
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 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
Specs:
| Basic Operating RPM Range | 1500-7000 RPM |
|---|---|
| Brand | Holley EFI |
| Color | Natural |
| Construction | Cast |
| EGR Port | No |
| Emission Code | 3 |
| Engine | GEN 3 HEMI |
| Finish | Satin |
| Flange Style | EFI |
| Front Height | 11.59 inch |
| Front Maximum Height | 11.59 IN |
| Fuel System Type | EFI |
| Grade Type | Performance |
| Injector Style Provision | EV-1, Gen III Hemi |
| Inlet Size | 95mm |
| Intake Port Gasket(s) Included | No |
| Manifold Type | Hi-Ram |
| Material | Aluminum |
| Nitrous Bung(s) Included | No |
| Plenum Finish | Natural |
| Port Size | 1.70" x 1.88" |
| Product Type | Intake Manifold |
| Rear Height | 10.35 inch |
| Rear Maximum Height | 10.35 IN |
| Removable Runners | No |
| RPM Power Band | 1500-7000 |
| RPM Power Band | 1500-7000 RPM |
| Runner Length | 6.65 inch |
| Sale Category | Air and Fuel Delivery |
| Single Or Dual Plane Type | Single Plane |
| Style | EFI |
| Throttle Body Bore Diameter | 95 MM |
| Throttle Body Included | No |
| Throttle Bore | 95mm |
| Type of Component | Intake Manifold |
| Vacuum Ports | (2) 3/8" NPT & (1) 1/4" NPT |
| Warning | California Proposition 65 |
| Warranty | Limited 90 Day |
Application:
| Year | Make | Model | Submodel |
|---|---|---|---|
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
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4.5 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 5
Great quality highly recommended
Great quality highly recommended for the summer or used on the oven great size
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
★★★★★ 5
Good
Good value
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Reviewed in the United States on May 3, 2026
★★★★★ 5
Easy To Use
These work great for a really good price. I love using these when I'm making dishes that would be difficult to clean otherwise.
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Reviewed in the United States on March 15, 2026
★★★★★ 5
Good buy
Love these. Easy clean up and use. As described
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 7, 2026
★★★★★ 4
Value, Durability, Everyday Use
What I liked:
- Price-to-value is the standout. These were significantly better priced than similar packs I’ve bought from local grocery stores and big discount retailers.
- For everyday, disposable use—think casseroles, baked pasta, brownies, roasted veggies—the lighter weight is perfectly fine.
- They stack neatly and are easy to store, which matters when you’re buying in bulk.
What I didn’t like:
- They’re a bit flimsier and not as thick as the store-brand pans I’ve used before. You can feel the difference when you handle them.
- For heavier dishes (large lasagnas, big roasts, or anything dense with sauces), a single pan can flex more than I’d like.
How I used them:
- Over the past couple of weeks, I’ve used these for baking brownies, roasting chicken thighs with vegetables, and prepping freezer meals. When I expected more weight or lots of liquid, I doubled up the pans, which solved the flex issue and kept everything stable.
- I also tested bending one to compare sturdiness. In the accompanying video, you’ll see me gently flexing the pan to show the “give.” In the photo, I placed this pan next to a thicker pan I bought at a regular store so you can see the difference in gauge.
My takeaway:
- If you need heavy-duty pans for very weighty dishes, these aren’t a perfect one-for-one replacement for thicker, premium options. However, for routine baking, storage, and serving—especially when you plan to toss the pan afterward—the cost savings make a lot of sense.
- Doubling them for heavier recipes is a simple workaround that maintains stability while still keeping the overall cost lower than buying thicker single-use pans.
Verdict:
- I’ll be purchasing these again for everyday use and bulk meal prep. The value is strong, and the performance is solid when you match the pan to the job or double up as needed.
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Reviewed in the United States on April 15, 2026