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Description
Holley Lo-Ram Manifold Kit Dual Injector- Black - GM LS3/L92 300-683BKDual Injector Manifold and Fuel Rails Black Finish Features: Designed for GM LS Gen III and IV engines equipped with GM LS3 L92 cylinder heads Provides best performance for forced induction (supercharged or turbocharged) engine applications with peak power at 7000 8000 rpm, depending on the application Dual injector, separate passage, high volume fuel rails with mounting hardware, dual fuel capable, 8 AN o ring ports Low height to aid the packaging of
Dual Injector Manifold and Fuel Rails- Black Finish
Features:
- Designed for GM LS Gen III and IV engines equipped with GM LS3/L92 cylinder heads
- Provides best performance for forced induction (supercharged or turbocharged) engine applications with peak power at 7000-8000 rpm, depending on the application
- Dual-injector, separate-passage, high-volume fuel rails with mounting hardware, dual-fuel capable, 8 AN o-ring ports
- Low height to aid the packaging of a plenum mounted air-to-water intercooler in a top-feed configuration
- Available with both as-cast satin and black power-coat finishes
- High volume fuel rails for eight and sixteen injector configurations. Mounting hardware included with3/4-16 O-ring ports (8 AN)and mounting hardware included with 3/4-16 O-ring ports (8 AN)
Specs:
| Basic Operating RPM Range | 3500-8000 RPM |
|---|---|
| Brand | Holley EFI |
| Category Filter | Intake Manifolds |
| Clearance Category | Intake Manifolds |
| Color | Black |
| Construction | Cast |
| EGR Port | No |
| Emission Code | 3 |
| Engine | GM LS3/L92 |
| Finish | Black |
| Fuel System Type | EFI |
| Grade Type | Performance |
| Injector Quantity | Dual |
| Inlet Location | Top |
| Intake Port Gasket(s) Included | No |
| Manifold Type | Lo-Ram |
| Material | Aluminum |
| Nitrous Bung(s) Included | No |
| Plenum Finish | Black |
| Product Type | Intake Manifold Base |
| Recommended Use | Forced Induction |
| Removable Runners | No |
| RPM Power Band | 3500-8000 RPM |
| Single Or Dual Plane Type | Single Plane |
| Throttle Body Bore Diameter | 105 MM |
| Throttle Body Included | No |
| Warning | California Proposition 65 |
| Warranty | Limited 90 Day |
Application:
| Year | Make | Model | Submodel |
|---|---|---|---|
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
4.4 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 5
Great option for 100% cotton
Size: Queen (90" X 90"), Color: 11 - Bright White (No Comforter)
really love the look and feel of this duvet cover set. I had another duvet cover from bedsure that was polyester, but wanted to switch to 100% cotton. Bedsure is always spot on with quality. It is slightly rough but cotton gets softer the more it’s washed. I was debating between the bright white and natural white shades, and was worried that the bright white would pull too cool toned in my room but i’m so happy I chose it cause it looks so nice. The cover has high quality ties on the inside to attach to duvet cover and the zipper is also very durable. No loose strings or pilling. The fabric is cooling and lightweight. I read so many reviews before making purchases and was debating between this set or one that was more high end, and i’m happy I went with this option
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Reviewed in the United States on April 24, 2026
★★★★★ 5
Great quality
Size: King (104" X 90"), Color: 21 - Pastel Blue (No Comforter)
I absolutely love this comforter set. The material is incredibly soft and comfortable, and it makes the bed feel so cozy and inviting. It’s lightweight enough to stay comfortable at night but still warm and fluffy. The quality exceeded my expectations, especially for the price, and it looks beautiful in the room. It also washed really well without losing its softness or shape. Definitely one of the best bedding purchases I’ve made.
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Comfortable, Breathable, and Worth Every Penny!
Size: King (104" X 90"), Color: 09 - Iceberg Green (No Comforter), Size: King (104" X 90"), Color: 09 - Iceberg Green (No Comforter)
I decided to switch from synthetic bedding to 100% cotton, and I am SO glad I did. The quality of this set is amazing. I washed everything before using it, and it washed well overall. There were a few small cotton fuzzies after washing, but nothing a quick lint roll couldn’t fix.
I ordered the sage green duvet cover and pillowcases, and the color is beautiful. In bright morning light it looks more like a true sage green, while in dimmer lighting it can lean more earthy or military green. Either way, it’s stunning, cozy, and really warms up the room.
The biggest difference for me was the sleep quality. I normally wake up several times a night and overheat easily, but the first night sleeping with this duvet cover and my new 100% cotton sheets, I slept completely through the night without waking up once. The cotton feels slightly heavier in the best way -- cozy and tucked in without feeling hot or suffocating. It was truly the best night's sleep I have gotten in a very long time.
I honestly didn’t realize how much fabric type could affect sleep quality until now. My body responded so well to the cotton that I don’t think I can ever go back to synthetic bedding again.
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Reviewed in the United States on May 12, 2026
★★★★★ 4
Color is off
Size: King (104" X 90"), Color: 15 - Petal Pink (No Comforter)
I ordered the petal pink, but the color is brighter and more peach colored than pictured. Besides that, it's super soft, easy to use and comfortable.
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Reviewed in the United States on March 23, 2026
★★★★★ 5
Zipper + Ultra-Soft Cotton = Love this Duvet Cover
Size: Queen (90" X 90"), Color: 01 - Natural White (No Comforter)
I just received this duvet and I couldn’t be happier. Right out of the packaging, the first thing I noticed was how incredibly soft the fabric felt—no stiffness or “breaking in” period needed. It has that cozy, breathable cotton feel that makes climbing into bed even more inviting.
One feature I especially appreciate is the zipper closure at the bottom. It makes inserting and removing the duvet so much easier compared to traditional button closures, and it keeps everything securely in place without any gaps.
The overall quality feels great, from the stitching to the fabric itself. It’s lightweight yet still feels durable, and it adds a clean, comfortable look to my bed. The one thing I would suggest is make sure you select the right "white" color. There's a bright white that I am going to order as the white I ordered "Natural" has a bit of a tan color in it against a bright white.
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Reviewed in the United States on April 9, 2026