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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9
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Description
Holley Single Plane EFI Intake - GM LS7-Black 300-269BKSingle Plane EFI LS Intake Manifold. Fits all GM LS Gen III engines equipped with LS7 cylinder heads Black Finish Single Plane EFI LS Intake Manifold. Fits all GM LS Gen III engines equipped with LS7 cylinder heads Black Finish NOTES: Includes fuel rails, mounting hardware, and O ring cylinder head mounting flange gaskets. The included fuel rails are designed to accept Bosch Style EV 1 or GM OE LS7 fuel injectors. Features: 2500 7000 RPM power band
Single Plane EFI LS Intake Manifold. Fits all GM LS Gen III engines equipped with LS7 cylinder heads-Black Finish
Single Plane EFI LS Intake Manifold. Fits all GM LS Gen III engines equipped with LS7 cylinder heads-Black Finish
NOTES: Includes fuel rails, mounting hardware, and O-ring cylinder head mounting flange gaskets. The included fuel rails are designed to accept Bosch Style EV-1 or GM OE LS7 fuel injectors.
Features:
- 2500-7000 RPM power band
- 4150 Square bore flange
- Optimized runner layout and constant cross sectional area - broad torque curve, best vehicle performance from 2500-7000 RPM
- Minimum carb flange height - fit in vehicles with minimum hood modifications
- Cast aluminum construction - great manifold for centrifugal blower, turbocharged or NOS mild power adder applications
- Efficient casting design - lightweight, consistent wall thicknesses, improved casting quality
- Weight - 11.5 lbs.
- Height (front) - 5.417" to the lifter valley cover flange at the engine block front flange and bellhousing flange
- Port size - 2.33" height x 1.27" wide
- Includes FKM o-ring intake to cylinder head gaskets
Specs:
| Basic Operating RPM Range | 2500-7000Revolutions per Minute |
|---|---|
| Brand | Holley |
| Carburetor Flange | Square/4150 |
| Carburetor Studs Included | No |
| Clearance Category | Air and Fuel Delivery |
| Color | Black |
| Construction | Cast |
| Discount Percentage | 26-50% |
| EGR Port | No |
| Emission Code | 3 |
| Engine | GM LS7 |
| Finish | Black |
| Flange Style | 4150 Square Bore |
| Front Height | 5.417 inch |
| Front Maximum Height | 5.417Inch |
| Fuel Injectors Included | No |
| Fuel Rail(s) Included | No |
| Fuel System Type | EFI |
| Gasket Or Seal Included | No |
| Grade Type | Performance |
| Intake Port Gasket(s) Included | No |
| Manifold Type | Single Plane |
| Material | Aluminum |
| Nitrous Bung(s) Included | No |
| Plenum Finish | Black |
| Product Type | Intake Manifold |
| Rear Height | 5.417 inch |
| Rear Maximum Height | 5.417Inch |
| Recommended Use | Forced Induction |
| Removable Runners | No |
| RPM Power Band | 2500-7000 RPM |
| Sale Category | Air and Fuel Delivery |
| Single Or Dual Plane Type | Single Plane |
| Throttle Body Included | No |
| 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
4.4 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Good for light stuff
Color: Black, Size: 15 inches, Color: Black, Size: 15 inches
Good product. Very light though and if it’s in dry wall won’t hold something really heavy. I don’t think it would hold 20 pounds just light. I put over my washer and dryer and put one right on top that way I can put heavy stuff on that side without it weighing down and being ripped out of the wall. I won’t be putting heavy stuff on the right side I used 4 pieces and the wall is about 60-62 inches long
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 5, 2025
★★★★★ 5
Perfect sized floating shelves
Color: Black, Size: 24 inches, Color: Black, Size: 24 inches
These are great and the perfect width. I had my contractor install them because my tile had to have a hole drilled into it. I love that it looks seemless and flat to the tile. New bathroom renovation. I am very pleased. Holds a few towels also candles and a little plant with extra space. Perfect for a minimal look or if you have a small bathroom. Color was spot on.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026
★★★★★ 3
Not What I Expected
Color: White, Size: 32 inches
This set of floating shelves was a disappointment. They’re advertised as holding 20 pounds, but mine began to bend with barely 10 pounds on them. All the screws and anchors were installed tightly and correctly, yet the metal brackets still warped under minimal weight. The shelves look fine on the wall, but I’m leaving them up only because I don’t want to patch a dozen holes—not because they’re sturdy. Definitely not the quality or strength I expected.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
★★★★★ 5
Love them
Color: White, Size: 15 inches, Color: White, Size: 15 inches
I have these floating shelves all over my house. The are made nice and sturdy and they come with simple instructions. They come it various sizes and can almost fit anywhere. These particular shelves are in my makeup closet and they look so great and organized.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 24, 2025
★★★★★ 5
Exceeds my expectations
Color: White, Size: 24 inches, Color: White, Size: 24 inches
Easy to install, exceeds my expectations. I’d buy it again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026