Holley Single Plane EFI Split-Design Intake Manifold GM LS3/L92 Black 300-290BK
Holley Single Plane EFI Split-Design Intake Manifold GM LS3/L92 Black 300-290BK
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Overview:
The new Holley Single-Plane Race intake manifold were designed with performance in mind. They feature a race bred, two piece split feature that was previously only found on the most expensive race intakes. The manifold will fit GM LS Gen III engines with LS3/L92 heads and are intended for 4150 style square bore flanged carburetors or throttle body EFI.
The LS Race single-plane intake manifold was designed for hi-performance/racing engine applications, 5.3 to 6.2+ liter displacement, and maximum engine speeds of 6000-7000 rpm, depending on the engine combination. This single-plane design provides optimal performance across the RPM spectrum while providing maximum performance up to 7000 rpm.
The Holley LS Race manifold incorporates a split feature, which allows disassembly of the intake for direct access to internal plenum and port surfaces, making custom porting and matching a snap. With shoulder bolt locators and O-ring seal, reassembly is simple and precise.
Technical Data:
? A-B Height - 7.20" (0° carb flange angle)
? Port Size- 2.59" Height x 1.28" Wide
? Throttle Body Flange - Standard 4150 for up to 1-3/4" diameter throttle bores
? As-Cast Runner Cross-Sectional Area - 4.5 in² at the runner entry tapered to 3.2 in² at the flange exit
Features:
- Maximum performance race design with hood clearance consideration
- Lighter than other split race intakes
- Split feature making porting efforts easy!
- 33 to 50% the price of other split race intakes
- Captured O-ring seals at head ports and split
- Vacuum Port options include (2) 1/8, (1) 1/4, and (1) 3/8, NPT ports at the carb flange
- Billet Fuel Rails and rail mounting hardware included.
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 2008 - 2013 | Chevrolet | Corvette | 376/6.2L V8 | |
| 2010 - 2015 | Chevrolet | Camaro | 376/6.2L V8 | |
| 2014 - 2017 | Chevrolet | SS | 376/6.2L V8 | |
| 2007 - 2008 | Cadillac | Escalade | 376/6.2L V8 | |
| 2007 - 2008 | GMC | Yukon | 376/6.2L V8 | |
| 2007 - 2008 | GMC | Yukon XL 1500 | 376/6.2L V8 | |
| 2007 - 2008 | GMC | Sierra 1500 | 376/6.2L V8 | |
| 2007 - 2008 | Cadillac | Escalade ESV | 376/6.2L V8 | |
| 2007 - 2008 | Cadillac | Escalade EXT | 376/6.2L V8 | |
| 2008 | Chevrolet | Tahoe | 376/6.2L V8 | |
| 2008 | Hummer | H2 | 376/6.2L V8 | |
| 2009 | Pontiac | G8 | 376/6.2L V8 |
Specs:
| Barrels | 4 |
|---|---|
| Brand | Holley |
| Color | Black |
| Construction | Cast |
| Emission Code | 3 |
| Engine | GM LS3/L92 |
| Finish | Black |
| Flange Style | 4150 Square Bore |
| Front Height | 7.32" |
| Fuel System Type | EFI |
| Manifold Type | Split Single Plane |
| Product Type | Manifold |
| Rear Height | 7.32" |
| RPM Power Band | 2500-7000 |
| Warranty | Limited 90 Day |

Policies and FAQs
Return Policy
Fault reasons include but are not limited to:
- Buyer was shipped the wrong product
- Buyer was shipped a damaged product
- The product page had incorrect fitment and the part does not fit the Buyer's vehicle
Opened boxes, plastic bags, and other packaging are not considered damage (excluding single use items such as, but not limited to, liquids, software, and other components that cannot be reused/resealed).
FAQs
|Q. What is an Intermediate Brake Line?
|A. This is the line that runs from the front of the vehicle to the rear. On most vehicles it connects to a junction then you will have rear axle lines. On a few cars the intermediate lines will connect to the rear wheels. It is recommended to change the axle lines if you are replacing the intermediate lines.
|Q. What is included in a pre bent brake line kit?
|A. Our kits include all of the solid metal lines for that section of the vehicle
|Q. I need to return something - what's your return policy?
|A. We are happy to help! Please help us to help you by going to our return form and filling out the form as best as you can in order to request a return.
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Modern Day stands by our parts and is happy to accept returns within 30 days of purchase. Parts must be in new condition.
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If a part arrives damaged, or is defective, Please report it to us immediately. So we can handle it for your promptly.