SKU: 38104198296

Holley Single Plane EFI Split-Design Intake Manifold GM LS3/L92 Black 300-290BK

Sale price$382.48 Regular price$424.98
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Description

Holley Single Plane EFI Split-Design Intake Manifold GM LS3/L92 Black 300-290BKOverview: 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

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
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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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]
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SKU: 38104198296

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4.0 ★★★★★
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Verified Purchase
Guy Bloom
Omaha, US
★★★★★ 5
Look great for dress up up casual
Size: 13, Color: Black Leather/Optic White
I wear them every day for work. They are comfortable and light. I will say I was frustrated with the crease in the top that started the first time I wore them but other than that they are a great pair of shoes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 22, 2026
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LINCOLN STARNES
Charlottesville, US
★★★★★ 5
RETRO STYLING, VERY COMFORTABLE; QUALITY MATERIAL
Size: 11, Color: Black Leather/Black
VERY COMFORTABLE AND STYLISH PAIR OF SHOES; OLD FASHIONED STYLING; VERY NICE; WHEN THESE WEAR OUT, I WILL CERTAINLY BUY ANOTHER PAIR!!
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Reviewed in the United States on April 15, 2026
E
Verified Purchase
Erin
Massapequa, US
★★★★★ 5
Great shoe
Size: 11.5 Wide, Color: Tan Leather Burnished
Very comfortable business casual shoe. Looks professional, yet stylish
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Reviewed in the United States on April 29, 2026
D
Verified Purchase
dch
Louisville, US
★★★★★ 4
Hard to Beat for the Price
Size: 10 Wide, Color: Tan Leather Burnished
I purchased these for a business trip to Italy and wore them daily for the two weeks that I was there, during which I walked extensively. For me, there was a break-in period of a few days; before it loosens up, it will bite your heel, so I recommend wearing bandages or heel pads initially. Following the break-in, it's a very comfortable shoe and has served me well. I purchased a wide, and for this shoe, I found the width agreeable; in my experience, Cole Haan wide widths tend to be hit or miss (i.e., a wide is sometimes not all that wide). In terms of durability, I would not expect these to remain in good condition for more than a year if you wear them daily. The leather is not of high quality, but it's acceptable for the price. Expect them to crease very quickly if not using shoe trees. That doesn't bother me, but I know some find it objectionable. All in all, I like them and would buy them again. It's a comfortable alternative to traditional dress shoes for the office and works equally well for casual wear. Most higher quality options cost at least two or three times as much, and many are unavailable in a wide.
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Reviewed in the United States on December 16, 2025
N
Verified Purchase
Nickolas Weston
Omaha, US
★★★★★ 5
My favorite shoes
Size: 14 Wide, Color: White Leather
I’ve probably purchased like 40 pairs of these shoes or more. By far my favorite white sneaker. I have a large foot so the bigger sizes are appreciated. They’re versatile, literally go with anything and they are true to size. At a certain point they start to show wear and you can’t dress them up, but they last as a regular sneaker for a long time afterwards. I try to nab them on sale when they drop to $50-$70, absolute steal at that price point.
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Reviewed in the United States on May 9, 2026

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