SKU: 10413183059

Holley Single Plane EFI Split-Design Intake Manifold GM LS1/LS2 Black 300-255BK

Sale price$314.98 Regular price$349.98
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Description

Holley Single Plane EFI Split-Design Intake Manifold GM LS1/LS2 Black 300-255BKOverview: 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 cathedral port 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

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 cathedral port 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 - 7.32" (0° carb flange angle) ? Port Size- 3.28" Height x 1.10" Wide ? Throttle Body Flange - Standard 4150 for up to 1-3/4" diameter throttle bores ? As-Cast Runner Cross-Sectional Area - 3.5 in² at the runner entry tapered to 2.9 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
Universal

Specs:

Barrels 4
Brand Holley
Color Black
Construction Cast
Emission Code 3
Engine GM LS1/LS2/LS6
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.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 10413183059

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4.7 ★★★★★
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jjb
Omaha, US
★★★★★ 5
Great Value For The Money
Color: White
I needed something to present my daughter's upcoming 18th birthday gift in. It's a charm bracelet and a bunch of individual meaningful charms. None of them come in gift boxes, and I want something to present them all together in. Failing to find a gift box to fit the bill, I thought that this cute jewelry box would be a nice alternative. I am pleasantly surprised at what I received for the price. I expected a flimsy cardboard-ish box, and this is not that. It's not heirloom quality, but it is a nice sturdy box, well put together, and the interior tray and dividers are thick. Interior fabric is nicely soft and velvety. The box is larger than I expected, it will hold a good amount of jewelry, and it's pretty and of much better quality than I anticipated. Will certainly make a very nice presentation for my daughter's gift, and she'll be able to use it for many years, I'm sure.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 5, 2025
D
Verified Purchase
d5oliver
Lake Worth, US
★★★★★ 5
Very nice Jewelry Box
Color: Jelly Pink
It was definitely worth the price I paid... it is able to hold a large variety of my Jewelry. It's very cute.
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Reviewed in the United States on May 18, 2026
P
Verified Purchase
patricia
Belleville, US
★★★★★ 5
Not your average jewelry box....
Color: Sage Green
A lovely simple yet elegant jewelry box - nicely made with a practical design. It has substantial weight and opens and closes nicely. This sage green color is muted with a matte finish making it soft in appearance. The gold closure adds just the right amount of interest. I placed a beautiful pendant inside as a surprise and together, these made the perfect gift for a 40th birthday. Would buy again!
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Reviewed in the United States on May 18, 2026
M
Verified Purchase
MamaSparkleNerd
Whiting, US
★★★★★ 5
Excellent jewelry box
Color: Black
Perfect! Just what I wanted for my side table. Sturdy, organized and looks sleek. 10/10
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Reviewed in the United States on May 8, 2026
M
Verified Purchase
MrsTolen
Natrona Heights, US
★★★★★ 4
Elegant Jewelry Organizer
Color: White, Color: White
The jewelry box exudes an elegant appearance. I ordered white, but the actual jewelry box is cream-colored. Nevertheless, I am pleased with the various organized compartments and the two-tiered design inside. The box is truly stunning and complements my dresser beautifully. Giving four stars due to the Misleading color.
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Reviewed in the United States on April 28, 2026

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