SKU: 33509781705

Holley Single Plane Split-Design Intake Manifold GM LS1/LS2/LS6 Black 300-256BK

Sale price$350.98 Regular price$389.98
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Description

Holley Single Plane Split-Design Intake Manifold GM LS1/LS2/LS6 Black 300-256BKOverview: 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 ? Carburetor 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
  • Black Finish

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 Carb
Manifold Type Split Single Plane
Product Type Manifold
Rear Height 7.32"
RPM Power Band 2500-7000
Warranty Limited 90 Day
Shipping Notes
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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]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 33509781705

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4.7 ★★★★★
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K. Zander
Belleville, US
★★★★★ 5
Octopus dog toy
My dogs love this toy! They love to play tug of war with it, using the rope legs. The legs will pull out if they are strong dogs! But if the dogs are having fun with it, it isn't a problem. One of my dogs has shredded some of the legs and put a hole in yhe body, but she is a strong chewer. There is a squeaker in the octopus body. They enjoy the toy, so I would recommend it.
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Reviewed in the United States on February 28, 2024
N
Verified Purchase
Nile E Coyle
Massapequa, US
★★★★★ 4
Decent toy! Dog ripped off legs after a couple days.
As the title says the toy was pretty durable and it’s made of a good rubber which makes it durable. My dog is a medium sized pomsky and she had a hard time gripping the shell part. I stuffed the middle part with treats which by the way DO NOT do that. My dog got really frustrated bc the treats weren’t coming out and idk what happened bc she ended up gagging and coughing. No throw up tho so good enough for me. While my review seems pretty daunting it’s really not a bad toy if you make sure to keep an eye on the rope appendages.
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Reviewed in the United States on July 18, 2023
P
Verified Purchase
Phil
Bozeman, US
★★★★★ 5
New pup loves it
Our pup is a chewer but she doesn’t like normally toys or bones unless someone else is also playing with them with her. I searched for interactive toys and loved the little turtle so I decided to try it for her! We both work from home and play with her 80% of the day but that other 20% she needed a toy! My pup LOVES this toy (also loves the box that came with it haha). She plays with it by herself for a super long time and it keeps her entertained. She loves chewing it and also loves trying to get the treats. If you have a dog that’s picky about toys, this is a good one!
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Reviewed in the United States on August 17, 2024
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Verified Purchase
Susan M.
Lake Worth, US
★★★★★ 3
Not indestructible
Color: Frog (Green)
Cute toy but easily chewed through fabric.
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Reviewed in the United States on October 14, 2025
R
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Readers Frenzy
Massapequa, US
★★★★★ 5
Husky chew proof....so far
My husky has a habit of gutting and destroying any squeaky chew toy I have gotten for her. This one so far has lasted a over a month now I must say it does make her work for a treat when hidden in the center of it. So far all the stitching and parts are attached and like new. The plastic center where you hid the treats is intact, the firmness of it does make it difficult to get the treats you put in hard to remove-so choose wisely and not put in large pieces as there is one of the first pieces still inside the center as even I can't get it out. So my girl she enjoys carrying it around and playing with it so this chew toy is a win for this husky owner
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Reviewed in the United States on June 28, 2023

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