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
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery 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]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 33509781705

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Jennifer Seat
Grantham, US
★★★★★ 5
Great exercise tool
Color: Multicolour
I use these to help with my physical Therapy and deep tissue massages at home. These were a low cost and I can have them In multiple locations.
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Reviewed in the United States on May 26, 2026
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Odalis Perez
Houston, US
★★★★★ 5
Good for small breeds and fun!
Color: Multi Squeaker Balls, Size: X-Small, Style: 4-Pack
I’m glad I found these for my 6 month puppies they absolutely love them super fun to play with. Although, the surface has come off due to my puppies biting it off. Look at the sizes as they have a few!
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Reviewed in the United States on April 26, 2026
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Olga
Draper, US
★★★★★ 5
A lot of fun for dogs
Color: Multi Squeaker Balls, Size: Large, Style: 4-Pack, Color: Multi Squeaker Balls, Size: Large, Style: 4-Pack
My dogs love it a lot. Balls don't fall off the balcony - good size. Great sound which catches dogs attention . Colorful . Good quality.
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Reviewed in the United States on May 28, 2026
J
Verified Purchase
Jarrett Austin pirtle
Chelsea, US
★★★★★ 5
👍🏼
Color: Multi Squeaker Balls, Size: Medium, Style: 4-Pack
This dog squeak ball has been a big hit in my home and keeps my dog entertained for long periods of time. The squeaker really grabs their attention and encourages play, tapping into their natural instincts to chase and fetch. My dog especially loves how it bounces and squeaks, making it perfect for both indoor and outdoor play. It’s lightweight and easy for them to carry around, even for quick games of fetch in the yard. In terms of durability, it has held up pretty well so far. The squeaker may not last forever with heavy use, but the ball itself still stays in good shape. Overall, it’s a fun, engaging toy that keeps my dog active and happy.
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Reviewed in the United States on April 29, 2026
P
Verified Purchase
Precise Disarray
Whiting, US
★★★★★ 4
budget friendly for dogs who lose balls in the creek
Color: Multi Squeaker Balls, Size: Medium, Style: 4-Pack
Not great quality, but works for our needs. I have a ball crazy lab. She loves for me to throw a ball using the Chuck-it Ball Launcher. We do this in our wide back yard that butts up to a creek. At some point during her run and fetch, she will take a quick detour right into the creek. She nearly always still has the ball, but once in awhile it is lost. Not wanting to chance it on more pricy (and more durable) balls, I get these or something like these. They dont cost much, yet they do the job. I' not upset if one gets sacrificed to the creek waters and mud. Since the balls end up getting wet often, they will kinda fall apart over time (chasing, kicking, throwing, retrieving, dog saliva etc). But she doesn't chew on them. Glad she doesnt as tennis balls arent good on teeth, but even if it was ok, the balls probably would be breached easily. SO get these if you are like me and want a ball that does the job but arent a total financial loss if get lost or destroyed. For indoor play we and by we I mean our 3 dogs demand that we use the rubbery max glow chuck-it ball. And will ignore this style ball. Yes, I am well trained. lol
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Reviewed in the United States on November 11, 2024

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