SKU: 22811416508

Holley LS EFI Manifold - 2x4 Dual Plane - Black - 300-121BK

Sale price$382.48 Regular price$424.98
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Description

Holley LS EFI Manifold - 2x4 Dual Plane - Black - 300-121BKOverview: Holley EFI 2x4 Dual Plane Intake Manifold, LS Gen 3 LS1 LS2 LS6 engines Features: The Holley GM LS1 LS2 LS6 2x4V dual plane was designed in the tradition of the great dual Holley 4160 induction systems that competed on drag strips, in Trans Am and at Lemans in the 1960s. The technology of the LS pushrod engine is now mated with the im The dual plane equal distribution layout produces great mid range torque without compromising top end power.

Overview:

Holley EFI 2x4 Dual Plane Intake Manifold, LS Gen 3 LS1/LS2/LS6 engines

Features:

  • The Holley GM LS1/LS2/LS6 2x4V dual-plane was designed in the tradition of the great dual Holley 4160 induction systems that competed on drag strips, in Trans-Am and at Lemans in the 1960’s. The technology of the LS pushrod engine is now mated with the im
  • The dual-plane equal-distribution layout produces great mid-range torque without compromising top end power. The LS engine architecture does not utilize an intake mounted water neck or distributor so it’s perfect for two Holley carburetors and this intak
  • Carbureted and EFI versions available
  • Power band from 1500-7000 rpm
  • Appropriate for any street/performance, muscle car, or street rod enthusiast
  • Cast aluminum construction
  • Intended for use on all GM LS Gen III engines equipped with LS1/LS2 style cathedral port cylinder heads
  • Carb Flange Center-To-Center: 8-5/8”

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Brand Holley EFI
Construction Cast
Emission Code 3
Engine GM Small Block Gen III/IV (LS Based)
Finish Black
Front Height 4.47 inch
Fuel System Type EFI
Manifold Type Dual Plane
Product Type Manifold
Rear Height 5.54 inch
RPM Power Band 1500-7000
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: 22811416508

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Sophie
San Leandro, US
★★★★★ 1
This purse is like a trash 🗑️
Color: Black
That’s a waste of money that purse is too expansive for the quality I’m gonna ask for a refund
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Reviewed in the United States on April 15, 2026
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cressy
Port Orchard, US
★★★★★ 5
Timeless piece
Color: Gold
Very classic .. wear both as a clutch or shoulder bag
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Reviewed in the United States on May 15, 2026
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Gigi
Alexandria, US
★★★★★ 5
Perfect!!
Color: White
If I could give this a thousand stars I would! It looks a lot more expensive than it actually is! I love the kisslock design and, it’s magnetic so you don’t have to worry about pinching your finger tips or struggling to snap it open or closed.
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Reviewed in the United States on April 2, 2026
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Vanessa Leal
Houston, US
★★★★★ 4
Cute clutch
Color: Silver
Cute clutch. I have received a lot of compliments with it. It is small. My iPhone 14 Pro Max didn’t fit if I wanted to close it. So that is the only downfall.
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Reviewed in the United States on August 17, 2025
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Really tasty! Subtle hints of vanilla and one if my new favorites. This will definitely be one I reorder. Do not hesitate to try this one out!
Whiting, US
★★★★★ 5
Beautiful little bag!
Color: Gold
Adorable little bag! I love the size and the balls at the top that look like the actual closure make it look more expensive then it is. Overall very impressed! I really wasn’t sure about this one because I’m a bit of a bag snob but I needed a little evening bag for a specific occasion and this definitely fits the bill. I can see myself actually using it a lot. Buy the bag!
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Reviewed in the United States on January 15, 2026

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