SKU: 31286458329

Holley LS1/LS2/LS6 Dual Plane Mid Rise Intake Manifold - Black (HO300-121BK)

Sale price$859.50 Regular price$955.00
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Description

Holley LS1/LS2/LS6 Dual Plane Mid Rise Intake Manifold - Black (HO300-121BK)HO300 121BK DUAL 4150 EFI INTAKE LS1 LS2 Suit Dual 4150 EFI 4BBL 1000cfm Throttle Body Part Number: HO300 121BK 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

HO300-121BK - DUAL 4150 EFI INTAKE LS1 LS2

Suit Dual 4150 EFI 4BBL 1000cfm Throttle Body

Part Number: HO300-121BK

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: rdquo;

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: 31286458329

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4.4 ★★★★★
Based on 26 reviews
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Verified Purchase
Pam G
Louisville, US
★★★★★ 5
It’s Poyfect!
Color: White, Number Of Shelves: 2, Size: 35.4inch(set of 2), Color: White, Number Of Shelves: 2, Size: 35.4inch(set of 2)
i’ve been wanting this shelf for quite some time and finally decided I’m doing it. I’m absolutely completely satisfied with the size the quality of the wood and the paint job. It’s made very well. I have to say I was surprised at how nicely sanded it was and ready to hang.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 10, 2025
S
Verified Purchase
Susan George
Phoenix, US
★★★★★ 5
Great addition to nursery
Color: Walnut, Number Of Shelves: 4, Size: 16inch(set of 4)
Love it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
S
Verified Purchase
Steve from ATX
Houston, US
★★★★★ 5
Good finish, nice wood, good price
I have done quite a lot of woodworking in my life, and this is a nice piece of work. Great finish and nice looking.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 7, 2024
J
Verified Purchase
John
Lake Worth, US
★★★★★ 5
Easy install
Just installed in our bathroom. Feels solid. We have a potted plant on it now. You will want a drill bit extender to clear the shelf. I use the flexible type. Otherwise you won’t be able to get the screws in at a 90 degree angle.
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Reviewed in the United States on December 26, 2024
L
Verified Purchase
Lulu G. Lee
Dallas, US
★★★★★ 4
Very nice, well made.
The nine-inch oak shelf is well made, and is 45 degrees. The wall where I planned to install it was not, and I suspect this is the problem some of the reviews saying the shelf was not made at 45 degrees. In my case, we removed wood a bit at a time until we achieved a good fit. We did receive all of the hardware, but beware. The plastic straight insert anchors do not snug up with the supplied screws. However we used the supplied plastic toggles with better results. The hardware is why I rate this 4 stars. Otherwise, it is a nice piece, and well worth the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 13, 2024

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