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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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10

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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.
  • 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: 31286458329

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4.9 ★★★★★
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MarZ
Louisville, US
★★★★★ 5
Perfect Color
This shirt is so soft and the color is as depicted. Great mock turtle. Size is as expected. Ordered a large- 5’9 165# It fits well maybe a bit long but I wanted it loose.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
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Pam E
Fort Morgan, US
★★★★★ 5
Fits as expected and comfortable
Size: X-Large, Color: Navy Blue
My husband likes this short. Very comfortable and light. Good for cool spring nights
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Reviewed in the United States on June 5, 2026
B
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Benson Okumu
Alexandria, US
★★★★★ 4
Good deal
Size: Small, Color: White
Good choice to match with several outfits
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Reviewed in the United States on May 11, 2026
F
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frederick jones
Massapequa, US
★★★★★ 5
Good product
Size: X-Large, Color: Black
Exactly what I wanted fit perfect true to size very comfortable
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Reviewed in the United States on March 23, 2026
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Verified Purchase
TC in So. Cal.
Lowell, US
★★★★★ 2
Too short
Size: Medium, Color: White
Fit was okay, but the length was too short. I am 5'5" and if I tuck the shirt into my shorts or pants and raise my arms above my head, the shirt will pull out from my waistline/belt.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026

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