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Holley EFI Holley LS EFI Manifold, 2x4 Dual Plane, Black GM LS1/LS2/LS6 300-121BK

Holley EFI Holley LS EFI Manifold, 2x4 Dual Plane, Black GM LS1/LS2/LS6 300-121BK
Holley EFI Holley LS EFI Manifold, 2x4 Dual Plane, Black GM LS1/LS2/LS6 300-121BK
$1,138.99 ea
NEWARRIVING SOONEstimated Ship Date 10/30/2024 (If Ordered Today)2 Available from HOLLEY PERFORMANCE PRODUCTS as of 10/11/2024
Model: 3992508
STANDARD
DELIVERY
Holley EFI 2x4 Dual Plane Intake Manifold, LS Gen 3 LS1/LS2/LS6 engines
Features:
  • 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”
All GM LS Gen 3 engines equipped with LS1/LS2 style cathedral port cylinder heads. NOTE: The EFI versions of the LS HI-Ram intake manifold and fuel rail are designed to accept Bosch Style EV-1 or Magneti Marelli Pico fuel injectors. OE LS fuel injectors may not fit properly in the Hi-Ram EFI intake manifold fuel rail assembly. There is a kit available separately for the LS7 Hi-Ram EFI to allow the use of stock LS7 fuel injectors, P/N 300-230 (see below in the service parts section).
Installation Notes:
All GM LS Gen 3 engines equipped with LS1/LS2 style cathedral port cylinder heads. NOTE: The EFI versions of the LS HI-Ram intake manifold and fuel rail are designed to accept Bosch Style EV-1 or Magneti Marelli Pico fuel injectors. OE LS fuel injectors may not fit properly in the Hi-Ram EFI intake manifold fuel rail assembly. There is a kit available separately for the LS7 Hi-Ram EFI to allow the use of stock LS7 fuel injectors, P/N 300-230 (see below in the service parts section).
About Holley Performance Products

Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy NASCAR Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds and engine dress-up products for street performance, race and marine applications. As a single solution or partnered with products from other Holley companies we can give you the edge you need over the competition!

Downloads:

Download Name File Size
199r10577rev3.pdf298.32KB

Videos:

Specifications:

Color Black
Construction Cast
Emission Code 4, 3
Engine GM LS1/LS2/LS6
Finish Black
Front Height 4.47 inch
Fuel System Type EFI
Manifold Type Dual Plane
Part Type Engine Intake Manifold
Product Type Intake Manifold
Rear Height 5.54 inch
RPM Power Band 1500-6500 RPM
Warranty Limited 90 Day

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Holley EFI Holley LS EFI Manifold, 2x4 Dual Plane, Black GM LS1/LS2/LS6 300-121BK:
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