Skip to product information
1 of 2

Holley

Holley LS EFI Manifold - 2x4 Dual Plane - Black GM LS1/LS2/LS6

Holley LS EFI Manifold - 2x4 Dual Plane - Black GM LS1/LS2/LS6

SKU:300-121BK

Low stock: 2 left

  • Ships from Kentucky or Utah
  • Add $300+ for $10 off of your order!
  • Add $500+ for $20 off of your order!

Shipping Estimate

Tracking: 1-2 days

Average Shipping: 2-3 days once tracking is available

Regular price $728.95 USD
Regular price $820.95 USD Sale price $728.95 USD
Sale Sold out
Shipping calculated at checkout.
Holley LS EFI Manifold - 2x4 Dual Plane - Black GM LS1/LS2/LS6

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

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

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).

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???


Details:
  • Color: Black
  • Construction: Cast
  • Engine: GM LS1/LS2/LS6
  • Finish: Black
  • Front Height: 4.47 inch
  • Fuel System Type: EFI
  • Manifold Type: Dual Plane
  • Rear Height: 5.54 inch
  • RPM Power Band: 1500-6500 RPM
  • Warranty: Limited 90 Day


Links
Instruction Sheet
View full details