1
of
2
Loading...
Holley EFI | SKU:
300-121BK
Holley 300-121BK 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, w/Black Ceramic Coating
Regular price
$1,610.30 NZD
+ GST
Unit price
/
Unavailable
Shipping calculated at checkout.
Holley 300-121BK LS EFI Manifold - 2x4 Dual Plane - Black GM LS1/LS2/LS6 is not in stock at Fast Lane Spares and will ship direct from supplier
⚠ Special Order Item — ships direct from supplier. No returns, exchanges, or cancellations once processed. Please allow 7–20 days shipping.
Stock Status:
Holley 300-121BK LS EFI Manifold - 2x4 Dual Plane - Black GM LS1/LS...
Regular price
$1,610.30 NZD
+ GST
Unit price
/
Unavailable
Description
Description
Holley EFI 2x4 Dual Plane Intake Manifold, LS Gen 3 LS1/LS2/LS6 engines, w/Black Ceramic Coating
Part Number: 300-121BK
Holley EFI 2x4 Dual Plane Intake Manifold, LS Gen 3 LS1/LS2/LS6 engines
Features and Benefits
• The dual-plane equal-distribution layout produces great mid-range torque without compromising top end power.
• Appropriate for any street/performance, muscle car, or street rod enthusiast
• Intended for use on all GM LS Gen III engines equipped with LS1/LS2 style cathedral port cylinder heads
• Power band from 1500-7000 rpm
• Carbureted and EFI versions available
• Cast aluminum construction
• 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.
• Carb Flange Center-To-Center: 8-5/8”
All GM LS Gen 3 engines equipped with LS1/LS2 style cathedral port cylinder heads._x000D_ _x000D_ 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).
Part Number: 300-121BK
Holley EFI 2x4 Dual Plane Intake Manifold, LS Gen 3 LS1/LS2/LS6 engines
Features and Benefits
• The dual-plane equal-distribution layout produces great mid-range torque without compromising top end power.
• Appropriate for any street/performance, muscle car, or street rod enthusiast
• Intended for use on all GM LS Gen III engines equipped with LS1/LS2 style cathedral port cylinder heads
• Power band from 1500-7000 rpm
• Carbureted and EFI versions available
• Cast aluminum construction
• 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.
• Carb Flange Center-To-Center: 8-5/8”
All GM LS Gen 3 engines equipped with LS1/LS2 style cathedral port cylinder heads._x000D_ _x000D_ 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).
Specifications
Specifications
-
Specifications
Basic Operating RPM Range 1500-6500 Brand Holley EFI Carburetor Flange Square/4150 Carburetor Quantity 2 Carburetor Studs Included No Category Engine CNC Ported No Color Black Construction Cast Cylinder Head Port Shape Cathedral Deck Height 9.24 EGR Port No Emission Code 4 Engine GM LS1/LS2/LS6 Flange Style 4150 Square Bore Front Maximum Height 4.47 Fuel Injectors Included No Fuel Rail(s) Included Yes Fuel System Type EFI Gasket Or Seal Included Yes Grade Type Performance Intake Port Gasket(s) Included No Manifold Type Dual Plane Material Aluminum Nitrous Bung(s) Included No part type Engine Intake Manifold Plenum Finish Black Product Type Intake Manifold Rear Maximum Height 5.54 Removable Runners No Removable Top/Lid No Single Or Dual Plane Type Dual Plane Sub Category Cylinder Block Components Throttle Body Bore Diameter 1.75 Throttle Body Gasket Included No Throttle Body Included No Vacuum Ports Yes Warning California Proposition 65 Warranty Manufacturer's Limited 90 Day Warranty -
Instructions
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
