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Holley EFIPart 300-121bkMade in CN
Product Details
⚙️
Vehicle Fitment & Compatibility
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Years
Make / Model
Submodel
Engine
1900
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Key Features
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 injector
Holley EFI 2x4 Dual Plane Intake Manifold, LS Gen 3 LS1/LS2/LS6 engines
Holley EFI 2x4 Dual Plane Intake Manifold, LS Gen 3 LS1/LS2/LS6 engines, w/Black Ceramic Coating
- 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”
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About this product
Holley EFI 2x4 Dual Plane Intake Manifold, LS Gen 3 LS1/LS2/LS6 engines, w/Black Ceramic Coating
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Product Specifications
Automotive Item Grade
Performance
Basic Operating RPM Range
1500-6500
Basic Operating RPM Range
1500-6500 RPM
Brand
Holley EFI
California Proposition 65 Chemical Name
1
California Proposition 65 Required
Yes
Carburetor Flange
Square/4150
Carburetor Quantity
2
Carburetor Studs Included
No
Category
Engine
CNC Ported
No
Color
Black
Construction
Cast
Country
CN
Cylinder Head Port Shape
Cathedral
Deck Height
9.24
EGR Port
No
Emission Code
3
Emission Code
4
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
HTS Code
8409915085
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
Prop 65 Yes/No
Yes
Rear Maximum Height
5.54
Removable Runners
No
Removable Top/Lid
No
RPM Power Band
1500-6500 RPM
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
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Warranty & Compliance
Warranty
Manufacturer's Limited 90 Day Warranty
Country of Origin
CN
⚠ Prop 65 Warning
Yes
1
Emissions Code
4
HS Code
8409915085
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Dimensions & Shipping
Product Dimensions
20.3 × 14.6 × 9.9 in
Shipping Dimensions
20.3 × 14.6 × 9.9 in
Weight
8505 g (8.51 kg)