Holley EFI - 300-121BK
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, w/Black Ceramic Coating
Holley EFI 2x4 Dual Plane Intake Manifold, LS Gen 3 LS1/LS2/LS6 engines
- 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 dual-plane equal-distribution layout produces great mid-range torque without compromising top end power.
- 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”
Basic Operating RPM Range: 1500-6500 RPM
Brand: Holley EFI
Carburetor Flange: Square/4150
Category: Intake Manifolds
Color: Black
Construction: Cast
EGR Port: No
Emission Code: 4
Engine: GM LS1/LS2/LS6
Finish: Black
Front Height: 4.47 inch
Front Maximum Height: 4.47 IN
Fuel System Type: EFI
Grade Type: Performance
Intake Port Gasket(s) Included: No
Manifold Type: Dual Plane
Material: Aluminum
Nitrous Bung(s) Included: No
Plenum Finish: Black
Product Type: Intake Manifold
Rear Height: 5.54 inch
Rear Maximum Height: 5.54 IN
Removable Runners: No
RPM Power Band: 1500-6500 RPM
Single Or Dual Plane Type: Dual Plane
Throttle Body Included: No
Warning: California Proposition 65
Warranty: Limited 90 Day
