Description

Holley EFI Intake Manifold 396, 402, 427, 454, 502 for 4150 Style Flange, Rectangular Port HeadsRectangle Port Dimensions: 2.28â? High x 1.48â? Wide3500-8000 RPM power band4150 carburetor mounting flangeHeight: Front 5.96″, Rear 5.96″No EGR provisionsPerfect for hard core drag racers in the NHRA Super Comp, Super Gas, and Street Classes as well as IHRA Quick Rod, Super Rod, and Hot Rod CategoriesOpen plenum/single plane designDesigned for today’s larger cubic inch big block Chevy race enginesIncludes fuel rails and mounting bracketsHolley EFI is excited to launch four new multi-point fuel injection intake manifolds for the big block Chevy.These new intakes are available to fit oval or rectangular port heads, and 4150 or 4500 style throttle bodies.These Intakes are ideal for converting your big block high performance or racing engine from carburetion to fuel injection.These intake manifolds were computer designed and dyno proven to produce more horse power and torque than other EFI manifolds.Each manifold package includes anodized and laser etched fuel rails, and two sets of mounting brackets (brackets allow use of 1.48″ or 2.56″ O-ring to O-ring injector lengths).

Basic Operating RPM Range: 3500-8000 RPM

Carburetor Flange: Square/4150

Carburetor Quantity: 1

Carburetor Studs Included: No

CNC Ported: No

Color: Natural

Construction: Cast

Cylinder Head Port Shape: Rectangle

Deck Height: 9.8 Inch

EGR Port: No

Engine: Chevy Big Block V8

Flange Style: 4150 Square Bore

Fuel Injectors Included: No

Fuel Rail(s) Included: Yes

Gasket Or Seal Included: No

Grade Type: Performance

Intake Port Gasket(s) Included: No

Manifold Type: High Rise

Material: Aluminum

Nitrous Bung(s) Included: No

Plenum Finish: Natural

Removable Runners: No

Removable Top/Lid: No

Single Or Dual Plane Type: Single Plane

Throttle Body Bore Diameter: 3.6 Inch

Throttle Body Gasket Included: No

Throttle Body Included: No

Vacuum Ports: Yes