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300-563 - Holley EFI Intake - Chevy Big Block V8 EFI - default Image
300-563 - Holley EFI Intake - Chevy Big Block V8 EFI - additional Image
300-563 - Holley EFI Intake - Chevy Big Block V8 EFI - additional Image
300-563 - Holley EFI Intake - Chevy Big Block V8 EFI - additional Image
300-563 - Holley EFI Intake - Chevy Big Block V8 EFI - additional Image
300-563 - Holley EFI Intake - Chevy Big Block V8 EFI - additional Image
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Holley EFI Intake - Chevy Big Block V8 EFI

Holley EFI Intake Manifold 396, 402, 427, 454, 502 for 4150 Style Flange, Rectangular Port Heads

PART# 300-563

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Overview

Holley 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).

Features:

  • Open plenum/single plane design
  • No EGR provisions
  • 3500-8000 RPM power band
  • 4150 carburetor mounting flange
  • Includes fuel rails and mounting brackets
  • Designed for today's larger cubic inch big block Chevy race engines
  • Perfect 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 categories
  • Rectangle Port Dimensions: 2.28” High x 1.48” Wide
  • Height: Front 5.96", Rear 5.96"

Specs

BrandHolley EFI
ConstructionCast
Emission Code3
EngineChevy Big Block V8
Manifold TypeHigh Rise
Product TypeEFI Manifolds
RPM Power Band3500-8000
WarrantyLimited 90 Day
Part Number300-563

Emissions

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition and that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle

Tech Resources

Warranty Information

Limited 90 Day: See Details
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        *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

        Some parts are not legal for use in California or other states with similar regulations.