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HOLLEY Manifold – BBC, Rect 4500 EFI

Original price was: £791.95.Current price is: £752.35. Inc. VAT

SKU: HOL300-564 Categories: , , Brand:

Description

Part Number: 300-564

Holley Single-Plane EFI Intake Manifold Kit (BBC Rectangular Port / 4500 Flange)

Engineered for high-performance Big Block Chevrolet V8 racing engines converting from carburetion to multi-point electronic fuel injection.

Key Product Features

  • ☑ High-Flow Single-Plane Design: Open plenum layout engineered for maximum high-RPM airflow and horsepower production.
  • ☑ 4500 Flange Compatibility: Accepts 4500 Dominator style throttle bodies for top-tier drag racing and high-displacement applications.
  • ☑ Integrated Fuel Rail Kit: Supplied with extruded, anodized, and laser-etched fuel rails plus mounting brackets for simple injector fitment.
  • ☑ Rectangular Port Specification: Computer-designed port passages optimized for Big Block Chevy 396-502+ CID engines with rectangular port heads.
  • ☑ Durable Cast Aluminum: Precision cast aluminum construction with a raw satin finish built to withstand demanding motorsport environments.

Technical Specifications

Brand Holley EFI
Part Number 300-564
Engine Compatibility Chevy Big Block V8 (396, 402, 427, 454, 502, up to 540 CID)
Cylinder Head Port Style Rectangular Port (2.28″ High x 1.48″ Wide)
Carburetor / Throttle Body Flange 4500 Dominator Style
Power Band 3,500 – 8,000 RPM
Manifold Style Single-Plane High-Rise / Open Plenum
Material / Finish Cast Aluminum / Natural Satin
EGR Provisions No EGR
Manifold Height Front: 5.96″, Rear: 5.96″
Fuel Rails Included Yes (Billet Anodized Aluminum)

What’s Included in the Box

  • 1 x Holley Single-Plane EFI Intake Manifold (Rectangular Port, 4500 Flange)
  • 2 x Anodized Aluminum Fuel Rails
  • 2 x Sets of Fuel Rail Mounting Brackets (Supports EV-1 and LS7 Style Fuel Injectors)
  • Installation Hardware & Port Fuel Rail Fittings

As an authorized UK supplier of Holley EFI components, JP Racing ensures you receive genuine high-performance products backed by full technical expertise. Order your Holley 300-564 manifold today for fast UK delivery and unmatched motorsport customer support.

Frequently Asked Questions

The included fuel rails and mounting bracket sets are designed to accept standard Bosch EV-1 style injectors (2.56" O-ring-to-O-ring) as well as GM LS7 style injectors (1.48" O-ring-to-O-ring), offering flexible fitment for various EFI setups.

No, the Holley 300-564 is specifically cast with rectangular intake ports (2.28" H x 1.48" W). For Big Block Chevy engines equipped with oval port cylinder heads, Holley offers dedicated oval port manifolds such as part number 300-562.

This manifold features a 4500 Dominator flange mounting pattern. It is intended for high-power, high-RPM big block builds using a 4500 style EFI throttle body. If you require a 4150 square-bore flange, see Holley part number 300-563.

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