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Holley EFI

Holley EFI 300-623 LS1 Lo-Ram EFI Front-Feed Manifold Kit

Regular price £931.00 GBP inc VAT
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SKU: 300-623

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Holley EFIPart 300-623Made in CN

Product Details

Key Features

Burst Panel Flange

The Holley LS1/2/6 Lo-Ram intake manifold kits are designed for GM LS Gen III and IV engines equipped with GM LS1/2/6 (cathedral port) cylinder heads. These intake manifolds will work with OE or aftermarket cylinder heads. Plenum top is machined for a standard large 6-1/8 in. x 3-1/8 in. burst panel. SFI approved burst panels, burst panel frame sets, and gaskets may be purchased from various manufacturers such as Allstar Performance or Specialty Fasteners The Lo-Ram intake manifolds are designed for forced induction (supercharged or turbocharged) engine applications and the 105 mm throttle body part number 112-581 or similar models. The base intake manifold is designed with a lower overall height to fit under a stock or mildly modified hood in the front-feed configuration. The 300-623 Lo-Ram front-feed plenum entry was configured to provide a very low profile modular intake manifold suitable for turbocharged or centrifugally supercharged engines. The fuel rail kits come with two sets of brackets. A set for long (usually standard length) fuel injectors and a set for short (such as Pico, or LS7) fuel injectors.

Burst Panel Flange

  • Designed for GM LS Gen III and IV engines equipped with GM LS1/2/6 (cathedral port) cylinder heads
  • Designed for forced induction (supercharged or turbocharged) engine applications with peak power at 7000-8000 rpm depending on the application. Includes a burst panel flange in the lid
  • Plenum top is machined for a standard large 6-1/8 x 3-1/8" burst panel. Burst panels, burst panel frame sets, and gaskets may be purchased from various manufacturers such as Allstar Performance or Specialty Fasteners
  • With forced-induction and the short runner length the engine rpm at which peak power occurs is more likely to be coupled to the supercharger or turbocharger being used
  • Modular design allowing the use of front-feed plenum entry
  • Intake design facilitates custom inlet duct and throttle body placement
  • Low height to fit under a stock or mildly modified hood in the front-feed configuration
  • Front entry plenum flange allows design & fabrication of special throttle body adapters or inlet ducts for custom installations
  • High volume fuel rails and mounting hardware included with 3/4-16 o-ring ports (8 AN)
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About this product

Burst Panel Flange

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Product Videos

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Product Specifications

Automotive Item Grade
Performance
Basic Operating RPM Range
3500-8000
Brand
Holley EFI
Burst Panel Compatible
Yes
California Proposition 65 Chemical Name
1
California Proposition 65 Required
Yes
Category
Air and Fuel Delivery
Color
Silver
Construction
Cast
EGR Port
No
Emission Code
3
Flange Style
EFI
Front Maximum Height
6.86" height with throttle body adapter
Fuel Injectors Included
No
Fuel Rail(s) Included
Yes
Fuel System Type
EFI
Gasket Or Seal Included
Yes
Injector Quantity
Single
Inlet Location
Front
Intake Port Gasket(s) Included
No
Manifold Type
Ultra Lo-Ram
Material
Aluminum
Nitrous Bung(s) Included
No
Part Type
Engine Intake Manifold
Plenum Finish
Natural
Product Type
Intake Manifold
Prop 65 Yes/No
Yes
Recommended Use
Forced Induction
Removable Runners
No
Single Or Dual Plane Type
Single Plane
Throttle Body Bore Diameter
105
Throttle Body Included
No
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
3
HS Code
8409915085
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Dimensions & Shipping

Product Dimensions
20.2 × 15.2 × 14.9 in
Shipping Dimensions
20.2 × 15.2 × 14.9 in
Weight
13261 g (13.26 kg)