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Holley EFI | SKU:
300-623
Holley 300-623 EFI 300-623 LS1 Lo-Ram EFI Front-Feed Manifold Kit
Burst Panel Flange
Regular price
$1,442.20 NZD
+ GST
Unit price
/
Unavailable
Shipping calculated at checkout.
Holley 300-623 EFI 300-623 LS1 Lo-Ram EFI Front-Feed Manifold Kit is not in stock at Fast Lane Spares and will ship direct from supplier
⚠ Special Order Item — ships direct from supplier. No returns, exchanges, or cancellations once processed. Please allow 7–20 days shipping.
Stock Status:
Description
Description
Burst Panel Flange
Part Number: 300-623
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.
Features and Benefits
• 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)
Part Number: 300-623
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.
Features and Benefits
• 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)
Specifications
Specifications
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Specifications
Basic Operating RPM Range 3500-8000 Brand Holley EFI Burst Panel Compatible Yes Category Air and Fuel Delivery Color Silver Construction Cast EGR Port No Emission Code 3 Engine GM LS1/LS2/LS6 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 Grade Type Performance Injector Quantity Single Inlet Location Front Intake Port Gasket(s) Included No Manifold Type Ultra Lo-Ram Material Aluminum Nitrous Bung(s) Included No Plenum Finish Natural Product Type Intake Manifold 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 -
Instructions
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