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Holley Ultra Lo-Ram Manifold Base and Fuel Rails Single Fuel Injector GM LS3/L92

Front-feed Single Injector manifold and fuel rails only-Satin Finish

Part # 300-672

Holley Ultra Lo-Ram Manifold Base and Fuel Rails Single Fuel Injector GM LS3/L92

In Stock
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$249.39
was $566.00
save $316.61
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3

Emissions

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

See Emissions Details
The Holley LS3 Ultra Lo-Ram intake manifold kits are designed for GM LS Gen III and IV engines equipped with GM LS3/L92 cylinder heads. These intake manifolds will work with OE or aftermarket cylinder heads. The Ultra Lo-Ram intake manifolds are designed for forced induction (supercharged or turbocharged) engine applications with peak power at 7000-8000 rpm depending on the application. The front entry plenum flange has a 105 mm opening to work with 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. The LS3 Ultra Lo-Ram is constructed to provide a very low profile modular intake manifold suitable for fabrication of special throttle body adapters or inlet ducts for custom installations. Available with single or dual injector provisions and a burst panel flange options.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:

  • Designed for GM LS Gen III and IV engines equipped with GM LS3/L92 cylinder heads
  • Provides best performance for forced induction (supercharged or turbocharged) engine applications with peak power at 7000-8000 rpm, depending on the application
  • Single-injector, high-volume fuel rails with mounting hardware, 8 AN o-ring ports
  • Modular LS3 Lo-Ram design allows customization for user desired configurations
  • Low height & compact packaging allows installation in most applications often under stock hoods
  • Available with both as-cast satin and black power-coat finishes
  • Billet options for the top and throttle body adapters are available seperately.

About Holley EFI

Find standalone EFI for LS, Coyote, Hemi and more at Holley.com. From engine swapping to managing up to 4000 horsepower, we have a solution for every project!

Brand Holley EFI
Clearance CategoryAir and Fuel Delivery
ColorSilver
ConstructionCast
Discount Percentage5-25%
Emission Code3
EngineGM LS3/L92
FinishSilver
Fuel System TypeEFI
Injector QuantitySingle
Inlet LocationFront
Manifold TypeUltra Lo-Ram
Product TypeIntake Manifold Base
Recommended UseForced Induction
RPM Power Band3500-8000 RPM
Sale CategoryAir and Fuel Delivery
WarrantyLimited 90 Day
UPC090127100837
Part Number300-672
3

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) 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


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
Manifold base height-5.67"
Limited 90 Day: See Details

*Free Shipping & Handling only offered to the contiguous US on orders over $150, excludes clearance parts and oversized packages.

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