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

Dual Injector manifold and fuel rails-Satin Finish

Part # 300-673

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

In Stock
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Clearance
$264.58
MSRP $600.00
Save $335.42
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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 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
  • Dual-injector, separate-passage, high-volume fuel rails with mounting hardware, dual-fuel capable, 8 AN o-ring ports
  • Low height & compact packaging allows installation in most applications often under stock hoods
  • Available with both as-cast satin and black power-coat finishes
  • High volume fuel rails for eight and sixteen injector configurations. Mounting hardware included with3/4-16 O-ring ports (8 AN)and mounting hardware included with 3/4-16 O-ring ports (8 AN)

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 QuantityDual
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
UPC090127100851
Part Number300-673
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
Limited 90 Day: See Details

*Free Shipping & Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

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