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LS Ultra Lo-Ram Plenum Top

Black Finish with Burst Panel recess

Part # 300-605BK

LS Ultra Lo-Ram Plenum Top

In Stock
Free Shipping - Lower 48 US States
Clearance
$146.97
was $234.00
save $87.03
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3

Emissions

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

See Emissions Details
The P/N 300-605 & 300-605BK Ultra Lo-Ram plenum tops are designed as part of the Holley LS Ultra Lo-Ram EFI intake manifold kits. The Ultra Lo-Ram kits are intended for boosted engine applications where the requirement of a intake manifold plenum burst panel may be recommended to protect the engine from intake plenum back-fire. The 300-605 plenum top is machined for a standard "large" 6-1/8" x 3-1/8" 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. P/N 300-605 has an as-cast satin finish and P/N 300-605BK has a powder-coat black finish. Flange seal o-ring cord and the mounting fasteners are included in the kit.

Features:

  • This Plenum top fits to all LS Ultra Lo-Ram Intake manifolds
  • Holley Ultra Lo-Ram Plenum top is machined for a standard “large” 6-1/8” x 3-1/8” 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)
  • Modular Lo-Ram design allows user customization for your induction system
  • Flange seal o-ring cord and the mounting fasteners are included in the kit
  • Compatible with Holley Lo-Ram billet burst panel duct P/N's 300-608 (clear anodized) & 300-608BK (black anodized)

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
Burst Panel CompatibleYes
Clearance CategoryAir and Fuel Delivery
ColorBlack
ConstructionCast
Discount Percentage26-50%
Emission Code3
EngineGM LS1/LS2/LS6
FinishBlack
Fuel System TypeEFI
Manifold TypeUltra Lo-Ram
Product TypeIntake Manifold Top
Recommended UseForced Induction
Sale CategoryAir and Fuel Delivery
WarrantyLimited 90 Day
UPC090127079584
Part Number300-605BK
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.