Track OrderOrder Status & ReturnsHelpGift CardsHelpHelp CenterPhone1-800-345-4545
Shop by Category

Most Popular

Restoration

Shop All Categories

Shop New ProductsShop ALL BrandsTech ArticlesDeals
MY ACCOUNT
Order Status & Returns
CONTACT USHELP CENTER
Logo
Cart0
$000
300-923 Plenum Top for 300-921 Ultra Lo-Ram Modular Intake Manifold Base for Ford Coyote Engines (Natural)
InfoVehicle Info Needed
HOLLEYPART NUMBER: 510-300-923

300-923 Plenum Top for 300-921 Ultra Lo-Ram Modular Intake Manifold Base for Ford Coyote Engines (Natural)

$31895
ShippingShips on 09/15/2026
Lowest PriceLowest Price Guarantee

Intake Manifold Tops [Lids]
Modular Ultra Lo-Ram Intake Manifold Plenum Top
  • For Holley 300-921 Ultra Lo-Ram Base
  • Ford Coyote Based Engines:
    • 5.0L Coyote
    • 5.2L Voodoo
    • 5.2L Predator
  • Cast Aluminum
  • Natural Finish

    Holley 300-923 Modular Ultra Lo-Ram Intake Manifold Plenum Top:

    • Durable cast aluminum for boosted applications
    • Can be welded for modifications
    • Allows access to intake runners for porting

    Emissions Note:

    This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

    CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

    • Part TypeIntake Manifold Cover
    BrandHOLLEY
    Package Height12.0
    Package Width15.0
    Package Length24.0
    Weight25.0 PG
    Gasket Or Seal IncludedYes
    Cover Plate MaterialCast Aluminum
    Cover Plate LogoHolley EFI
    QuantitySold as a Kit
    Mounting Hardware IncludedYes
    Cover Plate FinishNatural
    Vendor Part Number300-923
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews
    Please click here to download the instructions PDF file

    Items You Need

    300-921 Ultra Lo-Ram Modular Intake Manifold w/Fuel Rails Base for Ford Coyote Engines (Natural)

    HOLLEY

    300-921 Ultra Lo-Ram Modular Intake Manifold w/Fuel Rails Base for Ford Coyote Engines (Natural)

    Part Number : 510-300-921
    $33695
    300-924 Throttle Body Adapter for Ultra Lo-Ram Modular Bases for Ford Coyote Engines w/150mm x 66mm Oval Throttle Body (Natural)

    HOLLEY

    300-924 Throttle Body Adapter for Ultra Lo-Ram Modular Bases for Ford Coyote Engines w/150mm x 66mm Oval Throttle Body (Natural)

    Part Number : 510-300-924
    $10595
    300-925 Throttle Body Adapter for Ultra Lo-Ram Modular Bases for Ford Coyote Engines w/93mm Single Round Throttle Body (Natural)

    HOLLEY

    300-925 Throttle Body Adapter for Ultra Lo-Ram Modular Bases for Ford Coyote Engines w/93mm Single Round Throttle Body (Natural)

    Part Number : 510-300-925
    $12495
    AN Hose & Fitting Assembly Kit

    JEGS

    AN Hose & Fitting Assembly Kit

    Part Number : 555-28010
    $758$9.99
    You Save$2.41
    Hose/Cable Cutters [Overall Length: 24 in.]

    JEGS

    Hose/Cable Cutters [Overall Length: 24 in.]

    Part Number : 555-80586
    $4699$50.69
    You Save$3.70
    Nylon Vise Jaws 4 in. Wide for AN Hose Ends

    JEGS

    Nylon Vise Jaws 4 in. Wide for AN Hose Ends

    Part Number : 555-80544
    $2470$24.99
    You Save$0.29
    Small Hose & Fitting Assembly Kit for -4, -6 & -8 AN Sizes

    KOUL TOOLS

    Small Hose & Fitting Assembly Kit for -4, -6 & -8 AN Sizes

    Part Number : 581-468
    $7350
    AN Hose Complete Pressure Test Kit [-3 AN to -16 AN]

    JEGS

    AN Hose Complete Pressure Test Kit [-3 AN to -16 AN]

    Part Number : 555-100285
    $9999$109.99
    You Save$10.00
    AN Wrench Set -4 AN to -12 AN Standard Wrenches

    JEGS

    AN Wrench Set -4 AN to -12 AN Standard Wrenches

    Part Number : 555-80558
    $6299$69.99
    You Save$7.00
    AN 180-Degree Max Flow Swivel Hose End [-8 AN Female to -8 AN Hose, Black]

    JEGS

    AN 180-Degree Max Flow Swivel Hose End [-8 AN Female to -8 AN Hose, Black]

    Part Number : 555-110042
    $1899$20.49
    You Save$1.50
    AN Male Straight Max Flow Swivel Hose End [-8 AN Male to -8 AN Hose, Black]

    JEGS

    AN Male Straight Max Flow Swivel Hose End [-8 AN Male to -8 AN Hose, Black]

    Part Number : 555-110092
    $1028$10.99
    You Save$0.71
    Pro-Flo 200 Series Stainless Steel Braided Hose -8 AN [15 ft.]

    JEGS

    Pro-Flo 200 Series Stainless Steel Braided Hose -8 AN [15 ft.]

    Part Number : 555-100923
    $6999$75.59
    You Save$5.60
    Fender Cover with Pocket [23 in. W x 31 1/2 in. L]

    JEGS

    Fender Cover with Pocket [23 in. W x 31 1/2 in. L]

    Part Number : 555-65010
    $1499$16.99
    You Save$2.00
    LED Drop Light with Built-In 120V Outlet

    JEGS

    LED Drop Light with Built-In 120V Outlet

    Part Number : 555-W2237
    $2899$31.99
    You Save$3.00
    Heavy-Duty Nitrile Gloves [7 mils Thick, Large]

    JEGS

    Heavy-Duty Nitrile Gloves [7 mils Thick, Large]

    Part Number : 555-1124
    $1799$19.99
    You Save$2.00
    Microfiber Towels, Oversized 16" x 16"

    JEGS

    Microfiber Towels, Oversized 16" x 16"

    Part Number : 555-80190
    $1399$15.09
    You Save$1.10
    Shop Towels Red

    JEGS

    Shop Towels Red

    Part Number : 555-80184
    $899$9.99
    You Save$1.00
    Disposable Shop Towels

    JEGS

    Disposable Shop Towels

    Part Number : 555-80187
    $1999$21.99
    You Save$2.00
    Speed Soap Hand Cleaner, Heavy-Duty Walnut Shell, 14 oz. Squeeze Bottle

    JEGS

    Speed Soap Hand Cleaner, Heavy-Duty Walnut Shell, 14 oz. Squeeze Bottle

    Part Number : 555-72338
    $809$15.99
    You Save$7.90
    Some parts are not legal for use in California or other states with similar laws / regulations
    p65 warning
    Your Cart

    Your shopping cart is empty!