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    Sale!

    Holley EFI LS1 (Cath) Ultra Lo-Ram Natural Kit with 102mm TB and 100lb injectors 300-621-100K

    Vendor: Holley EFI
    Part Number: 300-621-100K
    Save $212
    $1,689.95 $1,901.95

    Available to order. In-stock orders typically ship in 1 to 2 business days.

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
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    Product DetailsFAQReviewsRelated Products
    Save money a reduce headaches on your next intake manifold upgrade with Holley's EFI Top End Kits. Pick from one of three injector flow rates, your choice of manifold, and receive a throttle body that's matched to the inlet diameter plus the correct throttle cable bracket. All components are designed to work together, and better yet, save you money!


    Holley EFI LS1 (Cath) Ultra Lo-Ram Natural Kit with 102mm TB and 100lb injectors 300-621-100K


    Specifications:

    Brand Holley EFI
    Category Engine
    Color Natural
    Component 1 860005-1
    Component 2 300-621
    Component 3 20-154
    Component 4 522-108x
    Emission Code 8
    Engine Application LS - Cathedral
    Injector Size 100 lb/hr
    Intake Manifold Ultra Lo-Ram - 102mm
    part type Engine Top End Kit
    Product Type Engine Top End Kit
    Sub Category Cylinder Block Components
    Throttle Body Size 102
    Warning California Proposition 65
    Warranty Manufacturer's Limited 90 Day Warranty
    Description_SHO Engine Top End Kit
    Description_INV LS1 ULTRA LORAM NAT KIT W 102 TB 100S
    Description_DES LS1 (Cath) Ultra Lo-Ram Natural Kit with 102mm TB and 100lb injectors
    Description_EXT LS1 (Cathedral Port) Ultra Lo-Ram Natural Kit with 102mm Sniper Throttle Body and 100lb USCAR (EV6) high impedence injectors
    Description_MKT Save money a reduce headaches on your next intake manifold upgrade with Holley's EFI Top End Kits. Pick from one of three injector flow rates, your choice of manifold, and receive a throttle body that's matched to the inlet diameter plus the correct throttle cable bracket. All components are designed to work together, and better yet, save you money!
    Description_FAB O-ring seals on each port and lid, designed to hold as much boost as you can throw at it! Throttle bodies feature enlarged bore allows increased airflow to support higher horsepower requirements Designed to use OEM style GM LS IAC’s for easy idle control Kits include correct throttle bracket for each intake to eliminate guess work


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    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
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    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
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    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy
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    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

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