GM LS Conversion/Dual-Pass Radiator 1959-1965 GM A-Body, 1960-1965 GM B-Body
InfoVehicle Info Needed
CHAMPION COOLING SYSTEMSPART NUMBER: 166-CC281B-LS

GM LS Conversion/Dual-Pass Radiator 1959-1965 GM A-Body, 1960-1965 GM B-Body

$25499
ShippingShips on 09/22/2026
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GM
GM LS Conversion/Dual-Pass Radiator
  • 1959-1965 GM A-Body
  • 1960-1965 GM B-Body
  • Champion Core 3-Row
  • Aluminum
  • Sold Individually

    Dimensions for Champion Cooling CC281B-LS

    Features:

    • Includes (1) 13 lb. radiator cap
    • 100-percent TIG-welded construction
    • 2 mm thick aluminum tank, fittings, and brackets
    • Billet filler neck
    • OE-style brass petcock
    • Brazed core technology with 3/8 in. spaced cooling tubes
    • Max Cool Louvered Technology with 14-16 cooling fins per inch

    Fitment Notes:

    • 1963-1965 Chevrolet Bel Air 3.8/4.1/4.6/5.3L
    • 1960-1965 Chevrolet Biscayne 3.8/3.9/4.1/4.6/5.3L
    • 1964-1965 Chevrolet Chevelle 3.2/3.8/4.6/5.3L
    • 1959-1965 Chevrolet El Camino 3.2/3.8/4.6/5.3L
    • 1959-1963 Chevrolet Impala 3.8/4.6/5.3L
    • 1959-1961 Chevrolet Kingswood 3.8/4.6L
    • Stay Cool with Champion Core LS-Swap Radiators

      Champion Cooling Systems Dual-Pass Radiators are a perfect choice for your LS-engine conversion vehicle. Available for most popular LS swap applications, these radiators are constructed entirely of aluminum for exceptional weight savings over stock equipment. The dual-pass flow offers superior cooling capabilities by flowing the coolant twice across the radiator. All radiators feature a 3-row core of 5/8 in. tubing to ensure proper flow when needed most. Champion Radiators are built with 100% welded seams, brazed core technology, and absolutely no epoxy. These radiators work great for both street or race cars and support approximately 600 to 800+ horsepower cooling capacity.

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      Upgrade your engine cooling system with the Champion Cooling Systems LS-Engine Conversion Aluminum Radiator — built for performance and reliability. Ideal for any modern swap, this high-quality radiator is purpose-designed for your LS engine application and ensures long-lasting thermal control without compromise.

      Crafted from full aluminum construction, it brings exceptional weight savings and superior heat-dissipation compared to traditional cast-iron or mixed-material units. With a true three-row core and dual-pass flow design, this radiator allows coolant to traverse the cooling medium twice for maximum efficiency under load. Whether you’re building a street cruiser or a high-powered track warrior, this unit supports 600 to 800+ horsepower setups with confidence.

      If you’re working on an ls swap radiator setup, this Champion solution ticks all the boxes: direct-fit for many LS-based conversions, high-capacity flow, and robust build quality. The all-aluminum assembly incorporates TIG-welded tanks, brazed core technology (0 % epoxy), and premium internals to resist warping, corrosion, or failure under elevated heat.

      We know how important it is to get your cooling right when performing an ls swap radiators upgrade. This radiator simplifies fitment, delivers industry-leading performance, and leaves nothing to chance. Choose the Champion Cooling Systems LS-Engine Conversion Aluminum Radiator and get the cooling support your build deserves — because when temperatures rise and demands increase, the right radiator makes all the difference.

    Part TypeRadiator
    Product LineChampion Cooling Systems LS-Engine Conversion Aluminum Radiators
    BrandCHAMPION COOLING SYSTEMS
    Package Height6.0
    Package Width24.0
    Package Length30.0
    Weight19.0 PG
    Overall Thickness2.75 in (69.9 mm)
    Overall Height21.5 in (546.1 mm)
    Radiator Cap IncludedYes
    Outlet Quantity1
    Inlet LocationUpper passenger side
    Inlet Size (In.)1.25
    Core Width22.75 in (577.85 mm)
    Cooler Fitting Size1/2 in.-20 Straight Thread, Inverted Flare
    Row Quantity3
    Overall Width28 in (711.2 mm)
    Tube Size0.625 in (15.9 mm)
    Radiator FinishPolished
    Inlet Quantity1
    Transmission CoolerYes
    Bracket MaterialAluminum
    Radiator StyleDownflow
    Outlet Size1.5 in (38.1 mm)
    Radiator MaterialAluminum
    Drain Valve IncludedYes
    QuantitySold individually
    Mounting TypeBracket
    Inlet AttachmentHose
    Core Height16.25 in (412.75 mm)
    Core Thickness2.5 in (63.5 mm)
    Mounting Brackets IncludedYes
    Outlet LocationLower passenger side
    Outlet AttachmentHose
    Fan IncludedNo
    Part FitmentDirect Fit
    Bracket FinishPolished
    Vendor Part NumberCC281B-LS
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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