Best Radiator For Ls Swap: Compare 10 Fitments and Kits

#1 · Best Overall

1. Speedway WindChill 26×19 Kit

• Dimensions: 1 x 26 x 19.25 in
• Weight: 26 lb

Best for: 26-inch LS fan kit.

Why it ranks #1: Combines a three-row core, standard LS hose fittings, steam and sensor ports, plus a shroud, 16-inch fan, and mounting hardware.

A 26-inch-wide radiator arrives with a shroud, one 16-inch fan, and mounting hardware in Speedway Motors’ WindChill kit. Its three-row core and standard LS hose fittings make the package a focused option for builders planning a universal LS-swap cooling setup.

The three-row aluminum core is paired with a single 16-inch fan and an aluminum shroud, so the kit supplies key airflow components alongside the radiator. Standard LS inlet and outlet fitting sizes avoid adapters or custom hoses according to the listing, while the built-in steam port and temperature-sensor thread fittings provide specified connection points. Furnace-brazed construction and TIG-welded end tanks are also listed. At 26 inches wide, this option is one of six stated widths.

Skip it if you want dual fans and a wider 33-inch radiator; Speedway Motors’ WindChill 33-inch kit lists those features.

This kit fits LS-swap builders whose layout calls for a 26-inch radiator and a single 16-inch fan. Its bundled shroud and hardware simplify component planning, but the one-fan setup is an important airflow-package boundary.

Listed on Amazon as: WindChill LS 3-Row Radiator, Shroud/Fan, 26×19

#2 · Best Universal Radiator

2. Speedway WindChill 31×19 Radiator

• Dimensions: 34.6 x 23.3 x 8.7 in
• Weight: 31 lb

Best for: Custom-width LS radiator.

Why it ranks #2: Designed for LS swaps with standard LS hose sizes, built-in steam and temperature-sensor fittings, a three-row core, and double-pass crossflow.

Six available widths, including 31 inches, let Speedway Motors’ WindChill three-row radiator address different LS-swap core-support openings. Standard LS hose fitting sizes, a built-in steam port, and a temperature-sensor thread fitting support a cooling-system layout without requiring adapters or custom hoses.

The three-row core and double-pass crossflow design combine added tube capacity with a two-pass coolant route, while the aluminum construction uses furnace-brazed core assembly and TIG-welded end tanks. Standard LS inlet and outlet sizes simplify hose planning, and built-in steam-port and temperature-sensor thread fittings give builders specified connection points for those systems. This listing is the plain radiator, so fan, shroud, and mounting hardware are not identified as included components.

Skip it if you want a listed fan, shroud, and mounting hardware included; Speedway Motors’ WindChill 26×19 kit bundles those items.

A builder fitting an LS swap to a chosen core-support width can use the size options and standard hose fittings to plan the cooling layout. Choose another package if you want fans or a shroud included.

Listed on Amazon as: WindChill LS Swap Aluminum 3-Row Radiator, 31×19, Plain

#3 · Best Large-Width Kit

3. Speedway WindChill 33-Inch Kit

• Dimensions: 1"L x 33"W x 19.25"H
• Weight: 36 lb
• Warranty Description: See Return Policy

Best for: Wide LS dual-fan kit.

Why it ranks #3: Its 33-inch, three-row radiator includes dual electric fans, a shroud, standard LS hose fittings, and a built-in steam port.

A 33-inch radiator, three-row core, dual electric fans, and shroud give this WindChill kit a broad bundled configuration for LS swaps. Its listed standard LS hose fittings and built-in steam port address key cooling-system connections, while the double-pass crossflow design defines its radiator layout.

The three-row aluminum core and double-pass crossflow design are paired with dual electric fans and an aluminum shroud, so radiator and airflow components come in one kit. Standard LS hose fittings are specified as 1.25-inch upper and 1.50-inch lower, and the built-in steam port provides another named connection point. The 33-by-19.25-inch dimensions make width a major packaging consideration. Product details differ on fan size, describing dual 12-inch fans in one place and dual 10- or 12-inch fans elsewhere.

Skip it if you have room for only a 28-inch radiator; Speedway Motors’ WindChill 28×19 kit has dual 10-inch fans and a smaller stated width.

This package suits LS builders with room for a 33-inch radiator who want dual fans, shroud, and standard LS fittings together. Resolve the conflicting fan-size details and check available width before installation.

Listed on Amazon as: WindchillTM 33-Inch LS Swap Aluminum Radiator Kit with Dual Fans, Transmission Cooler, and Shroud – 3-Row Core, Double Pass Crossflow Design, Universal Fit for LS Engines

#4 · Best Dual-Fan Compact Kit

4. Speedway WindChill 28-Inch Kit

• Dimensions: 1"L x 28"W x 19.25"H
• Weight: 29 lb
• Warranty Description: See Return Policy

Best for: 28-inch dual-fan LS kit.

Why it ranks #4: A 28-inch-wide LS-swap kit includes a shroud and two 10-inch fans rated at 800 CFM each, with standard LS hose fittings.

Two 10-inch electric fans rated at 800 CFM each pair with a 28-inch radiator in Speedway Motors’ WindChill LS-swap kit. The included aluminum shroud and standard LS hose fittings make this a compact-width package with specified airflow and connection details.

The double-pass crossflow radiator is paired with two 10-inch electric fans, each listed at 800 CFM, for a stated combined airflow capacity of 1,600 CFM. An aluminum fan shroud accompanies the fans, grouping airflow components with the radiator. Standard LS hose fittings support the intended swap application, and the 28-by-19.25-inch dimensions help establish packaging requirements. Its narrower stated width than Speedway Motors’ 33-inch WindChill kit can matter when comparing available radiator space.

Skip it if you need a 33-inch radiator with dual fans; Speedway Motors’ WindChill 33-inch kit lists that wider configuration.

Choose this kit when an LS swap calls for a 28-inch radiator and a bundled pair of 10-inch fans with shroud. Its stated dimensions and fan arrangement are the key boundaries for planning available space and airflow.

Listed on Amazon as: WindchillTM LS Swap Radiator Kit, 28×19 Double Pass Crossflow Design

#5 · Best Classic GM Fitment

5. Griffin LS ComboUnit

• Dimensions: 7.17 x 26.24 x 18.63 in
• Weight: 35.6 lb

Best for: Classic Camaro LS swap.

Why it ranks #5: Specifically fits listed Camaro, Chevelle, and Firebird applications with manual transmissions; includes a shroud, two fans, wiring, sensor, and cap.

A CrossFlow radiator bundled with a dual-fan kit gives Griffin’s CU-00009-LS a ready-to-integrate format for specified classic GM applications. Its fitment names 1967–1969 Camaro, 1964–1967 Chevelle, and 1967–1969 Firebird, with manual-transmission applications explicitly identified.

The PerformanceFit ComboUnit includes a shroud, two fans, wiring, a temperature sensor, and a radiator cap, bringing several cooling-system components together for installation planning. Its 22.5-by-19-by-2.68-inch core sits within a 26.24-by-18.63-by-7.17-inch overall package, useful dimensions for checking available space. The listed inlet location is top passenger, and the application information specifies GM outlets with a manual transmission, making transmission and outlet configuration key fit considerations.

Skip it if you need an automatic-transmission radiator for a 1973–1987 GM LS swap; Be Cool’s 62213 is listed for that application.

Choose this ComboUnit if your project matches its named classic GM applications and manual-transmission outlet requirement. Buyers should compare the overall dimensions and passenger-side top inlet location with their intended installation.

Listed on Amazon as: Griffin Radiator CU-00009-LS ComboUnit, LS Swap, Fits: 67-69 Camaro, 64-67 Chevelle, 67-69 Firebird

#6

6. Cold Case A-Body LS Radiator

• Warranty Description: Limited Lifetime Warranty

Best for: A-body dual-fan conversion.

Why it ranks #6: Vehicle-specific for 1968–1972 A-body LS swaps, it includes dual 12-inch fans and a pressure-tested, TIG-welded aluminum radiator.

Two 12-inch fans make this COLD-CASE radiator a bundled option for 1968–1972 A-body LS swaps. The all-aluminum unit is TIG welded and pressure tested, while its corrugated fins are specified to increase surface area and thermal transfer.

The dual-fan package combines radiator and airflow hardware for builders planning an A-body LS conversion, while the corrugated fins provide more surface area for thermal transfer according to the listing. COLD-CASE describes two oversized rows as performing like traditional three- or four-row radiators. These features establish the core and fan approach, but the supplied information does not give overall radiator dimensions or fan airflow figures, so installation planning needs those details from the product or vehicle setup.

Skip it if you need a radiator with stated overall dimensions and listed fan airflow; Griffin’s CU-00009-LS provides both core and package dimensions.

A-body builders in the listed 1968–1972 range who want dual 12-inch fans included will find the package’s application and construction details relevant. Seek installation dimensions and airflow data before finalizing a tightly constrained layout.

Listed on Amazon as: COLD – CASE RADIATORS 68-72 A-Body LS Swap Radiator and Dual 12in Fan, Silver (GMA546AK)

#7

7. Cold Case Camaro LS Radiator

• Weight: 39.2 lb
• Warranty Description: Limited Lifetime Warranty

Best for: 70–81 Camaro LS conversion.

Why it ranks #7: Targets 1970–1981 Camaro and Firebird LS swaps and includes a 12-inch fan; the listed construction is TIG-welded aluminum.

A 12-inch fan comes with this aluminum radiator for 1970–1981 Camaro and Firebird LS swaps, pairing vehicle-specific application coverage with an airflow component. COLD-CASE describes its TIG-welded radiator as an all-aluminum design with two oversized rows.

The two oversized rows are described as performing like traditional three- or four-row radiators, giving buyers a specified high-capacity core approach without a conventional multi-row layout. Its TIG-welded aluminum construction and included 12-inch fan make the package relevant to builders planning both the radiator and fan together. The listed application is specifically 1970–1981 Camaro and Firebird; the supplied details do not give radiator dimensions, so packaging space must be assessed from the actual installation information.

Skip it if you need dual 12-inch fans for a 1968–1972 A-body swap; COLD-CASE’s GMA546AK lists that dual-fan package.

This suits a 1970–1981 Camaro or Firebird LS-swap builder seeking an aluminum radiator with a fan included. Its stated vehicle range is the key boundary; verify the installation dimensions for your particular setup.

Listed on Amazon as: COLD – CASE RADIATORS 70-81 Camaro/Firebird LS Swap Radiator and 12in Fan, Silver (CHC557AK)

#8

8. Be Cool 62213 Radiator

• Dimensions: 25 x 7 x 39 in
• Weight: 21 lb

Best for: 73–87 automatic LS swap.

Why it ranks #8: Its stated direct-fit application is a GM LS swap with automatic transmission for 1973–1987 vehicles, though detailed core and fan specs are not supplied.

Be Cool’s 62213 is identified as a direct-fit radiator for 1973–1987 GM LS swaps with an automatic transmission, making transmission type and vehicle-era fitment its clearest buying cues. The listing places it in Be Cool’s Direct-Fit radiator series.

The named automatic-transmission application helps narrow the choice for a 1973–1987 GM swap, while the Direct-Fit designation distinguishes it from Be Cool’s Universal and Conversion series. Its listed dimensions are 25 by 7 by 39 inches, and the product weighs 21 pounds, giving builders measurements to consider when evaluating space and handling. The supplied details do not specify fan inclusion, core rows, or connection locations, so those installation choices remain unresolved in this listing.

Skip it if you need a fan and shroud included with a 26-inch LS radiator; Speedway Motors’ WindChill 26×19 kit lists both.

This is a candidate for builders targeting a 1973–1987 GM LS swap with an automatic transmission who value a direct-fit designation. Check fan, core, and connection details before committing to an installation plan.

Listed on Amazon as: Be Cool 62213 Direct-Fit Natural Finish Radiator for GM LS Swap w/Auto Trans 73-87

#9

9. LUXERAD S10 Conversion Radiator

• Weight: 21.5 lb

Best for: S10 conversion radiator kit.

Why it ranks #9: Lists S10 and Blazer V8-conversion fitment and includes a fan, but the fitment also references other engines and supplied dimensions conflict.

A three-row aluminum core paired with a fan gives this LUXERAD radiator an integrated cooling package for listed S10 and Blazer conversions. Its fitment also covers 1984–1990 Corvette 5.7L V8 applications, giving builders a specific route when one of those vehicle ranges matches their project.

The three-row core and aluminum construction are paired with a fan rated at 1,250 CFM, so the package combines radiator and airflow components rather than leaving fan selection entirely separate. TIG-welded construction is also specified. The listed overall dimensions are 29.75 by 15.38 inches in the description, while the features give different overall dimensions; check the radiator’s actual space requirements against your build before planning mounting. Listed fitment includes S10 and Blazer conversions from 1982–2002.

Skip it if you need a radiator specifically listed for a 1967–1969 Camaro; Griffin’s CU-00009-LS names that application.

S10 or Blazer conversion builders in the listed years who want a radiator-and-fan package should consider this model. Its listed Corvette fitment is narrower, and the conflicting dimensions make careful space planning especially important.

Listed on Amazon as: OHOB-COOL 3 Row Full Aluminum Radiator with Fan For 1984-1990 Chevy Corvette 5.7L V8 /1982-2002 S10 Conversion LS

#10

10. Bilstein Frostbite LS Radiator

• Warranty Description: Warranty

Best for: 94–04 LS swap radiator.

Why it ranks #10: The listing identifies an LS-swap radiator but supplies no usable dimensions, fan details, hose specifications, or clear vehicle application.

The Frostbite listing identifies a three-row aluminum radiator for 1994–2004 LS-swap applications, giving buyers a defined vehicle-era range to start fitment planning. The supplied product information is limited, so this option is best assessed by builders whose project matches that stated application.

The title specifies both an aluminum radiator and a three-row configuration, while the model name identifies the 1994–2004 LS-swap range. Those details offer a starting point for matching the part to a project, but the supplied listing provides no radiator dimensions, inlet or outlet locations, fan information, or construction detail. Because those specifics affect packaging and cooling-system connections, buyers should obtain them before settling installation plans. The specifications separately list plastic as the material, so the material information conflicts.

Skip it if you need listed dimensions, standard LS hose fittings, and a built-in steam port; Speedway Motors’ WindChill plain 3-row radiator specifies them.

Consider it only if the 1994–2004 application matches your build and you can resolve the conflicting material information. The sparse listing leaves key installation details, including dimensions and connections, unestablished.

Listed on Amazon as: Frostbite Aluminum Radiator 3-Row Ls-Swap 94-04