1955-1960 Corvette Radiator - HP Series

: In stock

Regular price $1,199.99

Selected Part Number: 32-1149055A
Have a question?

Click "Need Help?" in the lower right or click here to ask a question!

Ordering from Canada? Customs and import tax may apply.

  • Complete aluminum radiator assembly with no plastic end tanks or rubber gaskets
  • Two row radiator design with dual 1.25-inch-wide core tubes for maximum cooling
  • Press formed aluminum tanks
  • Bottom fabricated tank is 3.25" thick, may not have mounting clearance if using stock frame and/or core support
  • Factory-sized cooling hose inlet and outlet connections
  • Radiators are assembled in the U.S.A. with a lifetime warranty
  • Radiator features factory style mounting brackets
  • Serpentine cooling fins deliver optimum airflow across core tubes for cooling
  • Optional transmission oil cooler available on select models
  • Pre-mounted 16-inch electric cooling fan package option
  • Electric fan temperature switch mounted in top tank to minimize wiring
  • Black Ice two-part epoxy coating available on all aluminum radiator models
  • Controlled atmosphere furnace brazed core with TIG welded tanks and brackets
  • Full wiring harness kit included with the pre-mounted fan package

Cool Your 1955-1960 C1 Corvette with a DeWitts Direct Fit® and Drive Worry Free

The first generation Corvette, built from 1953-1962, is often referred to as the C1, but some call them the “straight axle” generation due to this first generation of Corvette featuring a solid or “straight” rear axle versus the more commonly found independent rear suspension that came along in the C2s in 1963. One thing most can agree on is that these first gen Corvettes are much sought after, making them one of the most popular generation of Corvettes for owning.

The C1 Corvette is a great entry model into classic Corvette ownership and has seen a lot of interest in the “restomod” crowd. Restomodding a vehicle is when you modernize the drivetrain, suspension, and more while keeping the overall look subdued or stock appearing. To that end, the ever popular small block Chevy engine platform remains an extremely popular engine to power these cars. Being a factory engine fitment there are little to no issues with building a nice small block and it dropping right in. With various engine stroker kits, modern cylinder head designs, and such, the small block Chevy engine can make plenty of power to motivate your C1 Corvette that we’re here to help keep cool with our Direct Fit® C1 Corvette radiator packages. 

C1 Corvette Pro Series Direct Fit® Radiator Options

This C1 Corvette radiator is for the 1955-1960 model years of C1 production. DeWitts also offers our 1955-1960 C1 radiator in our Pro Series with a core featuring standard 1-inch dual core tubes for great cooling in standard performance applications. The optional SPAL 16-inch cooling fan solution comes preinstalled when ordered together with the temperature switch pre-fitted in the top tank. A complete fan wiring harness with relay is included as well. Our Black Ice two-part epoxy coating option is a semi-gloss black finish that provides an OE-like look for those that want to keep things low key under the hood. Be sure to add some DeWitts High Performance coolant to your order to protect your cooling system and help it achieve maximum thermal capabilities along with a new DeWitts 15 psi radiator cap for your radiator as well.


DeWitts Radiator Application Guide:

1955-1960 Corvette Radiator Only

32-1149055M (HP Series Direct Fit®, natural finish, manual trans)

32-1149055A (HP Series Direct Fit®, natural finish, auto trans)

32-1249055M (HP Series Direct Fit®, Black Ice finish, manual trans)

32-1249055A (HP Series Direct Fit®, Black Ice finish, auto trans)

1955-1960 Corvette Radiator with Electric Fan Package

32-4149055M (HP Series Direct Fit®, natural finish, 16-inch fan, manual trans)

32-4149055A (HP Series Direct Fit®, natural finish, 16-inch fan, auto trans)

32-4249055M (HP Series Direct Fit®, Black Ice finish, 16-inch fan, manual trans)

32-4249055A (HP Series Direct Fit®, Black Ice finish, 16-inch fan, auto trans)


HP Series Radiator

Radiator Style:

Single Pass

Radiator Flow Direction:


Material Type:


Inlet Location:

Upper Driver side

Outlet Location:

Lower passenger side

Row Quantity:


Tube Size:


Core Width:


Core Height:


Overall Width:


Core Thickness:


Overall Thickness:


Overall Height:


Cap Included:



Natural or Black

Filler Neck Height:


Inlet Size:


Outlet Size:



13 lbs

Cooler Thread Size:

5/16" Inverted Flare

16” Fan Notes

This fan package includes our Direct Fit® aluminum radiator, full face aluminum shroud with six (6) rubber check valves (flaps), and a high performance 16" SPAL Fan. SPAL is a world leader in the design and manufacture of high-quality electric axial fans for automotive use. The kit comes with a wiring harness and temperature switch for fan operation.

This package should only be used on cars with alternator conversions. Due to the fan motor size, there may be interference with the factory suspension on 1958-1960 model Corvettes.


16" SPAL Fan

Blade Diameter:


Blade Orientation:




Overall Width:


Overall Height:


Fan Thickness:




Fan SKU #:





6.7 lbs

# of Blades:








Fuse Required:

40 amp




California Proposition 65 Statement