1959 to 1964 Impala - Dual HO Spal 12 inch - Fan Shroud for DeWitts 32-4239014A

Keep your 1959 to 1964 Chevrolet Impala running cool with this precision-engineered fan shroud for dual High Output Spal 12" fans.  

Upgrade your cooling system with our custom-designed shroud for the DeWitts 32-4239014A or 1239014A radiator that delivers measurably better cooling efficiency than the standard DeWitss Dual Spal 11" shroud design.  Through optimized fan sizing and precision-engineered airflow channels, this shroud maximizes the contact between your fan and radiator surface—ensuring every CFM of airflow does its job.

While the standard Cold Case shroud is a solid choice, our design takes cooling performance to the next level—ideal for high-performance builds, hot climates, or anyone who demands the absolute best from their cooling system.

Key Performance Advantages:

• Enhanced Shroud performance: Flap doors allow "pass through" of high velocity air while at speed, dramatically cutting down the need for fan usage.
• Optimized Fan Size: Direct fit 12" fans were selected by Monty, see compatible fans below.
• Not sure which fans to use? Check out Monty's independent fan CFM test results to see real-world performance data and compare different fan options.
• Better Fitment: Custom-contoured to the Cold Case Radiator for a truly integrated  cooling solution, overlapping the side brackets, accommodating larger fans.  (Please double check the dimensions on the attached spec sheet before ordering to confirm you have room for your engine accessories!)

Compatible Fan Part Numbers (12" Fans):

• Spal 30102038 High Output 

Necessary Accessories for Installation (Not Included):

• Fan mounting hardware Eight M6x1 - 16mm long 
• Two Rubber Flap Doors, Spal part #30130012
• Fan relay and wiring harness (if not already installed)
• Make sure each relay is rated for 30 to 40 amps. Manufacturers include Spal, Painless Performance, Derale, Ron Davis, and American Autowire. (I personally have the Painless Performance kit, with 195 on, 185 off)
• Adjustable thermostat switch (recommended for automatic operation) typically included with most Fan Relay harnesses.
• See the "Down Flow Shrouds" video for installation tips.  

Specifications:

• Fits 1959 to 1964 Chevrolet Impala with DeWitts Radiator
• Designed specifically for DeWitts Radiator 32-4239014A and 32-1239014A with top and bottom mounting bar.  (It's a welded cross bar with three tapped holes for mounting of the Dual 11" Spal shroud, or this Dual 12" shroud)
• Accommodates the High Output 12" Spal, listed above (Double check you have space!)  
• Available in powder coated black or raw aluminum finish
  • Raw Aluminum does have witness marks that can be cleaned with Scotch Brite, or a Magic Eraser
  • Available in powder coated black or raw aluminum finish
    • Raw Aluminum does have witness marks that can be cleaned with Scotchbrite, or a Magic Eraser
• When ordering "Powder Coat", we will email you after your order is entered, for your color preference, based on the "color card" pictured here
• Precision CNC-cut from aircraft-grade aluminum
• Made in the USA

Note: This is an aftermarket shroud designed to work with the DeWitts 32-4239014A radiator. It is not manufactured by DeWitts Radiators. Fans and installation accessories sold separately. Lead time for Raw Aluminum is around one week. Powder Coated lead time is two weeks.

Don't forget to check out Monty's Discounted Parts and Blems, which may have working shrouds with minor Blemishes.