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1967 to 1976 GM Trucks - Dual 14 inch fan Shroud - For Cold Case GMT558
1967 to 1976 GM Trucks - Dual 14 inch fan Shroud - For Cold Case GMT558
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Keep your GM or GMC Truck running cool with this precision-engineered fan shroud
Upgrade your cooling system with our custom-designed shroud for the Cold Case GMT558 radiator that delivers measurably better cooling efficiency than the standard Cold Case 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 14" fans were selected by Monty
- Upper and Lower Mount Provision: Upper and lower flanges are recessed to allow removal of the shroud without removing the mounts.
- 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 tanks, accommodating larger fans.
Compatible Fan Part Numbers (14" Fans):
- Spal 30102042 (14" Brushed High Performance Puller)
- Maradyne M142K (14" Brushed High Performance Puller)
- Proform 67035 (14" Low Profile BRUSHLESS)
Necessary Accessories for Installation (Not Included):
- Fan mounting hardware M6x1 - 16mm long
- TEN Rubber Flap Doors, Spal part #30130012
- Ordering a Raw shroud? Flap doors are here; Link to Rubber Flap Door part Number 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 "Twin Spals" video for installation tips.
Specifications:
- Fits 1967-1976 GM Trucks (C10, K10, C15, K15, GMC, Jimmy, Sprint, K25, C25, C35, Suburban)
- Designed specifically for Cold Case radiator model GMT558 and its variants. GMT558A, GMT558AB, LS Conversion GMT558ALS
- Accommodates 14" fans, inquire for different fans not listed
- Available in Raw Aluminum (Powder Coat upon request, as it'll be a one off custom)
- Raw Aluminum does have witness marks that can be cleaned with Scotch Brite, or a Magic Eraser
- Precision CNC-cut from aircraft-grade aluminum
- Made in the USA
Note: This is an aftermarket shroud designed to work with the Cold Case GMT558 radiator. It is not manufactured by Cold Case Radiators. Fans and installation accessories sold separately. Lead time for Raw Aluminum is around one week. If Powder Coated is out of stock, please order, as we do not replace stock without an existing order, 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.
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Worked great with a little modification on my Holley Frostbite Radiator in my 67 c10