Here is a FAN SHROUD for your 55-57 Chevy in the 6-cylinder position. Works for all 6-cylinder cars and V-8 cars with the radiator in the 6-cylinder position.. We are proud to introduce our new 100% Made in USA fan shrouds. Made of durable 3/16" ABS plastic, these shrouds feature a smooth finish for that original look. The fit and quality is the best on the market, with slots cut narrower and deeper for an extra secure fit. The top and bottom of each shroud is cut deeper allowing for a better seal against the radiator. All this eliminates the need for any extra clips or drilling, making this a simple bolt-on installation.