This all aluminum dual ELECTRIC fan shroud is set to work for various Chevy/GM applications<br><br>Fan Setup: 1 x 16 (Not Included)<br>16 Inch Fan Opening: 15 3/8 x 15 3/8<br>Core Size: 18 1/2 x 21 7/8<br><br>see our other fan shrouds <br><br>fan shroud for 2 12 inch fans 221553(<a href="http://www.radiatorexpress.com/product.asp?part_id=221553" target="_blank">SKU 221553</a>)<br><br>fan shroud for 2 13 inch fans 230706 (<a href="http://www.radiatorexpress.com/product.asp?part_id=230706 " target="_blank">SKU 230706</a>)<br><br><font class="HiliteFONT">Suggested Add-Ons:</font><br>Thermostat Relay Kit (<a href="http://www.radiatorexpress.com/product.asp?part_id=221453" target="_blank">SKU 221453</a>) <br>Overflow Tank (<a href="http://www.radiatorexpress.com/category.asp?cat_id=R023" target="_blank">See Category</a>)<br>One 16" Electric fan required for this shroud (<a href="http://www.radiatorexpress.com/product.asp?part_id=221446" target="_blank">SKU 221446</a>)