This all aluminum dual ELECTRIC fan shroud is set to work for Chevrolet trucks 1939-1940 with CHEVY SWAP engines. <br><br>Designed to fit our SKU 230493<br><br>Fan Setup: 2 x 10 (Not Included)<br>Fits Core Dimensions: 22 1/2" x 18"<br>(downflow, mounts are on side)<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>Budget fans: two 10" Economy Fans (<a href="http://www.radiatorexpress.com/product.asp?part_id=221448" target="_blank">SKU 221448</a>)<br>Suggest two 10" HURRICANE MAX Fans (<a href="http://www.radiatorexpress.com/product.asp?part_id=229228" target="_blank">SKU 229228</a>)