This build features a HE = HIGH EFFICIENCY copper core. This design utilizes 1/2 tubes on 3/8 center to provide 20% more heat transfer points than a traditional core. In a nut shell, it will come in the same thickness as an OEM 3 row but provide the cooling capacity of a 4 row.<br><br>smaller radiator for the stock L6 motors and various Small Block V8's with 18 tall by 21 3/4 wide copper core material <br><br>This item is designed to be a completely stock fit with fitment with OEM shroud.<br><br>Check core size and confirm you have the 18 x 21 prior to purchase. <br><br>Copper Brass all metal original style radiator is built to order in the USA. Allow 4 week build time. Item will be made with automatic transmission. For manual, specify upon ordering.<br>Purchaser is required to match illustration, thickness and measurements prior to purchase to ensure fitment. Item sold as illustrated and described disclosing model information is added as a reference. Custom built items are non returnable (12 month exchange warranty included) <br><br>Country of Manufacture United States<br>Make / Model Ford Ranchero<br>Year(s) 1970-71<br>Engine L6 250 / V8 302/351<br>Notes 21-3/4" Wide Core<br>Material Copper/Brass<br>Available Cores High Efficiency<br>Core Size 18 x 21-3/4<br>Available Rows 3<br>Core Thickness 2 <br>Cooler Size 6x1/8 NPT<br>Flow Type Crossflow<br>Inlet Size 1-1/2"<br>Outlet Size 1-1/2"