Filler neck on driver side.<br><br>1957 Chevrolet Tr-Five Aluminum Performance Radiator. Straight 6 position cars for mount in front of radiator support. Direct fit for 57 cars. Upper inlet is on driver side so the hood can close correctly.<br><br>Copper Brass all metal original style radiator is built to order in the USA. Allow 4-6 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 cannot be canceled mid build and are non returnable (12 month exchange warranty included)<br><br>Core Dimensions: 16-5/8 x 23<br>Overall Dimensions: NA<br>Hose Locations: IN-DRIVER/OUT-PASS<br>Core Thickness: 1-3/4<br>Tanks: 2-1/2<br>Rows: 3<br>Tank Construction: Brass<br>Core Construction: Copper<br>Inlet Diameter: 1 1/2<br>Outlet Diameter: 1 3/4<br>TOC: YES 12-1/2 Center w/ 1/4 NPT<br>EOC: NA<br>Mount: Bracket Mount<br><br>Based on 60's style core with 1/2" tubes on 9/16" centers' the standard automotive core units are drop-in, stock replacements. Made from all new material they offer the highest quality for your stock application.<br>NOTE: We also offer this item in High Efficiency and Optima core constructions for added efficiency at added cost. Contact a sales associate for quotation.