3 row copper will be 1/2 thicker than a stock 2 row. Check spacing before upgrading.<br><br>Mounting Brackets Grill Side<br>Fin area 20 inch wide<br>Cap in center<br>1963-68 V8 289/302 Radiator<br><br>Check core size and bracket layout prior to purchase. Item item has the side channel brackets set on the engine size of the unit. For similar item with different mount, see SKU 12862<br><br>fin/tube area is 20 inch wide. if you have bolt holes around 18.5, you need the smaller radiator!<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>Core Dimensions: 17 3/8 x 20 1/4 <br>Thickness: 1 3/4<br>Rows: 3<br>Tank Construction: Brass<br>Core Construction: Copper/Brass<br>Inlet Diameter: 1 1/2<br>Outlet Diameter: 1 3/4<br>TOC: Concentric<br>TOC Length: 6 inch 1/8 NPT <br>EOC: NA<br>EOC Length: NA<br>12 Month Warranty