This build features our high efficiency core (detailed below) with a triple pass function<br><br>Triple pass details:<br>By re-routing the coolant through the core three times the coolant travels farther in the temperature reducing air-flow and the additional time spent dropping temperature results in amazing heat transfer rates. Copper/brass construction to ensure dependability. (note: Tripleflow option requires that inlet and outlet be on opposite sides and must use auxiliary tranny cooler for automatic transmission vehicles)<br><br>1966-69 383 / 426 Hemi Radiator<br>Notes: 22" Wide, 70s Style Square Tank 4 Row For Hard To Cool<br><br>Dealer Part Number: 2582946<br><br>Check Hose placement (this one top passenger, bottom driver)<br><br>Check core size, (this item 22 inch across radiator core material)<br><br>Copper Brass all metal original style radiator is built to order in the USA. Allow 4-6 week build time. <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: 17-7/8 x 22<br>Overall Dimensions: 27 1/2 x 24 3/4<br>Hose Locations: IN-PASS /OUT-DRIVER<br>Core Thickness: 2-5/8<br>Tanks: 3<br>Rows: 4<br>Tank Construction: Copper<br>Core Construction: Brass<br>Inlet Diameter: 1 1/2<br>Outlet Diameter: 1 3/4<br>TOC: NO use external cooler (triple pass radiator)<br>EOC: NA<br>Mount: Bracket Mount<br><br>Copper 80's style core with 1/2" tubes on 3/8" centers. Increased cooling efficiency without modifications to car. 4 row High Efficiency offers more cooling efficiency than aluminum cores due to tubes on 3/8" centers. Copper/brass construction to ensure dependability.