GM 2046 – Aluminum Pontiac Tempest Radiator


The GM 2046 all aluminum radiator is an exact fit, OEM replacement for 1966 Pontiac Tempests with a 400 CI engine. Manufactured in the USA using controlled atmosphere brazing, the epoxy-free core has two rows of 26 mm tubes and measures 17.75 inches from header to header, 24.86 inches from side to side, and 2.25 inches thick. Aluminum tanks are TIG welded to the core to provide the strongest possible bond. Each unit is individually tested prior to shipping and guaranteed to be 100% leak free.

Add Ons

Core Upgrade

2 Rows of 1.25″ Fits most aluminum models

Additional information

Weight 30 lbs

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