Used Climate Pro by ARS Visteon 337 Radiator for sale with automatic transmission cooler. It will work with automatic or manual transmission. It is still in the car if you want to see it with no leaks. I am preparing for high-performance engine upgrades, so I am going to aluminum radiator. It costs around $345 new but I will sell it for $120.

Check out this link for details:
http://www.woodys-auto-supply.com/mobile/mobile-auto-part-details.asp?prod=ARS-337

Word bank: Pontiac, Chevy, Chevrolet, RS, SS, 326, 327, 350, 400, 1967, 1968, 1969, cooling, first, gen, generation, thermostat.