Datsun 1970-1989 1200 / Nissan Sunny heater core 4864 It is called the "low

It is called the "low style"

Fuel capacity ~9-1/2 gallons

one-off or hard to find copper and brass heater core for a Harrison heater core  your 1935 Packard you are not alone and you may be in luck

There are many types of heaters in this period

A few notes on this truck

Datsun 1970-1989 1200 / Nissan Sunny heater core 4864 It is called the "lowThis copper heater core isfor the Nissan Sunny or the Datsun 1200. The second generation Nissan Sunny (B110) was launched in January 1970 and sold until 1973. The Sunny Truck was released in 1971 and production lasted until 1989. The same vehicles were known as the Datsun 1200 in export markets. We do not keep this heater core in stock & will need to fabricate it. Our build queue varies. Present Lead times. Made in the USA