53moneypit,
Chevrolet (USA) used the Buick 322 V8 from 1956 when they introduced the 2-1/2 ton rated truck until they had a big enough motor of their own which was the 1958 348 Big Block. They were only available in the 9000 & 10,000 series trucks. The only engine option for those two series trucks was the 322 with 2 or 4 barrel carburator.
I have the 322 in both my 57 10500 Fire Truck and 56 9200 LCF.
Mike B
