All 1956 and 1957 9000 and 10000 Series Chevrolet trucks were equiped with the 322 Buick V8 only. The engine could have the standard 2v or the optional 4v carburator. It should be noted that the Chevrolet truck motor was built with different internal parts, ie hardened valve seats and 4 piston rings vs 3 in the cars.
I have a 1956 9200 coupled to a 6-speed Powermatic (Allison) and a 1957 10500 5+2.
1957 was the first year for Full Air Brakes in a Chevrolet truck.
Mike B
