Trucks with Hydra-Matic transmissions did not come from the factory with 235s with hydraulic lifters.
All Powerglide-equipped car 235s had hydraulic lifters.
All car 235s from 1956 onwards had hydraulic lifters.
However, all 235s from 1958 onwards were set up for hydraulic lifters.
Someone could have placed hydraulic lifters into this 1959 truck 235.
Trucks that came equipped with a Powerglide transmission in 1960 and later might have had hydraulic lifters.
What is the Engine Serial Number in your 1959 235, biglou? (it is pressed into the block to the rear of the distributor).
What is the block date casting code?
