62 was the last year they used the 235 and the only year that the 261 was available as an option in light duty trucks. If it is a 230 or 250, it's not the original motor. They started using those in 63.

1962 Fleetside 4spd 235 w/O.D. posi 3:90
In the Stovebolt Gallery
1990 Subaru Legacy Wagon AWD 2.2 5sp
2013 Ram Tradesman C/V
My Webshot Photos]