The stock 261 had more provisions for durability than the 235, and were designed so to run the large 2 ton work trucks. Stellite hardened valves w/ rotaters, large radiator, the bypass thermostat, and the head with the "steam" holes mainly.


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]