Jerry is correct on the designation. Screenshot below is from a 1951 Chevy dealer handout. The 235 is designated as a "Loadmaster 105" (105 being horsepower rating). The 1951 GM heritage Site Truck Data PDF also indicates the 235 to be the "Loadmaster" engine.
~ Dan 1951 Chevy 3 window 3100 Follow this story in the DITY Gallery "My Grandpa Carl's Truck and How it Became Mine" 1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)