From the Canadian casting number site:
1953 235 ENGINE:
ENGINE # C642,669 CYLINDER BLOCK # 5843350
ENGINE # C642,948 [1300 SERIES] Block # 3695408 Head # 3835499 [261]
ENGINE C OR T THEN # 668,082
CYLINDER HEAD # 3701887
CYLINDER BLOCK # 5843350 CAST DATE L-10-2 DECEMBER 10 1952
1953 235 BLOCK:
ENGINE # C645,068 CAST # 5843350 CAST DATE L-16-2 DECEMBER 16 1952
BELL HOUSING CAST # 3701433
1953 1304 ½ TON PICKUP
# 3131403006 ENGINE # C649,323 # 5843350 [235]
1953 ½ TON 5-WINDOW PICKUP
# 3131417937 ENGINE # C714,130 CYLINDER BLOCK # 5843350
1953 235 ENGINE:
Cylinder Head # 3701887
Cylinder Block # 5843350
1953 235 ENGINE:
Cylinder Head # 3701887
Cylinder Block: # 5843350
Engine # C704,488
1953 CHEVROLET PICK-UP
3131402932
Cylinder Head # 3701887
Cylinder Block: # 5843350