1968 - 1974 VIN Engine Codes
 VIN Engine Codes

The 5th digit of  the Vehicle Identification Number (VIN)
indicates which engine was originally installed in a vehicle.

Letter

 Engine Type Years
A   170 cid "Slant Six" 68 - 69
B   225 cid "Slant Six" 68 - 69
    170 cid "Slant Six" 70 - 74
C   Special Order 6 Cylinder 68 - 69
    225 cid "Slant Six" 70 - 74
D   273 cid 2 barrel 68
E   Special Order 6 Cylinder 70 - 74
F   318 cid 2 barrel 67 - 69
G   383 cid 2 barrel 68 - 69
    318 cid 2 barrel 70 - 74
H   383 cid 4 barrel 68 - 69
    340 cid 4 barrel 70 - 73
J   426 Hemi 67 - 69
    340 cid 3x2 barrel 70 -71
    360 cid 4 barrel 74
K   Special Order V8 66
    440 cid 350 horsepower 68 - 69
    360 cid 4 barrel 71 - 74
L   440 cid 375 Horsepower 68 - 69
    383 cid 2 barrel 70 - 71
    360 cid 4 barrel 245 Horsepower 74

M

   Special Order V8 68 - 69
    400 cid 2 barrel 72 - 74
N   383 cid 4 barrel 70 - 71
    400 cid 4 barrel 74
P   340 cid 4 barrel 68 - 69
    400 cid 4 barrel High Performance 74
R   426 Hemi 70 - 71
T   440 cid 4 barrel (except HP) 70 - 74
U   440 cid 4 barrel High Performance 70 - 74
V   440 cid 3x2 barrel 70 - 72
Z   Special Order V8 70 - 74