ENGINE SERIES NUMBER AND SUFFIX CHART Cont A 1966 Cont Type Model Description Designation T60 80 366 8 Cyl with Air Equip YB C60 M60 S60 366 8 Cyl YT C60 S60 366 8 Cyl with Allison Automatic YX L60 T60 366 8 Cyl YZ T80 366 8 Cyl with Allison Automatic WZ HM JM70 80 401 6 Cyl STD HM JM80 478 6 Cyl Gas RPO L29 D50 3 53N 3 Cyl 2 Cycle Diesel 3D D60 X60 Y60 4 53N 4 Cyl 2 Cycle Diesel 4D HV JV U80 6V 53N 6 Cyl 2 Cycle Diesel 6D N50 Q50 D351 6 Cyl 4 Cycle Diesel STD N60 Q60 V60 D478 6 Cyl 4 Cycle Diesel STD N60 Q60 V60 DH478 6 Cyl 4 Cycle Diesel RPO L53 0682 HG JG TG70 DH478 6 Cyl 4 Cycle Diesel STD HJ JJ TJ70 D637 6 Cyl 4 Cycle Diesel STD HJ JJ TJ70 DH478 6 Cyl 4 Cycle Diesel RPO L49 1967 I94 6 CYLINDER G10 20 194 6 Cyl with Manual Trans SG G10 194 6 Cyl with A l R SC G10 194 6 Cyl with Powerglide Sl G10 194 6 Cyl with A l R and Powerglide SD 230 6 CYLINDER G10 230 6 Cyl with Manual Trans SK G10 230 6 Cyl with Powerglide SL G10 230 6 Cyl with A l R SR G10 20 230 6 Cyl with A l R and Powerglide SS P10 230 6 Cyl with A l R ST P10 230 6 Cyl with A l R and Powerglide SU P10 230 6 Cyl with Manual Trans TH P10 230 6 Cyl with Powerglide Tl 250 6 CYLINDER C40 S50 250 6 Cyl TM P40 250 6 Cyl T0 T40 250 6 Cyl TP C40 S50 250 6 Cyl with 4 Speed Trans TR 292 6 CYLINDER C50 60 M50 S50 292 6 Cyl UA T50 60 292 6 Cyl V UD C60 M60 S67 292 6 Cyl with Air Equip UF C50 60 550 60 292 6 Cyl with Powermatic UJ C50 60 292 6 Cyl with Powermatic and Air Equip UK C50 60 M50 S50 292 6 Cyl with 4 Speed Trans lH D UL T50 60 292 6 Cyl with 4 Speed Trans lH D UM C50 C60 M50 292 6 Cyl with 4 Speed Trans lH D and Air Equip UP P40 292 6 Cyl UW C40 S40 292 6 Cyl UY T40 292 6 Cyl UX C40 S40 292 6 Cyl with 4 Speed Trans H D UZ C50 60 M50 292 6 Cyl with Air Equip VS 283 8 CYLINDER C40 283 8 Cyl WJ T40 283 8 Cyl WK C40 283 8 Cyl with 4 Speed Trans lH D WN 327 8 CYLINDER C50 60 S50 60 M50 327 8 Cyl YW T50 60 327 8 Cyl YN C50 60 550 60 327 8 Cyl with Allison Automatic YO 050 60 S60 327 8 Cyl with Air Equip YF 050 60 560 327 8 Cyl with Allison Automatic and Air Equip YP 366 8 CYLINDER T60 366 8 Cyl with Allison Automatic WZ 050 60 M50 60 S50 60 366 8 Cyl 4 Barrel XA C50 60 M60 50 60 366 8 Cyl 4 Barrel with Allison Auto XB T50 60 366 8 Cyl 4 Barrel XC v T60 366 8 Cyl 4 Barrel with Allison Auto XD C50 60 M50 60 S50 60 366 8 Cyl YA C50 60 S50 60 M60 366 8 Cyl with Allison Automatic YG T50r6O 366 8 Cyl with Air Equip YB L60 T60 366 8 Cyl YZ T60 376 8 Cyl with Allison Automatic WZ 197O CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATION P A 3lS 29