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Big Block Chevy Suffix Codes: Q - YZ
GM body designation. All these are identified here. Quickly, A = Chevelle, F = Camaro, X = Nova. If you're looking at the engine code - this is already known. If you're looking at the casting # information and it mentions 3970010 "A/F/X/Y/B".... basically this means "it's used in everything", whereas if it simply states "Y"... this means Corvette.
Abbreviations: AB = Air Brakes, AR = Air Injector Reactor, CA = California,
HD = Heavy Duty, hdc = heavy duty clutch, HP = High Performance, LP = Liquid Propane Gas,
PG = Powerglide, mt = manual trans, mt-3, 3 speed manual, SHP = Special High Performance,
TH = Turbo Hydramatic, ti = transistor ignition.
Induction is one (1) 4 barrel carburetor unless specified.
| Code |
Year |
Model |
CID |
HP |
Trans |
Application |
| Q | 1961 | Impala | 409 | 360 | 4sp | 580, HP Solid Cam/11.25 |
| QA | 1961 | Impala | 409 | 360 | 4sp | 580, HP Solid Cam/11.25cr |
| QA |
1962 | Impala | 409 | 380 | 4sp | 580, HP Solid Cam/11.00cr |
| OA |
1963 | Impala | 409 | 400 | 4sp | L-31 |
| QA |
1964 | Impala | 409 | 400 | 4sp | L-31 |
| QB |
1962 | Impala | 409 | 409 | 4sp | 587 dual quad |
| QB |
1963 | Impala | 409 | 425 | 4sp | L-80 dual quad |
| QB |
1964 | Impala | 409 | 425 | 4sp | L-80 dual quad |
| QC |
1963 | Impala | 409 | 340 | 4sp | L-33 |
| QC |
1964 | Impala | 409 | 340 | 4sp | L-33 |
| QD |
1962 | Truck | 409 | 252 | | 580, 60 |
| QD |
1963 | Truck | 409 | 252 | | L-40 60 |
| QD |
1964 | Truck | 409 | 252 | | L-40 60 |
| QD |
1965 | Truck | 409 | 252 | | L-40 60 |
| QE |
1962 | Truck | 409 | 252 | | 580, 60 |
| QE |
1963 | Truck | 409 | 252 | | L-40 60 |
| QE |
1964 | Truck | 409 | 252 | | L-40 60 |
| QE |
1965 | Truck | 409 | 252 | | L-40 60 |
| QG |
1963 | Impala | 409 | 340 | PG | L-33 |
| QG |
1964 | Impala | 409 | 340 | PG | L-33 |
| QJ |
1963 | Truck | 409 | 252 | | L-40 60 |
| QJ |
1964 | Truck | 409 | 252 | | L-40 60 |
| QJ |
1965 | Truck | 409 | 252 | | L-40 60 |
| QM |
1963 | Impala | 427 | 435 | 4sp | Z-11 Dual Quad HP Solid Cam |
| QN |
1964 | Impala | 409 | 400 | 4sp | L-31 TI |
| QP |
1964 | Impala | 409 | 425 | 4sp | L-80 Dual Quad TI |
| QQ |
1964 | Impala | 409 | 340 | 4sp | L-33 TI |
| QR |
1964 | Impala | 409 | 340 | PG | L-33 TI |
| T |
1958 | Truck | 348 | 230 | | 576, 50 |
| T |
1959 | Truck | 348 | 230 | | 576, 50 |
| TA |
1958 | Truck | 348 | 230 | | 576, 50 |
| TA |
1959 | Truck | 348 | 230 | | 576, 50 |
| TBG |
1970 | Truck | 402 | 310 | 400 | L-47 10, 20, 30 |
| TBH |
1970 | Truck | 402 | 310 | | L-47 10, 20, 30 |
| TC |
1960 | Truck | 348 | 230 | | 576, 50 |
| TC |
1961 | Truck | 348 | 230 | | 576, 50 |
| TC |
1962 | Truck | 348 | 220 | | 576, 50 |
| TC |
1963 | Truck | 348 | 220 | | 576, 50 |
| TC |
1964 | Truck | 348 | 220 | | 576, 50 |
| TCH |
1992 | Truck | 454 | 230 | | L-19 TBI VIN N |
| TCJ |
1992 | Truck | 454 | 230 | | L-19 TBI VIN N |
| TCK |
1992 | Truck | 454 | 230 | | L-19 TBI VIN N |
| TCL |
1992 | Truck | 454 | 230 | | L-19 TBI VIN N |
| TCM |
1970 | Truck | 366 | 235 | | L-41 60 |
| TCN |
1992 | Truck | 454 | 230 | | L-19 TBI VIN N |
| TCS |
1992 | Truck | 454 | 230 | | L-19 TBI VIN N |
| TCT |
1992 | Truck | 454 | 230 | | L-19 TBI VIN N |
| TD |
1960 | Truck | 348 | 230 | | 576 50 |
| TD |
1961 | Truck | 348 | 230 | | 576 50 |
| TD |
1962 | Truck | 348 | 220 | | 576 50 |
| TD |
1963 | Truck | 348 | 220 | | 576 50 |
| TD |
1964 | Truck | 348 | 220 | | 576 50 |
| TDH |
1992 | Truck | 454 | 230 | | L-19 TBI VIN N |
| TDJ |
1992 | Truck | 454 | 230 | | L-19 TBI VIN N |
| TDK |
1992 | Truck | 454 | 230 | | L-19 TBI VIN N |
| TDL |
1992 | Truck | 454 | 230 | | L-19 TBI VIN N |
| TE |
1960 | Truck | 348 | 230 | | 576 50 |
| TE |
1961 | Truck | 348 | 230 | | 576 50 |
| TE |
1962 | Truck | 348 | 220 | | 576 50 |
| TE |
1963 | Truck | 348 | 220 | | 576 50 |
| TE |
1964 | Truck | 348 | 220 | | 576 50 |
| TF |
1960 | Truck | 348 | 230 | | 576 50 |
| TF |
1961 | Truck | 348 | 230 | | 576 50 |
| TF |
1962 | Truck | 348 | 220 | | 576 50 |
| TF |
1963 | Truck | 348 | 220 | | 576 50 |
| TF |
1964 | Truck | 348 | 220 | | 576 50 |
| THB |
1972 | Truck | 402 | 210 | 400 | L-47 30, fwd |
| TKA |
1971 | Truck | 402 | 310 | | L-47 10, 20,30 |
| TKA |
1972 | Truck | 402 | 210 | | L-47 10, 20 |
| TKA |
1982 | Truck | 454 | 210 | | LE-8 VIN W, 20, 30 |
| TKB |
1971 | Truck | 402 | 310 | 400 | L-47 10, 20, 30 |
| TKB |
1972 | Truck | 402 | 210 | 400 | L-47 10, 20 |
| TKC |
1982 | Truck | 454 | 210 | | LE-8 VIN W, 20, 30 |
| TKD |
1982 | Truck | 454 | 210 | | LE-8 VIN W, 20, 30 |
| TKF |
1982 | Truck | 454 | 210 | | LE-8 VIN W, 20, 30 |
| TKH |
1982 | Marine | 454 | 210 | | LE-8 |
| TKH |
1982 | Truck | 454 | 210 | | LE-8 VIN W, 20, 30 |
| TKM |
1972 | Truck | 402 | 210 | | L-47 AR, 10, 20 |
| TKW |
1972 | Truck | 402 | 210 | | L-47 20, 30 |
| TKX |
1972 | Truck | 402 | 210 | 400 | L-47 20, 30 |
| TLM |
1972 | Truck | 402 | 210 | 400 | L-47 AR, 10, 20 |
| TMC |
1970 | Truck | 366 | 235 | | L-41 50, 60 |
| TMD |
1970 | Truck | 366 | 235 | | L-41 50, 60 |
| TMF |
1970 | Truck | 366 | 235 | | L-41 60 |
| TMG |
1970 | Truck | 366 | 235 | | L-41 60 |
| TMH |
1970 | Truck | 366 | 235 | | L-41 50, 60 |
| TMI |
1970 | Truck | 427 | 260 | | L-43 60 |
| TPH |
1992 | Truck | 454 | 230 | | L-19 TBI VIN N, fwd |
| TPJ |
1992 | Truck | 454 | 230 | | L-19 TBI VIN N |
| TPK |
1992 | Truck | 454 | 230 | | L-19 TBI VIN N, fwd |
| TRA |
1973 | Truck | 454 | 240 | | LS-4 VIN Z, L, AR, 20, 30 |
| TRB |
1973 | Truck | 454 | 240 | 400 | LS-4 VIN Z, L, AR, 20, 30 |
| TRB |
1977 | Truck | 454 | 250 | | LF-8 VIN S, Motorhome, 30 |
| TRC |
1973 | Truck | 454 | 250 | | LS-4 VIN Z, L, AR, 20, 30 |
| TRC |
1977 | Truck | 454 | 250 | | LF-8 VIN S, fwd, 30 |
| TRC |
1980 | Truck | 454 | 225 | | LE-8 VIN W, 20, 30 |
| TRD |
1977 | Truck | 454 | 250 | | LF-8 VIN S, fwd, 30 |
| TRF |
1978 | Truck | 454 | 250 | | LF-8 VIN S, fwd |
| TRF |
1980 | Truck | 454 | 225 | | LE-8 VIN W, 20, 30 |
| TRH |
1973 | Truck | 454 | 240 | 400 | LS-4 VIN Z, L, 10, 20 |
| TRH |
1974 | Truck | 454 | 245 | 400 | LS-4 VIN Z, L, 10, 20 |
| TRH |
1978 | Truck | 454 | 250 | | LF-8 VIN S, 30, fwd |
| TRH |
1980 | Truck | 454 | 225 | | LE-8 VIN W, 30, fwd |
| TRJ |
1973 | Truck | 454 | 240 | | LS-4 VIN Z, L, 20, 30 |
| TRJ |
1974 | Truck | 454 | 245 | | LS-4 VIN Z, L, 20, 30 |
| TRK |
1973 | Truck | 454 | 240 | 400 | LS-4 VIN Z, L, 10, 20 |
| TRK |
1978 | Truck | 454 | 250 | | LF-8 VIN S, fwd |
| TRK |
1981 | Truck | 454 | 210 | | LE-8 VIN W, AR, 20, 30 |
| TRL |
1973 | Truck | 454 | 240 | 400 | LS-4 VIN Z, L, AR, 10 |
| TRL |
1974 | Truck | 454 | 245 | 400 | LS-4 VIN Z,L, AR, 10, 20 |
| TRL |
1978 | Truck | 454 | 250 | | LF-8 VIN S, fwd |
| TRL |
1981 | Truck | 454 | 210 | | LE-8 VIN W, AR, 20, 30 |
| TRM |
1978 | Truck | 454 | 250 | | LF-8 VIN S, 20, 30 |
| TRR |
1973 | Truck | 454 | 250 | | LS-4 VIN Z, L, 20, 30 |
| TRR |
1979 | Truck | 454 | 205 | 400 | LF-8 VIN S, 10, 20 |
| TRS |
1979 | Truck | 454 | 205 | 400 | LF-8 VIN S, 20 |
| TRT |
1974 | Truck | 454 | 245 | 400 | LS-4 VIN Z, L,10, 20 |
| TRT |
1979 | Truck | 454 | 210 | | LF-8 VIN S, 30 |
| TRU |
1974 | Truck | 454 | 245 | 400 | LS-4 VIN Z, L, 10, 20 |
| TRU |
1979 | Truck | 454 | 205 | 400 | LF-8 VIN S, 20, 30 |
| TRW |
1974 | Truck | 454 | 245 | 400 | LS-4 VIN Z, L, f.d, 20, 30 |
| TRW |
1979 | Truck | 454 | 210 | 400 | LF-8 VIN S, fwd, 20 |
| TRX |
1979 | Marine | 454 | 245 | | LF-8 |
| TRX |
1974 | Truck | 454 | 245 | 475 | LS-4 VIN Z, L, Motorhome, fwd, 30 |
| TRX |
1979 | Truck | 454 | 210 | 400 | LF-8 VIN S, fwd, 30 |
| TRY |
1975 | Truck | 454 | 215 | 400 | LS-4 VIN Z, L, 10 |
| TRY |
1978 | Truck | 454 | 250 | | LF-8 VIN S, 20, 30 |
| TRZ |
1975 | Truck | 454 | 215 | 400 | LS-4 VIN Z, L, 20, 30 |
| TRZ |
1976 | Truck | 454 | 250 | | LF-8 VIN Y, 20, 30 |
| TRZ |
1977 | Truck | 454 | 250 | | LF-8 VIN S, 20, 30 |
| TRZ |
1979 | Truck | 454 | 205 | | LF-8 VIN S, 10, 20 |
| TSA |
1975 | Truck | 454 | 215 | 400 | LS-4 VIN Z, L, 20, 30 |
| TSA |
1976 | Truck | 454 | 250 | | LF-8 VIN Y, 20, 30 |
| TSA |
1977 | Truck | 454 | 250 | | LF-8 VIN S, 20, 30 |
| TSB |
1975 | Truck | 454 | 215 | 475 | LS-4 VIN Z, L, Motorhome, fwd |
| TSB |
1978 | Truck | 454 | 250 | | LF-8 VIN S, 30 |
| TSC |
1975 | Truck | 454 | 215 | 400 | LS-4 VIN Z, L, 20, 30 |
| TSC |
1977 | Truck | 454 | 250 | | LF-8 VIN S, 20, 30 |
| TSD |
1975 | Truck | 454 | 215 | 400 | LS-4 VIN Z, L, 20, 30 |
| TSD |
1977 | Truck | 454 | 250 | | LF-8 VIN S, 20, 30 |
| TSF |
1978 | Truck | 454 | 250 | | LF-8 VIN S, 20, 30 |
| TSH |
1975 | Truck | 454 | 215 | 475 | LS-4 VIN Z, L, fwd |
| TSH |
1978 | Truck | 454 | 250 | | LF-8 VIN S, 20, 30 |
| TSJ |
1975 | Truck | 454 | 215 | 475 | LS-4 VIN Z, L, 20, 30 |
| TSJ |
1978 | Truck | 454 | 250 | | LF-8 VIN S, 20, 30 |
| TSK |
1975 | Truck | 454 | 215 | 475 | LS-4 VIN Z, L, 20, 30 |
| TSK |
1977 | Truck | 454 | 250 | | LF-8 VIN S, 20, 30 |
| TSL |
1975 | Truck | 454 | 215 | 475 | LS-4 VIN Z, L, 20, 30 |
| TSL |
1976 | Truck | 454 | 250 | | LF-8 VIN Y |
| TSL |
1977 | Truck | 454 | 250 | | LF-8 VIN S, 20, 30 |
| TSM |
1975 | Truck | 454 | 215 | 475 | LS-4 VIN Z, L, 20, 30 |
| TSM |
1977 | Truck | 454 | 250 | | LF-8 VIN S, 10 |
| TSR |
1977 | Truck | 454 | 250 | 400 | LF-8 VIN S, Motorhome, 30 |
| TSS |
1978 | Truck | 454 | 250 | | LF-8 VIN S, 20, 30 |
| TST |
1978 | Truck | 454 | 250 | | LF-8 VIN S, 20, 30 |
| TSU |
1978 | Truck | 454 | 250 | | LF-8 VIN S, 20, 30 |
| TTW |
1970 | Truck | 366 | 235 | | L-41 50 |
| TTX |
1970 | Truck | 366 | 235 | | L-41 50, 60 |
| TTZ |
1970 | Truck | 427 | 260 | | L-43 60 |
| TXA |
1989 | Truck | 454 | 230 | | L-19 TBI VIN N, 20, 30 |
| TXB |
1989 | Truck | 454 | 230 | | L-19 TBI VIN N, 20, 30 |
| TXF |
1989 | Truck | 454 | 230 | | L-19 TBI VIN N, 30 |
| TYX |
1970 | Truck | 366 | 235 | | L-41 50, 60 |
| TZB |
1985 | Truck | 454 | 240 | | LE-8 VIN W, 20, 30 |
| TZC |
1985 | Truck | 454 | 240 | | LE-8 VIN W, 20, 30 |
| TZD |
1985 | Truck | 454 | 240 | | LE-8 VIN W, 20, 30 |
| TZF |
1985 | Truck | 454 | 240 | | LE-8 VIN W, 20, 30 |
| TZG |
1985 | Truck | 454 | 240 | | LE-8 VIN W, 20, 30 |
| TZH |
1985 | Truck | 454 | 240 | | LE-8 VIN W, 20, 30 |
| TZJ |
1985 | Truck | 454 | 240 | | LE-8 VIN W, 20, 30 |
| TZK |
1985 | Marine | 454 | 240 | | LE-8 |
| TZK |
1985 | Truck | 454 | 240 | | LE-8 VIN W, 20, 30 |
| TZL |
1985 | Marine | 454 | 240 | | LE-8 |
| TZL |
1985 | Truck | 454 | 240 | | LE-8 VIN W, 20, 30 |
| TZM |
1985 | Truck | 454 | 240 | | LE-8 VIN W, 20, 30 |
| U |
1958 | Truck | 348 | 230 | | 576 50 |
| U |
1959 | Truck | 348 | 230 | | 576 50 |
| U2C |
1989 | Truck | 454 | 230 | | L-19 TBI VIN N, 30 |
| U2D |
1989 | Truck | 454 | 230 | | L-19 TBI VIN N, 30 |
| U2J |
1989 | Truck | 454 | 230 | | L-19 TBI VIN N, 20, 30 |
| U2K |
1989 | Truck | 454 | 230 | | L-19 TBI VIN N, 20, 30 |
| U2L |
1989 | Truck | 454 | 230 | | L-19 TBI VIN N, 20, 30 |
| U2W |
1989 | Truck | 454 | 230 | | L-19 TBI VIN N, 30 |
| U2Z |
1989 | Truck | 454 | 230 | | L-19 TBI VIN N, 30 |
| UA |
1958 | Truck | 348 | 230 | | 576 50 |
| UA |
1959 | Truck | 348 | 230 | | 576 50 |
| UBA |
1983 | Truck | 454 | 230 | | LE-8 VIN W, 20, 30 |
| UBB |
1983 | Truck | 454 | 230 | | LE-8 VIN W, 20, 30 |
| UBC |
1983 | Truck | 454 | 230 | | LE-8 VIN W, 20, 30 |
| UBD |
1983 | Truck | 454 | 230 | | LE-8 VIN W, 20, 30 |
| UBF |
1983 | Marine | 454 | 230 | | LE-8 |
| UBF |
1983 | Truck | 454 | 230 | | LE-8 VIN W, 20, 30 |
| UBH |
1983 | Truck | 454 | 230 | | LE-8 VIN W, 20, 30 |
| UCA |
1981 | Truck | 454 | 210 | 400 | LE-8 VIN W, 30, AR |
| UCB |
1981 | Truck | 454 | 210 | | LE-8 VIN W, 30, AR |
| UCD |
1981 | Marine | 454 | 210 | | LE-8 |
| UCD |
1981 | Truck | 454 | 210 | | LE-8 VIN W, 30, fwd |
| UCH |
1993 | Truck | 454 | 230 | | L-19 TBI VIN N |
| UCJ |
1993 | Truck | 454 | 230 | | L-19 TBI VIN N |
| UCK |
1993 | Truck | 454 | 230 | | L-19 TBI VIN N |
| UCL |
1993 | Truck | 454 | 230 | | L-19 TBI VIN N |
| UCN |
1993 | Truck | 454 | 230 | | L-19 TBI VIN N |
| UCS |
1993 | Truck | 454 | 230 | | L-19 TBI VIN N |
| UCT |
1993 | Truck | 454 | 230 | | L-19 TBI VIN N |
| UDL |
1993 | Truck | 454 | 230 | | L-19 TBI VIN N |
| UPH |
1993 | Truck | 454 | 230 | | L-19 TBI VIN N, fwd |
| UPJ |
1993 | Truck | 454 | 230 | | L-19 TBI VIN N |
| UPK |
1993 | Truck | 454 | 230 | | L-19 TBI VIN N, fwd |
| UXL |
1993 | Marine | 366 | 210 | | LS-0 TBI 4 bolt |
| UXL |
1994 | Marine | 366 | 210 | | LS-0 TBI 4 bolt |
| UYJ |
1993 | Marine | 366 | 210 | | LS-0 TBI 4 bolt |
| WZ |
1966 | Truck | 366 | 222 | | L-41 50 |
| XE |
1968 | Truck | 396 | 310 | | L-66 AR, 10, 20 |
| XF |
1968 | Truck | 396 | 310 | | L-66 20, 30 |
| XG |
1968 | Truck | 396 | 310 | 400 | L-66 AR, 10, 20 |
| XH |
1968 | Truck | 396 | 310 | 400 | L-66 20, 30 |
| XK |
1968 | Truck | 396 | 275 | | L-66 2bbl, 10,20 |
| XL |
1968 | Truck | 396 | 275 | 400 | L-66 2bbl, 10,20 |
| XM |
1968 | Truck | 396 | 275 | 400 | L-66 2bbl, 20 |
| XN |
1968 | Truck | 396 | 275 | | L-66 2bbl, 20, 30 |
| YA |
1966 | Truck | 366 | 222 | | L-41 50 |
| YA |
1969 | Truck | 366 | 235 | | L-41 50 |
| YB |
1966 | Truck | 366 | 222 | | L-41 50 |
| YS |
1969 | Truck | 366 | 235 | | L-41 60 |
| YC |
1969 | Truck | 366 | 235 | | L-41 60 |
| YD |
1969 | Truck | 366 | 235 | | L-41 Allison 60 |
| YG |
1966 | Truck | 366 | 222 | | L-41 Allison 50 |
| YH |
1969 | Truck | 366 | 235 | | L-41 Allison 60 |
| YI |
1969 | Truck | 366 | 235 | Mt | L-41 60 |
| YJ |
1969 | Truck | 366 | 235 | | L-41 60 |
| YK |
1969 | Truck | 366 | 235 | | L-41 60 |
| YM |
1965 | Truck | 348 | 220 | Mt | 50 |
| YO |
1965 | Truck | 348 | 220 | Mt | 50 |
| YP |
1965 | Truck | 348 | 220 | Mt | 50 |
| YP |
1969 | Truck | 396 | 310 | 400 | L-66 10, 20, 30 |
| YQ |
1965 | Truck | 348 | 220 | Mt | 50 |
| YQ |
1969 | Truck | 396 | 310 | 400 | L-66 20, 30 |
| YR |
1969 | Truck | 396 | 310 | | L-66 10, 20, 30 |
| YS |
1969 | Truck | 396 | 310 | | L-66 20, 30 |
| YT |
1966 | Truck | 366 | 222 | | L-41 50 |
| YT |
1969 | Truck | 427 | 260 | | L-43 60 |
| YU |
1969 | Truck | 427 | 260 | | L-43 60 |
| YV |
1969 | Truck | 427 | 260 | | L-43 60 |
| YW |
1969 | Truck | 427 | 260 | | L-43 60 |
| YX |
1966 | Truck | 366 | 222 | | L-41 50 |
| YZ |
1966 | Truck | 366 | 222 | | L-41 50 |
|