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Small Block Chevy Suffix Codes: TJT - TXB
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.
| RPO |
FY |
CID |
Appl |
VIN |
HP |
BBLS |
Body/Comments |
| TJT | 1972 | 307 | conv. cab, m/t | | 135 | 2 | K-20 |
| TJT | 1973 | 350 | van & bus | | 155 | 4 | C-30 & 3500 |
| TJT | 1979 | 350 | conv. cab, a/t | L LS9 | 165 | 4 | C-20 & 2500 |
| TJU | 1973 | 350 | van & bus | - | 155 | 4 | C-10 to 3500 |
| TJU | 1974 | 350 | van & bus | - | 160 | 4 | C-10 to 3500 |
| TJW | 1972 | 307 | fwrd cab | - | 135 | 2 | C-20 & 30 |
| TJW | 1973 | 350 | van & bus | - | 155 | 4 | C-10 to 3500 |
| TJW | 1974 | 350 | van & bus | - | 160 | 4 | C-10 to 3500 |
| TJW | 1980 | 350 | conv. cab, a/t | M LT9 | - | 4 | C-20 to 3500 |
| TJX | 1972 | 307 | fwrd cab | | 135 | 2 | C-20 & 30 |
| TJX | 1973 | 350 | conv.cab | | 155 | 4 | C-10 to 3500 |
| TJX | 1978 | 350 | conv.cab | L LS9 | 165 | 4 | C-10 & 1500 |
| TJY | 1973 | 350 | conv.cab | | 155 | 4 | C-10 to 2500 |
| TJY | 1974 | 350 | conv.cab | | 160 | 4 | C-10 to 2500 |
| TJY | 1978 | 350 | conv.cab | L LS9 | 165 | 4 | C-10 & 1500 |
| TJZ | 1973 | 350 | conv.cab | | 155 | 4 | C-10 to 2500 |
| TK | 1978 | 305 | LG3 | U | 145 | 2 | Firebird |
| TKA | 1976 | 350 | conv.cab | L LS9 | 165 | 4 | C-10 & 1500 |
| TKA | 1978 | 350 | conv. cab, m/t | L LS9 | 165 | 4 | C-10 & 1500 |
| TKB | 1976 | 350 | conv.cab | L LS9 | 165 | 4 | C-10 & 1500 |
| TKB | 1979 | 350 | conv. cab, m/t | L LS9 | 165 | 4 | C-30 & 3500 |
| TKC | 1976 | 350 | van & bus | L LS9 | 165 | 4 | C-10 & 1500 |
| TKC | 1979 | 350 | conv. cab, a/t | L LS9 | 165 | 4 | C-30 & 3500 |
| TKD | 1976 | 350 | van & bus | L LS9 | 165 | 4 | C-10 & 1500 |
| TKD | 1980 | 350 | conv. cab, m/t | L LS9 | 165 | 4 | C-10 & 1500 |
| TKE | 1975 | 350 | van & bus | L LS9 | 165 | 4 | C-10 & 1500 |
| TKF | 1975 | 350 | van & bus | V LF5 | 145 | 2 | C-10 & 1500 |
| TKF | 1978 | 350 | van & bus | L LS9 | 165 | 4 | C-10 & 1500 |
| TKG | 1975 | 350 | van & bus | V LF5 | 145 | 2 | C-10 & 1500 |
| TKH | 1976 | 350 | conv.cab | L LS9 | 165 | 4 | C-10 & 1500 |
| TKH | 1978 | 350 | van & bus | L LS9 | 165 | 4 | C-10 & 1500 |
| TKH | 1980 | 350 | con. cab, m/t, Cal | L LS9 | 165 | 4 | K-10 & 1500, C 2500 |
| TKK | 1978 | 350 | conv.cab | L LS9 | 165 | 4 | C-20 to 3500 |
| TKK | 1980 | 350 | conv. cab, a/t | L LS9 | 165 | 4 | K-10 & 1500 |
| TKL | 1978 | 350 | conv.cab | L LS9 | 165 | 4 | C-20 to 3500 |
| TKL | 1978 | 400 | conv.cab | R LF4 | - | 4 | K-10 & 1500 |
| TKL | 1980 | 350 | conv. cab, a/t | L LS9 | 165 | 4 | C-10 & 1500 |
| TKM | 1974 | 350 | fd cab, 11Klb axle | - | 160 | 4 | C-30 & 3500 |
| TKM | 1978 | 350 | van & bus | L LS9 | 165 | 4 | C-30 & 3500 |
| TKM | 1980 | 350 | conv. cab, a/t | L LS9 | 165 | 4 | C-10 & 1500 |
| TKN | 1975 | 350 | conv.cab | | 160 | 4 | C-10 & 1500 |
| TKR | 1974 | 350 | van & bus | | 160 | 4 | C-10 to 2500 |
| TKR | 1978 | 350 | van & bus | L LS9 | 165 | 4 | C-30 & 3500 |
| TKR | 1980 | 350 | conv. cab, a/t | L LS9 | 165 | 4 | C-20 & 2500 |
| TKS | 1974 | 350 | van & bus | | 160 | 4 | C-10 to 2500 |
| TKS | 1978 | 350 | fwrd cab | L LS9 | 165 | 4 | C-30 & 3500 |
| TKS | 1980 | 350 | conv. cab, a/t | L LS9 | 165 | 4 | K-20 & 2500 |
| TKT | 1974 | 350 | conv.cab | | 160 | 4 | C-10 & 1500 |
| TKT | 1978 | 350 | fwrd cab | L LS9 | 165 | 4 | C-20 to 3500 |
| TKT | 1980 | 350 | conv. cab, a/t | L LS9 | 165 | 4 | K-10 & 1500 |
| TKU | 1974 | 350 | conv.cab | | 160 | 4 | C-10 to 2500 |
| TKU | 1978 | 350 | fwrd cab | L LS9 | 165 | 4 | C-30 & 3500 |
| TKU | 1980 | 350 | van, bus, a/t, Cal | L LS9 | 165 | 4 | C-20 & 2500 |
| TKW | 1974 | 350 | van & bus | | 160 | 4 | C-10 to 2500 |
| TKW | 1978 | 350 | fwrd cab | L LS9 | 165 | 4 | C-20 to 3500 |
| TKX | 1974 | 350 | van & bus | | 160 | 4 | C-30 & 3500 |
| TKX | 1978 | 350 | fwrd cab | L LS9 | 165 | 4 | C-20 to 3500 |
| TKY | 1974 | 350 | conv.cab | | 160 | 4 | C-20 to 3500 |
| TKY | 1978 | 350 | fwrd cab | L LS9 | 165 | 4 | C-30 & 3500 |
| TKY | 1980 | 350 | conv. cab, m/t | L LS9 | 165 | 4 | C-10 to 2500 |
| TKZ | 1978 | 350 | fwrd cab | L LS9 | 165 | 4 | C-30 & 3500 |
| TKZ | 1980 | 350 | conv.cab | L LS9 | 165 | 4 | K-10 & 1500 |
| TL | 1957 | 265 | m/t | | 162 | 2 | truck/3100 |
| TLA | 1957 | 265 | H.D. m/t | | 162 | 2 | truck/3100 |
| TLA | 1978 | 400 | conv.cab | R LF4 | 175 | 4 | K-10 to 2500 |
| TLB | 1957 | 265 | m/t | | 162 | 2 | truck/3100 |
| TLB | 1972 | 307 | m/t | | 135 | 2 | C-10 |
| TLB | 1978 | 400 | conv.cab | R LF4 | 175 | 4 | K-10 to 2500 |
| TLB | 1980 | 400 | van & bus, a/t | R LF4 | 175 | 4 | C-20 & 2500 |
| TLC | 1978 | 400 | conv.cab | R LF4 | 175 | 4 | K-30 & 3500 |
| TLC | 1980 | 400 | van & bus, a/t | R LF4 | 175 | 4 | C-20 & 2500 |
| TLD | 1972 | 350 | fwrd cab | | 155 | 4 | C-30 |
| TLD | 1975 | 400 | van & bus | U LF4 | 175 | 4 | C-30 & 3500 |
| TLD | 1977 | 400 | van & bus | R LF4 | 175 | 4 | C-30 & 3500 |
| TLD | 1979 | 400 | conv. cab, a/t | R LF4 | 175 | 4 | K-10 to 2500 |
| TLF | 1978 | 400 | van & bus | R LF4 | 175 | 4 | C-30 & 3500 |
| TLH | 1975 | 400 | van & bus | U LF4 | 175 | 4 | C-30 & 3500 |
| TLH | 1977 | 400 | van & bus | R LF4 | 175 | 4 | C-30 & 3500 |
| TLH | 1979 | 400 | conv. cab, a/t | R LF4 | 175 | 4 | K-10 to 2500 |
| TLJ | 1978 | 400 | conv.cab | R LF4 | 175 | 4 | K-20 to 3500 |
| TLK | 1980 | 400 | van, bus, a/t, Cal | R LF4 | 170 | 4 | C-20 & 2500 |
| TLL | 1976 | 400 | conv.cab | U LF4 | 175 | 4 | K-20 & 2500 |
| TLL | 1977 | 400 | conv.cab | R LF4 | 175 | 4 | K-20 to 3500 |
| TLL | 1979 | 400 | van & bus, a/t | R LF4 | 175 | 4 | C-20 to 3500 |
| TLM | 1976 | 400 | conv.cab | U LF4 | 175 | 4 | K-20 & 2500 |
| TLM | 1977 | 400 | conv.cab | R LF4 | 175 | 4 | K-20 to 3500 |
| TLM | 1979 | 400 | van & bus, a/t | R LF4 | 175 | 4 | C-20 to 3500 |
| TLR | 1975 | 400 | conv.cab | U LF4 | 175 | 4 | K-10 to 2500 |
| TLR | 1977 | 400 | conv.cab | R LF4 | 175 | 4 | K-10 to 2500 |
| TLR | 1979 | 400 | con. cab, a/t, Cal | R LF4 | 170 | 4 | K-10 to 2500 |
| TLS | 1975 | 400 | conv.cab | U LF4 | 175 | 4 | K-10 to 2500 |
| TLS | 1977 | 400 | conv.cab | R LF4 | 175 | 4 | K-10 to 2500 |
| TLS | 1979 | 400 | con. cab, a/t, Cal | R LF4 | 170 | 4 | K-10 to 2500 |
| TLT | 1975 | 400 | van & bus | U LF4 | 175 | 4 | C-20 to 3500 |
| TLT | 1977 | 400 | van & bus | R LF4 | 175 | 4 | C-20 to 3500 |
| TLT | 1979 | 400 | van, bus, a/t, Cal | R LF4 | 170 | 4 | C-20 to 3500 |
| TLU | 1975 | 400 | van & bus | U LF4 | 175 | 4 | C-20 to 3500 |
| TLU | 1977 | 400 | van & bus | R LF4 | 175 | 4 | C-20 to 3500 |
| TLU | 1979 | 400 | conv. cab, a/t | R LF4 | 175 | 4 | K-30 & 3500 |
| TLW | 1972 | 350 | fwrd cab | | 175 | 4 | C-20 & 30 |
| TLW | 1978 | 400 | van & bus | R LF4 | 175 | 4 | C-20 to 3500 |
| TLW | 1980 | 400 | van, bus, a/t, Cal | R LF4 | 170 | 4 | C-20 & 2500 |
| TLX | 1972 | 350 | fwrd cab | | 175 | 4 | C-20 & 30 |
| TLX | 1978 | 400 | van & bus | R LF4 | 175 | 4 | C-20 to 3500 |
| TLX | 1980 | 400 | conv. cab, a/t | X LE4 | 175 | 4 | K-20 to 3500 |
| TLY | 1978 | 400 | van & bus | R LF4 | 175 | 4 | C-30 & 3500 |
| TLY | 1980 | 400 | van, bus, a/t, Cal | X LE4 | 175 | 4 | C-30 & 3500 |
| TLZ | 1978 | 400 | van & bus | R LF4 | 175 | 4 | C-20 to 3500 |
| TM | 1956 | 265 | m/t | | 155 | 2 | truck/3100 |
| TM | 1978 | 305 | LG3 | U | 145 | 2 | LeMans |
| TMA | 1956 | 265 | m/t | | 155 | 2 | truck/3600 |
| TMA | 1974 | 350 | fwrd cab | | 160 | 4 | C-20 & 2500 |
| TMA | 1980 | 350 | con. cab, m/t, Cal | M LT9 | - | 4 | C-20 to 3500 |
| TMB | 1970 | 350 | tilt cab | - | 215 | 2 | C-50 |
| TMB | 1970 | 350 | tilt cab | - | 255 | 4 | C 5500 |
| TMB | 1971 | 307 | van & bus | - | 200 | 2 | C-10, 20 & 30 |
| TMB | 1974 | 350 | fwrd cab | - | 160 | 4 | C-30 & 3500 |
| TMC | 1974 | 350 | fd cab: mtr home | - | 160 | 4 | C-30 & 3500 |
| TMC | 1979 | 350 | con. cab, hi alt, a/t | L LS9 | 175 | 4 | C-10 & 1500 |
| TMD | 1974 | 350 | fwrd cab | | 160 | 4 | C-20 to 3500 |
| TMD | 1977 | 350 | con/school bus | | 160 | 4 | C-60 & 6000 |
| TMD | 1979 | 350 | van,bus, hi alt, a/t | L LS9 | 175 | 4 | C-10 & 1500 |
| TME | 1975 | 350 | conv.cab | | 160 | 4 | C-10 & 1500 |
| TMF | 1975 | 350 | van & bus | | 160 | 4 | C-10 & 1500 |
| TMF | 1979 | 350 | conv. cab, m/t | L LS9 | 175 | 4 | C-10 & 1500 |
| TMG | 1975 | 350 | van & bus | | 160 | 4 | C-10 & 1500 |
| TMH | 1979 | 350 | conv. cab, m/t | L LS9 | 175 | 4 | C-10 & 1500 |
| TMJ | 1970 | 350 | con, fd, van, bus | | 215 | 2 | C-10, 20, 30 |
| TMJ | 1970 | 350 | turhydro | | 255 | 4 | C-10 to 30 |
| TMJ | 1980 | 350 | van, bus, m/t, Cal | M LT9 | 170 | 4 | C-30 & 3500 |
| TMK | 1974 | 350 | van & bus | | 145 | 2 | C-10 & 1500 |
| TMK | 1980 | 350 | van, bus, m/t, Cal | M LT9 | 170 | 4 | C-30 & 3500 |
| TML | 1974 | 350 | van & bus | | 145 | 2 | C-10 & 1500 |
| TML | 1980 | 350 | van, bus, m/t, Cal | M LT9 | 170 | 4 | C-30 & 3500 |
| TMM | 1974 | 350 | conv.cab | | 145 | 2 | C-10 & 1500 |
| TMM | 1980 | 350 | conv. cab, a/t, Cal | M LT9 | 170 | 4 | C-20 to 3500 |
| TMR | 1980 | 350 | van, bus, a/t, Cal | M LT9 | 170 | 4 | C-30 & 3500 |
| TMS | 1980 | 350 | fwrd cab, a/t, Cal | M LT9 | 170 | 4 | C-30 & 3500 |
| TMT | 1974 | 350 | conv.cab | | 160 | 2 | C-50 & 5000 |
| TMT | 1980 | 350 | fwrd cab, a/t, Cal | M LT9 | 170 | 4 | C-30 & 3500 |
| TMU | 1974 | 350 | con, /school bus | | 160 | 2 | C-60 & 6000 |
| TMU | 1980 | 350 | conv. cab, m/t | L LS9 | 175 | 4 | C-20 & 2500 |
| TMW | 1974 | 350 | con, /school bus | - | 160 | 2 | C-50, 60, 5000, 6000 |
| TMX | 1974 | 350 | con, /school bus | - | 160 | 2 | C-60 & 6000 |
| TMY | 1974 | 350 | con, /school bus | - | 160 | 2 | C-60 & 6000 |
| TMZ | 1974 | 350 | con, /school bus | - | 160 | 2 | C-60 & 6000 |
| TNS | 1970 | 307 | fwrd cab | - | 200 | 2 | C 2500 & 3500 |
| TNT | 1970 | 350 | con/fd cabs, glide | - | 255 | 4 | C-10 to 2500 |
| TPB | 1971 | 307 | van & bus | - | 200 | 2 | C 1500 |
| TPC | 1971 | 307 | van & bus | - | 200 | 2 | C 1500 |
| TR | 1978 | 305 | LG3 | U | 145 | 2 | LeMans |
| TRA | 1972 | 307 | conv. cab, m/t | - | 135 | 2 | C-10 & 20 |
| TRC | 1973 | 350 | fwrd cab | - | 155 | 4 | C-30 & 3500 |
| TRD | 1972 | 350 | van & bus | - | 175 | 4 | C-30 & 3500 |
| TRG | 1972 | 350 | van & bus | - | 175 | 4 | C-30 |
| TRH | 1972 | 350 | conv. cab, m/t | - | 175 | 4 | C-20 & 30 |
| TRJ | 1972 | 350 | conv. cab, a/t | - | 175 | 4 | C-20 & 30 |
| TRK | 1972 | 350 | conv. cab, m/t | - | 175 | 4 | K-20 |
| TRK | 1973 | 350 | conv. & fwrd cabs | - | 155 | 4 | C-20 to 3500 |
| TRL | 1972 | 350 | conv. cab, a/t | - | 175 | 4 | K-20 |
| TRM | 1974 | 350 | conv.cab | - | 145 | 2 | C-10 & 1500 |
| TRR | 1973 | 350 | fwrd cab | - | 155 | 4 | C-30 & 3500 |
| TRR | 1979 | 350 | con. cab, hi alt, a/t | L LS9 | 160 | 4 | C-10 to 2500 |
| TRS | 1972 | 350 | van & bus | | 175 | 4 | C 3500 |
| TRS | 1979 | 350 | con. cab, hi alt, a/t | L LS9 | 160 | 4 | C-20 & 2500 |
| TRZ | 1979 | 350 | van, bus, hi alt, m/t | L LS9 | 160 | 4 | C-20 & 2500 |
| TS | 1978 | 305 | LG3 | U | 145 | 2 | Grand Prix |
| TSC | 1982 | 350 | con, van, bus cabs | L LS9 | 160 | 4 | C-10 to 3500 |
| TSD | 1982 | 350 | con, van, bus cabs | L LS9 | 160 | 4 | C-10 to 3500 |
| TSF | 1982 | 350 | con, van, bus cabs | L LS9 | 160 | 4 | C-10 to 3500 |
| TSH | 1982 | 350 | con, van, bus cabs | L LS9 | 160 | 4 | C-10 to 3500 |
| TSJ | 1972 | 307 | tur hydro | | 135 | 2 | K-20 |
| TSJ | 1982 | 350 | con, van, bus cabs | L LS9 | 160 | 4 | C-10 to 3500 |
| TSK | 1982 | 350 | con, van, bus cabs | L LS9 | 160 | 4 | C-10 to 3500 |
| TSP | 1972 | 307 | tur hydro | | 135 | 2 | C-10 & 20 |
| TSR | 1972 | 307 | M/t | | 135 | 2 | K-10 & 20 |
| TSS | 1972 | 307 | M/t | | 135 | 2 | C-10&20 |
| TT | 1978 | 305 | LG3 | U | 145 | 2 | Grand Prix |
| TTA | 1982 | 350 | con, fd, van, bus | M LT9 | 160 | 4 | C-20 to 3500 |
| TTB | 1980 | 400 | con. cab, a/t, Cal | X LT4 | 175 | 4 | C-20 to 3500 |
| TTB | 1982 | 350 | con, fd, van, bus | M LT9 | 160 | 4 | C-20 to 3500 |
| TTC | 1980 | 400 | con. cab, a/t, Cal | X LT4 | 175 | 4 | C-30 & 3500 |
| TTC | 1982 | 350 | con, fd, van, bus | M LT9 | 160 | 4 | C-20 to 3500 |
| TTD | 1982 | 350 | con, fd, van, bus | M LT9 | 160 | 4 | C-20 to 3500 |
| TTJ | 1979 | 400 | van & bus, a/t | X LT4 | 175 | 4 | C-30 & 3500 |
| TTM | 1979 | 400 | van, bus, a/t, Cal | X LT4 | 175 | 4 | C-20 to 3500 |
| TTO | 1970 | 350 | conv.cab | - | 215 | 2 | C-40 |
| TTO | 1970 | 350 | conv.cab | - | 255 | 4 | C 4500 |
| TTP | 1970 | 350 | conv.cab | - | 215 | 2 | C-50 |
| TTP | 1970 | 350 | con/school bus | - | 255 | 4 | C 5500 |
| TTQ | 1970 | 350 | conv.cab | - | 215 | 2 | C-50 |
| TTQ | 1970 | 350 | con/school bus | - | 255 | 4 | C 5500 |
| TTR | 1970 | 350 | conv.cab | - | 215 | 2 | C-50 |
| TTR | 1970 | 350 | conv.cab | - | 255 | 4 | C 5500 |
| TTR | 1979 | 400 | conv.cab | R LF4 | 185 | 4 | K-10 to 2500 |
| TTS | 1970 | 350 | conv.cab | - | 215 | 2 | C-50 |
| TTS | 1970 | 350 | conv.cab | - | 255 | 4 | C 5500 |
| TTT | 1970 | 350 | conv.cab | - | 215 | 2 | C-40 |
| TTU | 1970 | 350 | conv.cab | - | 215 | 2 | C-50 |
| TTV | 1970 | 350 | conv.cab | - | 215 | 2 | C-50 |
| TU | 1978 | 305 | LG3 | U | 145 | 2 | Grand Prix |
| TW | 1978 | 305 | LG3 | U | 145 | 2 | Grand Prix |
| TWA | 1974 | 350 | con/school bus | - | 160 | 2 | C-60 & 6000 |
| TWB | 1974 | 350 | tilt cab | - | 160 | 2 | C-60 & 6000 |
| TWC | 1974 | 350 | tilt cab | - | 160 | 2 | C-60 & 6000 |
| TWD | 1974 | 350 | con. cab, LPgas eng | - | 160 | 2 | C-60 & 6000 |
| TWD | 1977 | 350 | conv.cab | L LS9 | 165 | 4 | C-10 & 1500 |
| TWF | 1976 | 350 | conv.cab | L LS9 | 165 | 4 | C-10 & 1500 |
| TWJ | 1976 | 350 | conv.cab | L LS9 | 165 | 4 | C-10 & 1500 |
| TWJ | 1978 | 350 | conv.cab | L LS9 | 165 | 4 | C-10 & 1500 |
| TWK | 1976 | 350 | van & bus | L LS9 | 165 | 4 | C-10 & 1500 |
| TWK | 1978 | 350 | conv.cab | L LS9 | 165 | 4 | C-10 & 1500 |
| TWT | 1977 | 350 | fwrd cab | L LS9 | 165 | 4 | C-30 & 3500 |
| TWU | 1977 | 350 | fwrd cab | L LS9 | 165 | 4 | C-30 & 3500 |
| TWV | 1977 | 350 | fwrd cab | L LS9 | 165 | 4 | C-30 & 3500 |
| TWW | 1978 | 350 | fwrd cab | L LS9 | 165 | 4 | C-30 & 3500 |
| TWX | 1978 | 350 | fwrd cab | L LS9 | 165 | 4 | C-30 & 3500 |
| TWY | 1978 | 350 | conv.cab | L LS9 | 165 | 4 | C-20 & 2500 |
| TWZ | 1978 | 350 | conv.cab | L LS9 | 165 | 4 | K-10 to 2500 |
| TX | 1978 | 305 | LG3 | U | 145 | 2 | Grand Prix |
| TXA | 1975 | 350 | conv.cab | L LS9 | 165 | 4 | C-20 to 3500 |
| TXB | 1975 | 350 | conv.cab | L LS9 | 165 | 4 | C-20 to 3500 |
|