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ENGINE CODES

 
 
CHEVELLE * MONTE CARLO
  
1970                             Code Prefix

1970                               Code Prefix
6-250 P/G, Taxi& Police CCM 8-396 HDC, 375hp CKQ
6-250 T/H, Taxi& Police CCK 8-396 HDC, 375hp CKU
6-250 M/T, Taxi& Police CCL 8-396 M/T, 375hp CKT
8-307 Std. tran CNC 8-400 T/H, 325hp CKN
8-307 4 sp. trans CND 8-400 M/T, 330hp CKR
8-307 P/G CNE 8-400 HDC, 330hp CKS
8-307 T/H CNF 8-400 M/T, 265hp CZX
8-350 Std. tran, 250hp CNI 8-400 T/H, 265hp CRH
8-350 Std. tran, 300hp CNJ 8-454 M/T, 390hp CRN
8-350 P/G, 300hp CNK 8-454 T/H, 390hp CRQ
8-350 T/H, 300hp CRE 8-454 T/H, 450hp CRR
8-350 P/G, 250hp CNM 8-454 T/H, 450hp ALUM HEADS CRS
8-396 T/H, 350hp CTW 8-454 Std. tran, 390hp CRT
8-396 M/T, 350hp CTX 8-454 HDC, 390hp CRU
8-396 T/H, 375hp CTY 8-454 M/T, 450hp CRV
8-396 HDC, 350hp CTZ 8-454 M/T, 450hp ALUM HEADS CRW
8-396 M/T, 375hp CKD 8-454 HDC, 450hp CRX
8-396 T/H, 375hp CKP 8-454 HDC, 450hp ALUM HEADS CRY
       
        
1971
6-250 Std. tran CAA
8-307 Std. tran CCA
8-350 Std. tran, 250hp CGA
8-350 P/G, 250hp CGB
8-350 Std. tran, 300hp CGK
8-350 T/H, 300hp CGL
8-400 Std. tran, 330hp CLA
8-400 T/H 300hp CLB
   
    
1971
8-400 M/T, 265hp CLJ
8-400 T/H, 265hp CLK
8-400 M/T, 300hp CLL
8-400 T/H, 300hp CLP
8-454 Std. tran, 390hp CPA
8-454 Std. tran, 390hp CPG
8-454 Std. tran, 460hp CPP
8-454 T/H, 460hp CPR 
1972
6-250 Std. tran, E.E.C CBA
6-250 Std. tran, E.E.C, Taxi CBD
6-250 Std. tran CBG
6-250 P/G CBJ
6-250 P/G, Taxi CBK
6-250 P/G, E.E.C CSD
8-307 E.E.C, M/T CAY
8-307 P/G, E.E.C CAZ
8-307M/T CKG
8-307 P/G CKH
8-307 E.E.C, T/H CMA
8-307 T/H CTK
8-350 E.E.C, Police, T/H CAR
8-350 Std. tran CDA
8-350 P/G CDB
8-350 T/H CDD
8-350 M/T CDG
8-350 M/T CKA
8-350 P/G CKB
8-350 T/H CKD
  
 
 
1972
8-350 M/T CKK
8-350 T/H, E.E.C CMD
8-350 Police, T/H CSH
8-350 T/H CTL
8-400 M/T CLA
8-400 T/H CLB
8-400 M/T CLJ
8-400 T/H CLK
8-400 4 sp. tran CLL
8-400 M/T Police CLR
8-400 M/T CLS
8-400 A.I.R, M/T, Taxi& Police CTA
8-400 T/H, A.I.R CTB
8-400 HDC, A.I.R CTH
8-400 A.I.R, T/H, Taxi& Police CTJ
8-454 M/T CPA
8-454 T/H CPD
8-454 T/H, A.I.R CRW
8-454 T/H, A.I.R CRX
   
  
1973
6-250 T/H CCA
6-250 T/H, E.E.C CCB
6-250 M/T CCC
6-250 M/T, E.E.C CCD
8-307 T/H CHA
8-307 M/T CHB
8-307 E.E.C, T/H CHC
8-350 M/T 145 hp CKA
8-350 T/H, 145 hp CKL
8-350 M/T 145 hp CKB
   
    
1974
6-250 M/T CCR
6-250 T/H, E.E.C CCW
6-250 T/H CCX
6-250 CCK
8-350 M/T CMC
8-350 T/H CMA
8-350 4 bar carb, M/T CKH
   
    
1975
6-250 CJL
6-250 CLM
6-250 CJR
6-250 CJT
6-250 CJU
6-250 CJF
6-250 CJZ
8-350 CMF
8-350 CMH
8-350 CMJ
    
Location:

4 & 6 CYL- Righthand side of block, rear of distributor


8 CYL - Front pad on righthand side of block
 
1973
8-350 M/T, E.E.C, 145 hp CKC
8-350 T/H, E.E.C 145 hp CKK
8-350 M/T, E.E.C, 175 hp CKH
8-350 T/H, E.E.C, 175 hp CKD
8-350 T/H, 175 hp CKJ
8-454 E.E.C, M/T CWC
8-454 E.E.C, T/H CWD
8-454 M/T CWA
8-454 T/H CWB
  
1974
8-350 4 bar carb, T/H CKD
8-400 T/H, E.E.C 180 hp CTC
8-400 T/H, 150hp CTA
8-454 M/T CWA
8-454 T/H CWX
8-454 T/H, E.E.C CWD
   
   
  
1975
8-350 CMU
8-350 CRT
8-350 CRU
8-350 CRX
8-400 CSM
8-400 CTL
8-400 CTU
8-400 CTX
8-454 CXW
   
  
Configuration:

A/C - Air conditioning                      O/D - Overdrive
A/H - Aluminum heads                    P/G - Powerglide
A/S - Air spension                            P/S - Power steering
A.I.R. - Air Injection Reactor         P/V - Positive crankcase 
A/T - Auto trans                                          ventilation
E.E.C - Exhaust emission control    SHPE - Special high perf. eng
F/I -  fuel injection                          S.S. - Super Sport
H/D -  Heavy duty                            T/D - Torque drive
HDC - Heavy duty clutch                 T/H - Turbo hydramatic
HPE - High performance engine    T/I - Transistor ignition
H/L - Hydraulic lifters
M/T - Manual trans
 
  1962-69

The engine codes decoder reveals the engine displacement, plate location and configuration.