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ENGINE CODES
 
CHEVROLET
  
1970                        Code Prefix

1970                       Code Prefix
6 Cyl., P/G, Taxi& Police CCM 8-350 Police, P/G, 300hp CNS
6 Cyl.,3 sp. tran CCG 8-350 Police, T/H, 300hp CNT
6 Cyl.,3 sp. tran CCH 8-350 P/G, 250hp CNU
6 Cyl.,T/H, Taxi& Police CCK 8-350 T/H, 250hp CNV
6 Cyl.,3 sp. tran CCZ 8-350 Taxi& Police, P/G 250hp CNW
6 Cyl.,3 sp. tran, Taxi& Police CCL 8-350 Taxi& Police, T/H 250hp CNX
6 Cyl. Std trans CRF 8-400 Std. tran, 265hp CGR
6 Cyl. Std trans CRG 8-454 Std. tran, 345hp CGV
8-350 Std. tran, 250hp CND 8-454 Std. tran, Police, 345hp CGS
8-350 Std. tran, Taxi& Police, 250hp CNP 8-454 Std. tran, Police, 390hp CGT
8-350 Std. tran, 300hp CNQ 8-454 Std. tran, 390hp CGU
8-350 T/H, 300hp CNR    
       
      
1971
6-250 Std. tran CAA
6-250 P/G, T/D CAB
6-250 Std. tran, Taxi & Police CAC
6-250 P/G, Taxi & Police CAD
8-350 Std. tran, 250hp CGA
8-350 P/G, 250hp CGB
8-350 Std. tran, 250hp CGC
   
  
1971
8-350 Taxi& Police, T/H 250hp CGJ
8-350 Police, M/T, 300hp CJB
8-400 T/H, 265hp CLK
8-400 T/H, 300hp CLP
8-454 Std. tran, 390hp CPD
8-454 Std. tran, Police, 390hp CPG
    
1972
6-250 Std. tran, Taxi & Police CBH
6-250 P/G CBJ
6-250 P/G, Taxi & Police CBK
6-250 Std. tran CNJ
6-250 P/G, A.I.R CDL
8-350 Taxi& Police, T/H CAR
8-350 E.E.C, T/H CDB
8-350 T/H CKB
8-350 Taxi& Police, T/H CSH
8-350 Std. tran CSJ
8-400 T/H 
CAT
 
1972
8-400 T/H, Police CDL
8-400 E.E.C, T/H, Police CDM
8-400 T/H CKP
8-400 Std. tran CLB
8-400 M/T, Police CLR
8-454 T/H, A.I.R CRW
8-454 T/H, A.I.R, Police CRY
8-454 T/H CPD
8-454 T/H, Police CPG
 
  
1973
6-250 Std. tran CCL
6-250 Std. tran, E.E.C CCM
8-350 T/H, 145 hp CKL
8-350 T/H, Taxi& Police 145 hp CKS
8-350 T/H, E.E.C, 145 hp CKK
8-350 T/H, E.E.C, 145 hp CLT
8-350 T/H 145 hp CLU
8-350 T/H, E.E.C, Police 145 hp CLW
8-350 T/H, Police 145 hp CLX
8-350 T/H, E.E.C, Police 175 hp CKR
8-350 T/H, E.E.C, 175 hp CKD
8-350 T/H, E.E.C, 175 hp CKJ
   
    
1974
8-350 4 bar carb, E.E.C, Taxi-Police CMK
8-350 E.E.C, Taxi & Police CMA
8-350 Taxi & Police CMD
8-350 4 bar carb, E.E.C,Police CMH
8-350 4 bar carb,Police CMJ
8-350 4 bar carb, E.E.C CKD
8-400 4 bar carb, E.E.C 180 hp CTC
8-400 4 bar carb 180 hp CTD
   
    
1975
8-350 CMJ
8-350 CRU
8-350 CRW
8-350 CRY
8-400 CSA
8-400 CTL
8-400 CTM
   
   
   
   
    
Location:

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


8 CYL - Front pad on righthand side of block
 
1973
8-400 T/H CSA
8-400 T/H, Police CSB
8-400 E.E.C, T/H, Police CSC
8-400 E.E.C, T/H CSD
8-400 T/H CSK
8-400 E.E.C, T/H, Police CSL
8-400 T/H, Police CSM
8-454 T/H CWD
8-454 E.E.C, T/H, Police CWJ
8-454 T/H, Police CWK
8-454 T/H CWL
  
1974
8-400 4 bar carb, E.E.C 180 hp Police CTK
8-400 4 bar carb, 180 hp Police CTJ
8-400 150 hp CTA
8-400 150 hp Police CTB
8-454 Police CWU
8-454 E.E.C, Police CWW
8-454 E.E.C CWY
8-454 CXA
 
  
1975
8-400 CTU
8-400 CTW
8-400 CTY
8-400 CTZ
   
  
Configuration:

A/C - Air conditioning                      O/D - Overdrive
A/H - Aluminum heads                    P/G - Powerglide
A/S - Air suspension                            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.