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ENGINE CODES

 
CHEVROLET
 
1962                        Code Prefix
1962-63                       Code Prefix
6 Cyl., 3 sp. trans, A/C, HDC AJ 8-283 O/D CD
6 Cyl., 3 sp. trans, A/C AK 8-283 A/C CL
6 Cly., HDC, P/S AM 8-283 A/C, P/G DK
6 Cly., P/S, A/C AZ 8-409 4 Bar carb QA
6 Cly., P/G, P/S BE 8-409 2 CARBS QB
6 Cly., P/G, A/C BG    
6 Cly., A/C, P/G, P/S BH    
       
     
1962-64
6 Cyl., 3 sp. trans A
6 Cly., HDC AE
6 Cyl., 3 sp. trans, A/C AF
6 Cyl., A/C, HDC AG
6 Cly., P/G B
8-283 3 sp. tran C
8-283 P/G D
   

 
   
   
1963-64
 
8-283 Police CB
1963
8-327 Std. tran R
8-327 Std. tran, A/C RA
8-327 Std. tran, HPE RB
8-327 Std. tran, HPE, A/C RK
8-327 P/G S
8-327 A/C, P/G SA
8-327 HPE, PG SB
8-327 A/C. HPE, P/G SG
8-409 M/T QC
8-409 P/G QG
8-409 SHPE QM
   
1964  
6 Cly., P/G, A/C BQ
   
1965
8-327 P/G, HPE HD
8-396 M/T, T/I IC
8-396 SHPE, M/T IE
8-396 P/G, T/I II
8-396 T/H, T/I IW
8-409 M/T, HPE JA
8-409 M/T JB
8-409 T/I JC
8-409 T/I, HPE JD
8-409 P/G JE
8-409 P/G, T/I JF
 
 
1965-68
8-327 3 sp. trans HA
8-327 P/G HC
8-396 M/T IA
8-396 P/G IG
8-396 T/H IV
   
1965-66
8-327 3 sp, HPE
HB
 
 
1965-67
6 Cyl., 3 sp. trans FA
6 Cly., HDC FE
6 Cly., HDC, A/C FF
6 Cly. TAXI FK
6 Cyl., 3 sp. trans, A/C FL
6 Cyl., P/G FM
6 Cyl., TAXI FP
6 Cyl., P/G, A/C FR
8-283 3 sp. trans GA
8-283 4 sp. trans GC
8-283 P/G GF
8-396 A.I.R IB
 
 
 
1966
6 Cly. A.I.R, HDC FW
6 Cly. A.I.R, HDC, A/C AN
   

1966-68
8-327 SHPE ID
8-427 M/T IH
   
 
1967
8-283 HDC GU
8-327 A.I.R HB
8-327 4 sp. KE
8-396 A.I.R, T/H IN
8-427 A.I.R, T/H IO
   
   
1969
6-250 Std. tran BA
6-250 Std. tran, A/C BG
8-327 Std. tran FA
8-327 P/G FB
8-327 T/H FC
8-327 T/H FH
8-350 Std. tran HG
8-350 T/H HH
8-350 2 Bar carb HI
8-350 2 Bar carb, T/H HJ
8-350 P/G HK
8-350 2 Bar carb, P/G HL
8-350 2 Bar carb, T/H HM
8-350 T/H HN
8-396 2 Bar carb JN
8-396 2 Bar carb, T/H JQ
8-427 HPE LA
8-427 4 Bar carb LB
8-427 HPE, T/H LC
8-427 SHPE LD
8-427 4 Bar carb, T/H LE
8-427 HPE LH
8-427 T/H LI
8-427 SHPE, T/H LS
   
   
Location:

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


8 CYL - Front pad on righthand side of block
1966-67
6 Cly. A.I.R FV
6 Cly. A.I.R, A/C FY
6 Cly. A.I.R, TAXI FZ
6 Cly. A.I.R, P/G GP
6 Cly. A.I.R, P/G, A/C GQ
6 Cly. A.I.R, P/G,TAXI GR
8-283 A.I.R GK
8-283 4 sp., A.I.R GS
8-283 A.I.R, P/G GT
8-327 A.I.R, P/G HF
8-396 A.I.R, P/G IC
8-427 A.I.R II
8-427 T/H IJ
 
 
1968
6-250 Std. tran CA
6-250 A/C CC
6-250 HDC CJ
6-250 A/C, HDC CK
6-250 Std. tran CM
6-250 A/C CN
6-250 P/G CQ
6-250 A/C, P/G CR
8-307 Std. tran DO
8-307 4 sp. tran S.S DP
8-307 HDC DQ
8-307 P/G DR
8-307 T/H DS
8-327 HDC HB
8-327 T/H HF
8-327 4 Bar carb HI
8-327 4 Bar carb, P/G HJ
8-327 4 Bar carb, HDC HL
8-327 4 Bar carb, T/H HM
8-427 T/H IJ
   
   
   
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
  1970-75

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