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ENGINE CODES

 

CORVETTE

1969                       Code Prefix
8-350 HPE HW
8-350 HPE, A/C HX
8-350 M/T HY
8-350 T/H HZ
8-427 HPE, T/H LL
8-427 HPE LM
8-427 HPE, T/H, 3 Carbs LN
8-427 HD LO
8-427 A/H LP
8-427 HPE, 3 Carbs LQ
8-427 SHPE, 3 Carbs LR
8-427 SHPE, HDC, 3 Carbs LT
8-427 A/H, HDC LU
8-427 T/H LV
8-427 A/H, T/H LW
8-427 SHPE, T/H, 3 Carbs LX
 
1970                        Code Prefix
8-454 HPE, T/H CGW
8-454 HPE, T/I CRI
8-350 M/T CTL
8-350 T/H CTM
8-350 HPE CTN
8-350 HPE, A/C CTO
8-350 HPE, T/I CTP
8-350 HPE, A/C,T/I CTQ
8-350 SHPE CTR
8-350 SHPE, T/I CTU
8-350 SHPE, T/I, 4 Speed CTV
8-454 HD CZL
8-454 HD, T/H CZN
8-454 HPE CZU
1971
8-350 T/H, 270 HP CGT
8-350 M/T, 330 HP CGY
8-350 M/T, 330 HP CGZ
8-350 M/T, 270 HP CJK
8-350 M/T, 270 HP CJL
8-454 M/T, 365 HP CPH
8-454 T/H, 365HP CPJ
8-454 M/T, 425 HP CPW
8-454 T/H, 425 HP CPX
   
   
   
 
 
1973
8-350 M/T, 175 HP CKZ
8-350 T/H CLA
8-350 M/T, 250 HP CLR
8-350 M/T, E.E.C, 175 HP CLB
8-350 T/H, E.E.C, 175 HP CLC
8-350 M/T, E.E.C, 250 HP CLS
8-350 T/H, 250 HP CLD
8-350 T/H, E.E.C, 250 HP CLH
8-454 T/H E.EC CWS
8-454 M/T, E.E.C CWT
8-454 M/T CWM
8-454 T/H CWR
 
 
1975
8-350 CHA
8-350 CHB
8-350 CHC
8-350 CHR
8-350 CHU
8-350 CHZ
   

 

1972
8-350 4 Speed, 200 HP CKW
8-350 4 Speed, E.E.C.,200 HP CDH
8-350 T/H 400, 200 HP CKX
8-350 T/H 400, E.E.C.,200 HP CDJ
8-350 4 Speed, 255 HP CKY
8-350 H.D, 4 Speed, 255 HP CKZ
8-350 AIR, 4 Speed, 255 HP CRT
8-350 T/H 400, AIR, 255 HP CRS
8-454 4 Speed CPH
8-454 T/H 400 CPJ
8-454 AIR CSR
8-454 AIR CSS
 
 
1974
8-350 M/T CKZ
8-350 M/T, E.E.C CLB
8-350 M/T, 245 HP CLR
8-350 T/H CLA
8-350 T/H, E.E.C CLC
8-350 T/H, 245 HP CLD
8-454 M/T CWM
8-454 T/H CWR
8-454 T/H E.EC CWS
 
 
Configuration:

A/C: Air conditioned           AIR: Air injection reactor

A/T: Automatic trans          A/S:  Air suspension 
 
A/H: Aluminum heads       E.E.C: Exhaust emission       
                                                    control

F/I: Fuel injection              H.D.: Heavy duty           

HPE: High performance     H/L: Hydraulic lifters 
         engine

M/T: Manual trans              P/G: Powerglide     

P/S: Power steering          SHPE: Special Hi Perf.   
                                                    engine
                                                    
T/C: Turbocharged             T/I: Transistor ignition          
           
T/H: Trubo hydramatic     

1962-68

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