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ENGINE CODES
 
1970-75
 

CHEVY II * NOVA
 
1962 - 64
Code Prefix
1962 - 64
Code Prefix
4 Cyl
std tran
 E 6-194
Taxi, P/G
 HM
4 Cyl
std tran, HDC
 EB 6-194
Taxi, P/V, M/T
 HT
4 Cyl
P/G
 EG 6-194
P/V, P/G
 HU
4 Cyl
std tran, Taxi
 EK 6-230
P/G
 BT
4 Cyl
P/G, Taxi
 EL 6-230
P/G, P/V
 BU
4 Cyl
std tran, P/V
 EP 6-230
M/T
 LP
4 Cyl
P/G, P/V
 EQ 6-230
M/T, P/V
 LR
4 Cyl
std tran,HDC, P/V
 ER 8-283
4 sp. tran
 CF
4 Cyl
std tran, P/V
 ES 8-283
4 sp. tran, A/C
 CG
4 Cyl
P/G, P/V
 ET 8-283
3 sp. tran
 CH
6-194
M/T
 H 8-283
3 sp. tran, A/C
 CJ
6-194
M/T, HDC
 HB 8-283
P/G
 DE
6-194
P/G
 HF 8-283
P/G, A/C
 DF
6-194
Taxi, M/T
 HL
1965 - 66
1965
 4-153
Taxi
 OG
8-283
4 Bar carb, A/C
 PG 4-153
Taxi, P/G
 OJ
8-283
4 Bar carb, A/C, P/G
 PQ 6-194
Taxi
 OQ
    6-194
Taxi, P/G
 OT
    8-283
4 Bar carb
 PE
    8-283
4 Bar carb, P/G
 PO
1965 - 67
1965 - 67
6-194
M/T
 OK 8-283
A/C
 PF
6-194
HDC
 OM 8-283
4 sp.tran
 PL
6-194
P/G
 OR 8-283
4 sp.tran, A/C
 PM
6-230
P/G, A.I.R
 PI 8-283
P/G
 PN
6-230
M/T
 PV 8-283
A/C, P/G
 PP
6-230
P/G
 PX 8-327
P/G
 ZK
8-283
Std. trans
 PD 8-327
P/G, A/C
 ZM
1965 - 68
1966
4-153
M/T
 OA 6-194
P/G, A.I.R
 OS
4-153
HDC
 OC 6-194
HDC, A.I.R
 ZV
4-153
PG
 OH 6-194
Taxi, A.I.R
 ZW
  6-194
HDC, A.I.R
 ZY
8-283
A/C, A.I.R
 PG
8-283
4 sp.tran, A/C, A.I.R
PS
8-327
A.I.R, A/C
 ZC
8-327
P/G, A/C
 ZD
1966 - 67
 8-327
A.I.R, SHPE, A/C
 ZH
6-194
A.I.R, P/G
 ZX
1967
6-230
A.I.R
 PC 6-194
A.I.R
 ZY
8-283
4 sp.tran, A.I.R
 PQ 8-283
A.I.R
 PE
6-283
A.I.R,P/G
 PU 8-327
4 Bar carb
 ZA
8-327
SHPE, A.I.R
 ZG 8-327
A.I.R
 ZB
8-327
SHPE
 ZI 8-327
A/C
 ZE
8-327
SHPE, A/C
 ZJ    
1968
1968
6-230
M/T
 BA 8-307
4 sp.tran
DB
6-230
A/C, HDC
 BB 8-307
P/G
 DE
6-230
HDC
 BC 8-327
Std. tran
 EA
6-230
A/C
 BD 8-327
P/G
 EE
6-230
P/G
 BF 8-327
SHPE
 EP
6-230
A/C, P/G
 BH 8-327
Std. tran
 MK
6-250
Std. tran, HDC
 CM 8-327
SHPE
 ML
6-250
A/C
 CN 8-327
P/G
 MM
6-250
P/G
 CQ
1968 - 69
6-250
A/C, P/G
 CR 8-307
Std. tran
 DA
1969
1969
4-153
M/T
 AA 8-307
T/H
 DD
4-153
T/D
 AB 8-307
4 sp. tran
 DE
6-230
Std. tran
 AM 8-350
M/T
 HA
6-230
P/G, T/D
 AN 8-350
T/H
 HB
6-230
T/H
 AO 8-350
2 Bar carb
 HC
6-230
A/C
 AP 8-350
2 Bar carb, T/H
 HD
6-230
T/H, A/C
 AR 8-350
P/G
 HE
6-250
T/D, P/G
 BB 8-350
2 Bar carb, P/G
 HF
6-250
T/D, P/G, A/C
 BC 8-396
HPE
 JF
6-250
T/H
 BD 8-396
SHPE
 JH
6-250
M/T
 BE 8-396
HPE, T/H
 JI
6-250
A/C
 BF 8-396
SHPE, T/H
 JL
6-250
T/H, A/C
 BH    
8-307
P/G
 DC    

Location:

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

8 CYL - Front pad on righthand side of block

Configuration:

A/C - Air conditioning

O/D - Overdrive

A/H - Aluminum heads

P/G - Powerglide

A/S - Air spension

P/S - Power steering

P/V - Positive crankcase

A.I.R. - Air Injection Reactor ventilation

A/T - Auto trans

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