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Chevrolet V8 Engine ID Codes

1967

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Model Year
1955	1956	1957
1958	1959	1960
1961	1962	1963
1964	1965	1966
1967	1968	1969
1970	1971	1972
1973	1974	1975

Model	Model No.	CID	H.P. (RPO Code)	Trans/Options	Suffix
Passenger	154/156/164/166/16800	283	195	Manual	GA
				Manual, R.H.D.	GB
				3-speed, police	GC
				Manual, low compression	GD
				Manual, low compression, RHD	GE
				Powerglide	GF
				Powerglide, low compression	GG
				Powerglide, RHD	GH
				Powerglide, low compression, RHD	GI
				Manual, A.I.R.	GK
			220 (RPO L77)	Powerglide, 4-bbl	GL
			195	4-speed, A.I.R.	GS
				Powerglide, A.I.R.	GT
				H.D. Clutch	GU
			220	H.D. Clutch	GV
				Manual, 4-bbl	GW
				Manual, 4-bbl, A.I.R.	GX
				Powerglide, 4-bbl, A.I.R.	GZ
		327	275 (RPO L30)	Manual, Holley 4-bbl	HAH
				A.I.R.	HB
				Powerglide, Holley 4-bbl	HCH
				Powerglide, Rochester 4-bbl, A.I.R.	HC
				Powerglide, A.I.R.	HF
				H.D. Clutch	KE
		396	325 (RPO L35)	H.D. 3-speed or 4-speed, Holley 4-bbl	IAH
				H.D. 3-speed or 4-speed, Rochester 4-bbl	IAR
				H.D. 3-speed or 4-speed, A.I.R.	IB
				Powerglide, A.I.R.	IC
				Powerglide, Holley 4-bbl	IGH
				Powerglide, Rochester 4-bbl	IGR
				Turbo Hydra-Matic, A.I.R.	IN
				Turbo Hydra-Matic	IV
		427	425 (RPO L72)	Spec.. High Perf., 11 engine built, no record of install Spec.. High Perf., 6 engine built, no record of install	ID IK
			385 (RPO L36)	H.D. 3-speed or 4-speed, SS only	IE
				Turbo Hydra-Matic, A.I.R., SS only	IF
				H.D. 3-speed or 4-speed, all except SS	IH
				Turbo Hydra-Matic	IJ
				Turbo Hydra-Matic, A.I.R., all except SS	IO
				Turbo Hydra-Matic, SS only	IS
				H.D. 3-speed or 4-speed, A.I.R., SS only	IX

Corvette	19400	327	300	Manual	HE
				Manual, A.I.R.	HH
				Powerglide	HO
				Powerglide, A.I.R.	HR
			350 (RPO L79)	4-speed, H-lift camshaft, A.I.R.	HD
				4-speed, H-lift camshaft, A.C., P.S.	HP
				4-speed, H-lift camshaft	HT
				4-speed, H-lift camshaft, A.I.R., A.C., P.S.	KH
		427	390 (RPO L36)	4-speed, Hydraulic Lifters, Special Cam	IL
				4-speed, Hydraulic Lifters, Special Cam, A.I.R.	IM
				Powerglide, Hydraulic Lifters, Special Cam	IQ
				Powerglide, Hydraulic Lifters, Special Cam, A.I.R.	IR
			400 (RPO L68)	10.25:1 compression, 3x2 Holley	JC
				10.25:1 compression, 3x2 Holley	JD
			435 (RPO L71)	11.00:1 compression, 3x2 Holley	JE
			400	10.25:1 compression, 3x2 Holley	JG
			435	11.00:1 compression, 3x2 Holley	JH
			430 (RPO L88)		n/a

Chevy II/Nova	116/11800	283	195	3-speed	PD
				3-speed, A.I.R.	PE
				3-speed, A.C.	PF
				4-speed	PL
				4-speed, A.C.	PM
				Powerglide	PN
				Powerglide, A.C.	PP
				4-speed, A.I.R.	PQ
				Powerglide, A.I.R.	PU
		327	275 (RPO L30)	Manual	ZA
				Manual, A.I.R.	ZB
				Powerglide, A.I.R.	ZD
				Manual, A.C.	ZE
			350 (RPO L79)	A.I.R., A.C., S.H.P.	ZG
				Manual, S.H.P.	ZI
				Manual, A.C., S.H.P.	ZJ
			275	Powerglide	ZK
			275	Powerglide, A.C.	ZM

Chevelle	132/134/136/13800	283	195	3-speed or Overdrive	DA
				4-speed	DB
				Manual, low compression	DC
				Powerglide	DE
				Powerglide, low compression	DF
				3-speed or Overdrive, A.I.R.	DI
				Powerglide, A.I.R.	DJ
				4-speed, A.I.R.	DK
				H.D. Clutch	DN
		327	275 (RPO L30)	Manual	EA
				Manual, A.I.R.	EB
				Powerglide, A.I.R.	EC
				Powerglide	EE
				H.D. Clutch	EO
			325 (RPO L79)	H.D. 3-speed or 4-speed	EP
				H.D. 3-speed or 4-speed, A.I.R.	ER
				H.D. 3-speed or 4-speed	ES
		396	325 (RPO L35)	H.D. 3-speed or 4-speed	ED
			350 (RPO L34)	H.D. 3-speed or 4-speed, H.P.	EF
			375 (RPO L78)	H.D. 3-speed or 4-speed, S.H.P.	EG
			325	H.D. 3-speed or 4-speed, A.I.R.	EH
			350	H.D. 3-speed or 4-speed, A.I.R., H.P.	EJ
			325	Powerglide	EK
			350	Powerglide, H.P.	EL
			325	Powerglide, A.I.R.	EM
			350	Powerglide, A.I.R., H.P.	EN
			325	Turbo Hydra-Matic	ET
			350	Turbo Hydra-Matic, H.P.	EU
			325	Turbo Hydra-Matic, A.I.R.	EV
			350	Turbo Hydra-Matic, A.I.R., H.P.	EW
			375	4-speed, S.H.P., A.I.R.	EX

Camaro	124/12600	283	195	4-speed	MD **
				Powerglide	MJ **
		302	290 (Part of RPO Z28)	4-speed, S.H.P.	MO
				4-speed, S.H.P., A.I.R.	MP
		327	210	Manual	MA
				Manual, A.I.R.	MB
				Powerglide	ME
				Powerglide, A.I.R.	MF
			275 (RPO L30)	Manual	MK
				Manual, A.I.R.	ML
				Powerglide	MM
				Powerglide, A.I.R.	MN
		350	295 (RPO L48)	Manual	MS
				Manual, A.I.R.	MT
				Powerglide	MU
				Powerglide, A.I.R.	MV
		396	375 (RPO L78)	4-speed, S.H.P.	MQ
				4-speed, S.H.P., A.I.R.	MR
			325 (RPO L35)	H.D. 3-speed or 4-speed	MW
				H.D. 3-speed or 4-speed, A.I.R.	MX
				Turbo Hydra-Matic	MY
				Turbo Hydra-Matic, A.I.R.	MZ
** Records show 72 MD and 121 MJ engines were produced and vehicles shipped to Bloomfield, MI. where vehicles were disassembled for export.