Big Block Chevy Suffix Stamping Codes: AAA - CTB

Abbreviations: AB = Air Brakes, AR = Air Injector Reactor, CA = California, HD = Heavy Duty, hdc = heavy duty clutch, HP = High Performance, LP = Liquid Propane Gas, PG = Powerglide, mt = manual trans, mt-3, 3 speed manual, SHP = Special High Performance, TH = Turbo Hydramatic, ti = transistor ignition. Induction is one (1) 4 barrel carburetor unless specified.

RPO	Year	Code	Model	CID	HP	Trans
AAA	1973	Truck	366	200	Mt	L-86 AR, 60
AAS	1973	Truck	427	230	Mt	L-43 AR, 60
ACA	1984	Marine	427	220		L-43
ACB	1984	Marine	427	220		L-43
ACF	1984	Marine	427	220		L-43
ADA	1983	Marine	427	220		L-43
ADB	1983	Marine	427	220		L-43
ADC	1983	Marine	427	220		L-43
ADS	1973	Truck	366	200	Mt	L-86 AR, 60
ADU	1973	Truck	366	200	540	L-86 AR, 60
ADV	1973	Truck	366	200	475	L-86 AR, 60
ADW	1973	Truck	366	200	Mt	L-86 AR, 60
ADX	1973	Truck	366	200	540	L-86 AR, 60
ADZ	1973	Truck	427	230	Mt	L-43 AR, 60
AEA	1973	Truck	427	230	Mt	L-43 AR, 60
AFA	1976	Truck	366	200	Mt	L-86 60
AFS	1976	Truck	366	200	540	L-86 60
AFD	1977	Truck	366	200	Mt	L-86 AR, 60
AFF	1977	Truck	366	200	540	L-86 60
AFH	1977	Truck	366	200	Mt	L-86 60
AFJ	1977	Truck	366	200	540	L-86 60
AFK	1978	Marine	427	220	Mt	L-43
AFL	1977	Truck	366	200	Mt	L-86 PTO, 60
AFM	1978	Truck	366	200	Mt	L-86 60
AFR	1978	Truck	366	200	Mt	L-86 60
AFT	1973	Truck	366	200	Mt	L-86 LP 60
AFT	1974	Truck	366	200	Mt	L-86 LP 60
AFU	1973	Truck	366	200	Mt	L-86 LP, 60
AFU	1974	Truck	366	200	Mt	L-86 LP, 60
AFU	1978	Truck	366	200	Mt	L-86 60
AHA	1974	Truck	366	200	Mt	L-86 60
AHA	1979	Truck	366	190	Mt	L-86 VIN B, 60
AHS	1974	Truck	366	200	475	L-86 60
AHS	1979	Truck	366	190	Mt	L-86 VIN B, 60
AHC	1979	Truck	366	190	Mt	L-86 VIN B, 60
AHD	1975	Truck	366	200	Mt	L-86 60
AHD	1976	Truck	366	200	Mt	L-86 AB, 60
AHH	1975	Truck	366	200	Mt	L-86 60
AHH	1976	Truck	366	200	Mt	L-86 60
AHH	1977	Truck	366	200	650	L-86 AB, 60
AHH	1979	Truck	366	190	Mt	L-86 VIN B, 60
AHJ	1975	Truck	366	200	540	L-86 60
AHJ	1976	Truck	366	200	540	L-86 60
AHJ	1978	Truck	366	200	Mt	L-86 60
AHK	1973	Truck	366	200	Mt	L-86 60
AHK	1974	Truck	366	200	Mt	L-86 60
AHL	1975	Truck	366	200	475	L-86 60
AHL	1976	Truck	366	200	475	L-86 60
AHL	1979	Truck	366	190	Mt	L-86 VIN B, 60
AHM	1973	Truck	366	200	540	L-86 60
AHM	1974	Truck	366	200	540	L-86 60
AHN	1973	Truck	366	200	Mt	L-86 60
AHR	1973	Truck	366	200	540	L-86 60
AHR	1974	Truck	366	200	540	L-86 60
AHR	1978	Truck	366	200	Mt	L-86 60
AHS	1973	Truck	366	200	Mt	L-86 60
AHS	1974	Truck	366	200	Mt	L-86 60
AHS	1978	Truck	366	200	Mt	L-86 60
AHT	1973	Truck	427	230	Mt	L-43 60
AHT	1978	Truck	366	200	Mt	L-86 60
AHU	1973	Truck	427	230	Mt	L-43 60
AHU	1975	Truck	366	200	Mt	L-86 60
AHU	1976	Truck	366	200	Mt	L-86 60
AHU	1977	Truck	366	200	Mt	L-86 60
AHW	1973	Truck	427	230	Mt	L-43 60
AHW	1975	Truck	366	200	540	L-86 60
AHW	1976	Truck	366	200	540	L-86 60
AHW	1977	Truck	366	200	540	L-86 60
AHX	1975	Truck	366	200	Mt	L-86 AR, 60
AHX	1976	Truck	366	200	Mt	L-86 AR,AB, 60
AHX	1977	Truck	366	200	Mt	L-86 AR,AB, 60
AHY	1975	Truck	366	200	Mt	L-86 AR, 60
AHY	1976	Truck	366	200	Mt	L-86 AR, 60
AHY	1977	Truck	366	200	Mt	L-86 AR,AB, 60
AHZ	1975	Truck	366	200	540	L-86 AR, 60
AHZ	1976	Truck	366	200	540	L-86 AR, 60
AHZ	1977	Truck	366	200	540	L-86 AR,AB, 60
AJA	1977	Truck	427	220	540	L-43 60
AJB	1973	Truck	366	200	475	L-86 60
AKA	1976	Marine	427	260		L-43
AKA	1977	Marine	427	260		L-43
AKA	1975	Truck	427	220	Mt	L-43 60
AKA	1976	Truck	427	220	Mt	L-43 60
AKA	1977	Truck	427	220	Mt	L-43 60
AKA	1979	Truck	427	220	Mt	L-43 VIN E, 60
AKA	1985	Truck	454	240	Mt	LE-8 VIN W, 20, 30
AKB	1975	Marine	427	260		L-43
AKB	1976	Marine	427	260		L-43
AKB	1977	Marine	427	260		L-43
AKB	1975	Truck	427	220	Mt	L-43 60
AKB	1976	Truck	427	220	Mt	L-43 60
AKB	1977	Truck	427	220	Mt	L-43 60
AKB	1979	Truck	427	220	Mt	L-43 VIN E, 60
AKB	1985	Truck	454	240	Mt	LE-8 VIN W, 20, 30
AKC	1975	Marine	427	260		L-43
AKC	1975	Truck	427	220	Mt	L-43 60
AKC	1976	Truck	427	220	Mt	L-43 60
AKC	1977	Truck	427	220	Mt	L-43 60
AKC	1979	Truck	427	220	Mt	L-43 VIN E, 60
AKC	1985	Truck	454	240	Mt	LE-8 VIN W, 20, 30
AKD	1979	Marine	427	220		L-43
AKD	1975	Truck	427	220	Mt	L-43 AR, 60
AKD	1976	Truck	427	220	Mt	L-43 AR, 60
AKD	1977	Truck	427	220	Mt	L-43 AR, 60
AKD	1979	Truck	427	220	Mt	L-43 VIN E, 60
AKD	1985	Truck	454	240	Mt	LE-8 VIN W, 20, 30
AKF	1978	Truck	427	220	Mt	L-43 VIN E, 60
AKF	1985	Truck	454	240	Mt	LE-8 VIN W, 20, 30
AKH	1975	Truck	427	220	Mt	L-43 AR, 60
AKH	1976	Truck	427	220	Mt	L-43 AR, 60
AKH	1977	Truck	427	220	Mt	L-43 AR,AB, 60
AKH	1979	Truck	427	220	Mt	L-43 VIN E, 60
AKJ	1975	Truck	427	220	Mt	L-43 AR, 60
AKJ	1976	Truck	427	220	Mt	L-43 AR, 60
AKJ	1977	Truck	427	220	Mt	L-43 AR, 60
AKJ	1979	Truck	427	220	Mt	L-43 VIN E, 60
AKJ	1985	Truck	454	240	Mt	LE-8 VIN W, 20, 30
AKK	1978	Marine	427	220		L-43
AKK	1976	Truck	366	200	Mt	L-86 60
AKK	1978	Truck	427	220	Mt	L-43 VIN E, 60
AKK	1985	Truck	454	240	Mt	LE-8 VIN W, 20, 30
AKL	1976	Truck	366	200	540	L-86 60
AKL	1977	Truck	366	200	540	L-86 60
AKM	1976	Truck	366	200	Mt	L-86 AR, 60
AKM	1977	Truck	366	200	Mt	L-86 AR, 60
AKM	1979	Truck	427	220	AT	L-43 VIN E, 60
AKM	1985	Truck	454	240	Mt	LE-8 VIN W, 20, 30
AKN	1985	Truck	454	240	Mt	LE-8 VIN W, 20, 30
AKR	1985	Marine	454	240		LE-8
AKR	1976	Truck	366	200	540	L-86 AR, 60
AKR	1977	Truck	366	200	540	L-86 AR, 60
AKR	1985	Truck	454	240	Mt	LE-8 VIN W, 20, 30
AKS	1986	Marine	454	240		LE-8
AKS	1976	Truck	427	220	Mt	L-43 60
AKS	1977	Truck	427	220	Mt	L-43 60
AKS	1986	Truck	454	240	Mt	LE-8 VIN W, 20, 30
AKT	1974	Truck	427	230	Mt	L-43 60
AKT	1978	Truck	427	220	Mt	L-43 VIN E, 60
AKT	1986	Truck	454	240	Mt	LE-8 VIN W, 20, 30
AKU	1986	Marine	454	240		LE-8
AKU	1974	Truck	427	230	Mt	L-43 60
AKU	1978	Truck	427	220	Mt	L-43 VIN E, 60
AKU	1986	Truck	454	240	Mt	LE-8 VIN W, 20, 30
AKW	1974	Truck	427	230	Mt	L-43 60
AKW	1986	Truck	454	240	Mt	LE-8 VIN W, 20, 30
AKX	1976	Truck	427	220	Mt	L-43 AR, 60
AKX	1977	Truck	427	220	Mt	L-43 AR, 60
AKX	1986	Truck	454	240	Mt	LE-8 VIN W, 20, 30
AKY	1986	Truck	454	240	Mt	LE-8 VIN W, 20, 30
AKZ	1986	Truck	454	240	Mt	LE-8 VIN W, 20, 30
ALA	1977	Truck	427	220	540	L-43 60
ALA	1986	Truck	454	240	Mt	LE-8 VIN W, 20, 30
ALB	1980	Marine	427	220		L-43
ALB	1977	Truck	427	220	540	L-43 60
ALB	1986	Truck	454	240	Mt	LE-8 VIN W, 20, 30
ALC	1977	Truck	427	220	540	L-43 AR, 60
ALC	1986	Truck	454	240	Mt	LE-8 VIN W, 20, 30
ALD	1977	Truck	427	220	540	L-43 AR, 60
ALD	1986	Truck	454	240	Mt	LE-8 VIN W, 20, 30
ALF	1977	Truck	427	220	Mt	L-43 PTO , 60
ALH	1986	Truck	454	240	Mt	LE-8 VIN W, 20, 30
ALK	1978	Truck	427	220	Mt	L-43 VIN E, 60
ALK	1987	Truck	454	230	Mt	L-19 TBI VIN N, 20, 30
ALM	1978	Truck	427	220	Mt	L-43 VIN E, 60
ALS	1978	Truck	427	220	Mt	L-43 VIN E, 60
ALS	1987	Truck	454	230	Mt	L-19 TBI VIN N, 20, 30
ALX	1987	Truck	454	230	Mt	L-19 TBI VIN N, 20, 30
ALY	1987	Truck	454	230	Mt	L-19 TBI VIN N, 20, 30
AMA	1986	Marine	427	220		L-43
AMB	1986	Marine	427	220		L-43
AMC	1986	Marine	427	220		L-43
AMD	1981	Marine	427	220		L-43
AMJ	1986	Marine	427	220		L-43
AML	1986	Marine	427	220		L-43
ARM	1978	Truck	366	200	Mt	L-86 60
ASB	1988	Truck	454	230	Mt	L-19 TBI VIN N, 30
ASC	1988	Truck	454	230	Mt	L-19 TBI VIN N, 30
ATA	1975	Truck	366	200	475	L-86 AR, 60
ATB	1975	Truck	366	200	Mt	L-86 AR, 60
ATB	1976	Truck	366	200	Mt	L-86 AR, 60
ATB	1977	Truck	366	200	Mt	L-86 AR, 60
ATC	1975	Truck	366	200	540	L-86 AR, 60
ATC	1976	Truck	366	200	540	L-86 AR, 60
ATC	1977	Truck	366	200	540	L-86 AR, 60
AUA	1979	Truck	454	245	Mt	L-42 VIN S, 70
AUB	1979	Truck	454	245	Mt	L-42 VIN S, 70
AWB	1989	Truck	454	230	Mt	LE-8 VIN W, 30, fwd
AWC	1989	Truck	454	230	Mt	LE-8 VIN W, 30, fwd
AWH	1989	Truck	454	230	Mt	L-19 TBI VIN N, 20, 30
AWJ	1989	Truck	454	230	Mt	L-19 TBI VIN N, 30
AWK	1989	Truck	454	230	Mt	LE-8 VIN W, 30
AWL	1989	Truck	454	230	Mt	LE-8 VIN W, 30
AWM	1989	Truck	454	230	Mt	LE-8 VIN W, 30
AWN	1989	Truck	454	230	Mt	LE-8 VIN W, 30
AWP	1989	Truck	454	230	Mt	L-19 TBI VIN N, 30
AWR	1989	Truck	454	230	Mt	L-19 TBI VIN N, 30
CGS	1970	Chevrolet	454	345	Mt	LS-4 Police
CGT	1970	Chevrolet	454	390	Mt	LS-5 HP Police
CGU	1970	Chevrolet	454	390	Mt	LS-5 HP
CGV	1970	Chevrolet	454	345	Mt	LS-4
CGW	1970	Corvette	454	390	TH	LS-5 HP
CIL	1969	Camaro	402	350	TH	HP
CJA	1969	Chevelle	402	325	Mt	L-35
CJB	1969	Camaro	402	325	PG	L-35 alum hd
CJC	1969	Chevelle	402	350	Mt	L-34 HP
CJD	1969	Chevelle	402	375	4sp	L-78 SHP/Solid Cam/Holly
CJE	1969	Chevelle	402	350	TH	L-34 HP
CJF	1969	Chevelle	402	375	TH	L-78 SHP
CJF	1969	Camaro	402	350	Mt	L-34 HP
CJF	1970	Camaro	396	350	Mt
CJG	1969	Camaro	402	325	TH	L-35
CJH	1969	Camaro	402	375	Mt	L-78 SHP
CJH	1970	Camaro	396	375	Mt	L-78
CJI	1969	Camaro	402	350	400	L-34
CJK	1969	Chevelle	402	325	TH	L-35
CJL	1970	Camaro	396	350	TH	L-34
CJL	1970	Camaro	396	375	TH	L-78
CJL	1969	Camaro	402	375	TH	L-78 SHP
CJU	1969	Camaro	402	325	Mt	L-35
CJV	1969	Chevelle	402	325	Mt	L-35
CKF	1969	Chevelle	402	375	400	L-78 SHP/Solid Cam
CKN	1970	Chevelle	402	330	400	LS-3
CKO	1970	Chevelle	396	375	Mt	L-78 SHP
CKO	1970	Camaro	396	375	Mt	L-78 SHP
CKO	1970	Nova	396	375	Mt	L-78 SHP
CKP	1970	Nova	396	375	TH	L-89 SHP
CKP	1970	Chevelle	396	375	TH	L-89 SHP, alum hd
CKQ	1970	Chevelle	396	375	Mt	L-78 SHP
CKQ	1970	Nova	396	375	Mt	L-78 SHP
CKR	1970	Chevelle	402	330	4sp	LS-3
CKS	1970	Chevelle	402	330	4sp	LS-3 HD clutch
CKT	1970	Chevy II	396	375	Mt	L-89 SHP
CKT	1970	Chevelle	396	375	Mt	L-89 SHP
CKU	1970	Chevelle	396	375	Mt	L-89 SHP
CKU	1970	Chevy II	396	375	Mt	L-89 SHP
CLA	1971	Chevelle	402	300	TH400	LS-3
CLA	1972	Chevelle	396	240	Mt	LS-3
CLA	1971	Monte Carlo	396	300	Mt	LS-3
CLA	1972	Camaro	402	240	Mt	LS-3
CLA	1971	Monte Carlo	402	300	Mt	LS-3
CLA	1972	Camaro	396	240	Mt	LS-3
CLA	1972	Chevelle	402	240	Mt	LS-3
CLA	1971	Chevelle	396	300	Mt	LS-3
CLB	1972	Chevrolet	396	210	Mt	LS-3
CLB	1971	Chevelle	396	300	TH	LS-3
CLB	1972	Chevelle	402	240	TH	LS-3
CLB	1972	Chevrolet	402	210	Mt	LS-3
CLB	1971	Monte Carlo	402	300	TH	LS-3
CLB	1972	Chevelle	396	240	TH	LS-3
CLB	1972	Camaro	396	240	TH	LS-3
CLB	1971	Monte Carlo	396	300	TH	LS-3
CLB	1972	Monte Carlo	396	210	TH	LS-3
CLB	1971	Chevelle	402	300	TH	LS-3
CLB	1972	Monte Carlo	402	210	TH	LS-3
CLB	1972	Camaro	402	240	TH	LS-3
CLC	1971	Camaro	396	300	Mt	LS-3
CLC	1971	Camaro	402	300	Mt	LS-3
CLD	1971	Camaro	396	300	TH	LS-3
CLD	1971	Camaro	402	300	TH	LS-3
CLL	1971	Chevelle	402	300	Mt	LS-3
CLL	1971	Chevelle	396	300	Mt	LS-3
CLL	1971	Monte Carlo	402	300	Mt	LS-3
CLL	1971	Monte Carlo	396	300	Mt	LS-3
CLP	1971	Monte Carlo	396	300	TH	LS-3
CLP	1971	Monte Carlo	402	300	TH	LS-3
CLP	1971	Chevelle	402	300	TH	LS-3
CLP	1971	Chevrolet	396	300	TH	LS-3
CLP	1971	Chevelle	396	300	TH	LS-3
CLP	1971	Chevrolet	402	300	TH	LS-3
CLR	1971	Chevelle	402	300	Mt	LS-3
CLR	1972	Chevrolet	402	210	Mt	LS-3
CLR	1972	Chevrolet	396	210	Mt	LS-3
CLR	1971	Chevrolet	396	300	Mt	LS-3
CLR	1971	Chevelle	396	300	Mt	LS-3
CLR	1971	Chevrolet	402	300	Mt	LS-3
CLS	1972	Chevelle	396	240	Mt	LS-3
CLS	1971	Monte Carlo	402	300	Mt	LS-3
CLS	1971	Monte Carlo	396	300	Mt	LS-3
CLS	1971	Chevelle	402	300	Mt	LS-3
CLS	1972	Chevelle	402	240	Mt	LS-3
CLS	1971	Chevelle	396	300	Mt	LS-3
CPA	1971	Chevelle	454	365	Mt	LS-5
CPA	1972	Chevelle	454	270	Mt	LS-5
CPA	1971	Monte Carlo	454	365	Mt	LS-5
CPD	1971	Chevrolet	454	365	Mt	LS-5
CPD	1972	Chevelle	454	270	TH	LS-5
CPD	1971	Chevelle	454	365	Mt	LS-5
CPD	1972	Chevrolet	454	270	TH	LS-5
CPD	1971	Monte Carlo	454	365	Mt	LS-5
CPD	1972	Monte Carlo	454	270	TH	LS-5
CPG	1971	Monte Carlo	454	365	Mt	LS-5
CPG	1972	Chevrolet	454	270	TH	LS-5
CPG	1971	Chevrolet	454	365	Mt	LS-5
CPG	1971	Chevelle	454	365	Mt	LS-5
CPH	1972	Corvette	454	270	Mt	LS-5
CPH	1971	Corvette	454	365	Mt	LS-5
CPJ	1971	Corvette	454	365	TH	LS-5
CPJ	1972	Corvette	454	270	TH	LS-5
CPP	1971	Chevelle	454	425	Mt	LS-6
CPR	1971	Chevelle	454	425	TH	LS-6
CPS	1971	Nova	454	425	400	LS-6
CPT	1971	Nova	454	425	4sp	LS-6
CPW	1971	Corvette	454	425	Mt	ZR-2
CPX	1971	Corvette	454	425	TH	LS-6
CPY	1971	Chevelle	454	425	400	LS-6 10 released
CPZ	1971	Chevelle	454	425	400	LS-6 4 released
CRI	1970	Corvette	454	390	Mt	LS-5 HP, ti
CRJ	1970	Corvette	454	390	TH	LS-5 ti
CRN	1970	Chevelle	454	360	Mt	LS-5 HP
CRQ	1970	Chevelle	454	360	TH	LS-5 HP
CRR	1970	Chevelle	454	450	TH	LS-6 SHP
CRS	1970	Chevelle	454	450	TH	LS-6 SHP, alum hd
CRT	1970	Chevelle	454	360	Mt	LS-5 HP
CRV	1970	Chevelle	454	450	Mt	LS-6 HP
CRW	1972	Chevelle	454	270	TH	LS-5 AR
CRW	1972	Chevrolet	454	270	TH	LS-5 AR
CRW	1972	Monte Carlo	454	270	TH	LS-5 AR
CRX	1972	Chevelle	454	270	Mt	LS-5 AR
CRY	1972	Chevrolet	454	270	TH	LS-5 AR
CSR	1972	Corvette	454	270	Mt	LS-5 AR
CSS	1972	Corvette	454	270	TH	LS-5 AR
CTA	1972	Camaro	396	240	Mt	LS-3 AR
CTA	1972	Chevelle	396	240	Mt	LS-3AR
CTA	1972	Camaro	402	240	Mt	LS-3 AR
CTA	1972	Chevelle	402	240	Mt	LS-3 AR
CTB	1972	Camaro	396	240	TH	LS-3 AR
CTB	1972	Camaro	402	240	TH	LS-3 AR
CTB	1972	Chevelle	402	240	TH	LS-3 AR
CTB	1972	Chevrolet	402	210	Mt	LS-3 AR
CTB	1972	Chevrolet	396	210	Mt	LS-3 AR
CTB	1972	Chevelle	396	240	TH	LS-3 AR