Intake Manifold Codes

Intake Manifolds have casting codes on them as well and with the date code you can determine what engine it came on. They are located on usually on the number 1 intake runner by the thermostat.

The date code is a 3 or 4 digit code. The first digit will be a letter.

A=January
B=February
C=March, etc.

Followed by a 1 or 2 digit number for the day of the month. The last digit will be the year.

Casting	Year	CID	HP	Carb	Type	Notes
521510	1955	287	173, 180	Rochester	1×2
521512	1955	287	200	Rochester	1×4
521570	1956	316	192, 205	Rochester	1×2
521571	1956	316	227	Rochester	1×4
523813	1957	347	227, 252	Rochester	1×2
523814	1957	347	244, 270	Rochester	1×4
528533	1957	347	290, 317	Rochester	3×2
528577	1958	370	240, 255	Rochester	1×2
528578	1958	370	255, 285, 315	Rochester	1×4
529571	1958	370	300, 330	Rochester	3×2
532119	1959	389	245, 280	Rochester	1×2
534318	1959	389	215	Rochester	1×2	425 E
532120	1959	389	260, 300, 330	Carter	1×4
532422	1959	389	315, 345	Rochester	3×2
536517	1960	389	215, 230, 283	Rochester	1×2
535482	1960	389	348	Carter	1×4	SD
536518	1960	389	235, 281, 303, 333	Carter	1×4
535552	1960	389	363	Rochester	3×2	SD
536194	1960	389	318, 348	Rochester	3×2
535889	1960	389	348, 368	Carter	1×4	SD
538200	1961	389	215, 230, 267, 283	Rochester	1×2
538201	1961	389	235, 276, 287, 303, 333	Carter	1×4
538202	1961	389	318, 348	Rochester	3×2
540510	1961	389	368	Rochester	3×2	SD
541474	1962	389	215, 230, 267, 283	Rochester	1×2
541475	1962	389	235, 276, 287, 303, 333	Carter	1×4
541690	1962	389	318, 348	Rochester	3×2
544128	1962	389	385	Carter	1×4	SD
544128	1962	421	353	Carter	1×4	SD
9770274	1963	326	280	Carter	1×4
9770274	1963	389	235, 276, 303	Carter	1×4
9770274	1963	421	320, 353	Carter	1×4
9770275	1963	389	313	Rochester	3×2
9770275	1963	421	370	Rochester	3×2
544128	1963	421	353, 390	Carter	1×4	SD
9772390	1963	421	363	Carter	1×4	SD
9770273	1963	326	250, 260	Rochester	1×2
9770273	1963	389	215, 230, 235, 267,283	Rochester	1×2
9770274	1964	389	235, 303, 306	Carter	1×4
9770274	1964	421	320	Carter	1×4
9775088	1964	389	330, 348	Rochester	3×2
9775088	1964	421	350, 370	Rochester	3×2
9778817	1965	326	250	Rochester	1×2
9778817	1965	389	256, 290	Rochester	1×2
9778816	1965	326	285	Carter	1×4
9778816	1965	389	276, 325, 333, 335	Carter	1×4
9778816	1965	421	338	Carter	1×4
9778818	1965	389	338, 360	Rochester	3×2
9778818	1965	421	356, 376	Rochester	3×2
9782894	1966	326	250	Rochester	1×2
9782894	1966	389	256, 290	Rochester	1×2
9784438	1966	389	256, 290	Rochester	1×2
9782896	1966	326	285	Carter	1×4
9782896	1966	389	325, 333, 335	Carter	1×4
9782896	1966	421	338, 350	Carter	1×4
9782898	1966	389	360	Rochester	3×2
9782898	1966	421	356, 376	Rochester	3×2
9784438	1966	326	250	Rochester	1×2
9784438	1967	400	255, 265, 290	Rochester	1×2
9782896	1967	326	285	Carter	1×4
9782896	1967	400	293, 325, 333, 350	Carter	1×4
9786282	1967	400	335, 360	Qjet	1×4	GTO
9786286	1967	400	325, 335, 360	Qjet	1×4	GTO
9786286	1967	421	360, 376	Qjet	1×4
9790418	1968	350	265	Rochester	1×2
9790418	1968	400	265, 290	Rochester	1×2
9790140	1968	350	320	Qjet	1×4
9790140	1968	400	335, 340, 350, 360, 366	Qjet	1×4
9790140	1968	428	375, 390	Qjet	1×4
9794233	1968	350	265	Rochester	1×2
9794233	1968	400	265, 290	Rochester	1×2
9794234	1968	350	320, 330	Qjet	1×4
9794234	1968	400	330, 335, 340, 350, 360, 366	Qjet	1×4
9794234	1968	428	360, 375, 370, 390	Qjet	1×4
1201	1969	303		Holley	1×4	short RA5
545288	1969	400		Holley	1×4	RA5
9796614	1969	303		Qjet	1×4	short RA4
9796614	1969	400	345, 370	Qjet	1×4	RA4
9799067	1970	350	255	Rochester	1×2
9799067	1970	400	265	Rochester	1×2
9799068	1970	400	330, 350	Qjet	1×4
545288	1970	400		Holley	1×4	RA5
9799084	1970	400	370	Qjet	1×4	RA4
481732	1971	350	250	Rochester	1×2
481732	1971	400	265	Rochester	1×2
481732	1971	455	280	Rochester	1×2
481733	1971	400	300	Qjet	1×4
481733	1971	455	325, 280	Qjet	1×4
483674	1971	455	335	Qjet	1×4	HO
485911	1972	350	160, 175	Rochester	1×2
485911	1972	400	175, 200	Rochester	1×2
485911	1972	455	185, 200	Rochester	1×2
485912	1972	400	250	Qjet	1×4
485912	1972	455	250	Qjet	1×4
488945	1972	455	300	Qjet	1×4	HO
492292	1973	350	150, 175	Rochester	1×2
492292	1973	400	170, 185	Rochester	1×2
491244	1973	400	230	Qjet	1×4
491244	1973	455	250	Qjet	1×4
494744	1973	400	230	Qjet	1×4
494744	1973	455	250	Qjet	1×4
494282	1973	400	230	Qjet	1×4
494282	1973	455	250	Qjet	1×4
494405	1973	455	290	Qjet	1×4	SD
494419	1973	455	290	Qjet	1×4	SD
485640	1973	455	290	Qjet	1×4	SD
495104	1974	350	155, 170	Rochester	1×2
495104	1974	400	190	Rochester	1×2
495106	1974	350	200	Qjet	1×4
495106	1974	400	200, 225	Qjet	1×4
495106	1974	455	250	Qjet	1×4
495107	1974	455	290	Qjet	1×4	SD
496142	1975	350	155	Rochester	1×2
496142	1975	400	170	Rochester	1×2
496140	1975	350	175	Qjet	1×4
496140	1975	400	185	Qjet	1×4
496140	1975	455	200	Qjet	1×4
525353	1976	400	170	Rochester	1×2
525355	1976	350	165	Qjet	1×4
525355	1976	400	185	Qjet	1×4
525355	1976	455	200	Qjet	1×4
525353	1976	350	160	Rochester	1×2
526213	1977	301	135	Rochester	1×2
525355	1977	350	170	Qjet	1×4
525355	1977	400	180, 200	Qjet	1×4
10000518	1978	301	150	Qjet	1×4
10003395	1978	400	180, 220	Qjet	1×4
10000518	1979	301	150	Qjet	1×4
10003395	1979	400	220	Qjet	1×4
10000516	1978	301	135	Rochester	1×2