Chevrolet 235 Engine Serial Number

Chevrolet 235 Engine Performance Parts
What Year Is My 235 Chevy Engine
Chevy 235 Engine Identification Numbers
Chevrolet 235 Engine Serial Numbers Lookup
How Do I Identify My Chevy Engine

Year Engine ID Codes 1966 YS, YR, YH, YC, YD The 6 cylinder engine numbers are stamped on a pad on the right side of the engine at the rear of the distributor. The V8 engine numbers are stamped on a pad immediately forward of the right hand cylinder head. Chevrolet Engine ID 1965-66 Chevrolet Serial Identification Number C 144 6 S 107722. How to decode the number on a chev inline 6 engine for the year it was made - Answered by a verified Chevy Mechanic. 378307 Chevrolet 60-62 235.

Chevrolet 235 Engine Serial Number Average ratng: 9,6/10 5248 reviews The Chevy inline straight-6 engine is one of the most important engines in the history of Chevrolet. Chevy 235 engines were some of the mainstays for the manufacturer through the first half of the twentieth century and became the base engine in 1955 when the V8 was added to.
Chevrolet Passenger Cars and Trucks. Model Identification Charts, Serial Number & Cowl Tag Locations, Paint, Trim & Engine Codes for U.S. Built 1939 - 1958 Models.
Serial numbers are on a plate on the right front door hinge pillar. Engine numbers: 6 cylinder on crankcase to rear of distributor. Engine numbers were HA-1001 to HA-1320152: The first numbers in the serial number designate the assembly plants as follows.

Date Codes

Chevrolet 235 Engine Performance Parts

What Year Is My 235 Chevy Engine

Date codes on engines and their parts can help verify if an engine is original to a car. This is especially helpful on cars that do not have a VIN stamped on their engines. Starting in 1962, most high performance engines would be stamped with the cars VIN but this left out all other powerplants and cars built prior to '62. (it wasn't until 1968 that mandatory VIN stamping on all engines was enacted) When a car's VIN matches the VIN stamped on the block, it shows that it's the original engine to the car. (providing it wasn't 'restamped' by a forger) This is commonly known as a 'numbers matching' car.
In order to be 'correct', these date codes have to 'pre-date' the cars build date which can be found on the cowl tag by a few days to weeks as the powerplants (as well as transmissions and rear axles assemblies) were prepared ahead of time. (time will vary) By finding a date code that is passed the cars build date ensures that the engine or part is not original to the car. 235 chevy engine identification

Date codes can be found cast into most major engine parts such as; block, heads, intake manifolds*, exhaust manifolds, crankshaft, water pump and flywheels. Some parts will have date codes stamped into them such as the engine block assembly date and VIN code, rear axle, alternator, generator, distributor and starter. The transmission and rear axle assembly will also have date codes.
The engine block date code can be found cast into the rear of the block as shown in the pic above. (a bright light and cleaning this area with brake cleaner helps if engine is still in car) One side will have the block casting code and the other will have a date code. This is the date for when the block was casted. There is a date stamped on the front of the block for when it was assembled. For the heads casting date, you'll need to remove the valve cover and look between the stud bosses. (the casting number can also be found here)
*-special note, high performance aluminum intakes may have date codes located under the oil splash heat shield
A few examples of date codes: Chevrolet 235 engine serial numbers lookup

Chevrolet 235 engine serial numbers lookup

A10 - January 1st, 1960
E13 - May 1st, 1963
L224 - December 22nd, 1964
J305 - October, 30th, 1965
A2962 - January, 29th, 1962

See picture above for a sample of this type of date code.
Use this chart to decode them:

Month
A-January
B-February
C-March
D-April
E-May
F-June
G-July
H-August
I-September
J-October
K-November
L-December

Day
1-31

Year
0-1960
1-1961
2-1962
3-1963
4-1964
5-1965
Or: (as shown above)
60-1960
61-1961
62-1962
63-1963
64-1964
65-1965

Occasionally, a Julian Date was used instead of the above. This type consists of only 3 digits. Leap year must be taken into account with this date format to be accurate. For the 1958-65 cars that we are dealing with, only 1960 and 1964 had leap year or an extra day (Feb 29th). Use the appropriate charts below for your year.
A few examples:

Chevy 235 Engine Identification Numbers

A few examples of Julian Date codes below:

Chevrolet 235 Engine Serial Numbers Lookup

070 - March 11th for a non leap year or March 10th with leap year
315 - November 11th for a non leap year or November 10th with leap year
361 - December 26th for a non leap year or December 27th with leap year

How Do I Identify My Chevy Engine

Click here to view a sample of a Julian Date Code
Use these charts to decode them:

Julian Date Calender-Non Leap years (1958-1959-1961-1962-1963-1965)
Day	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Day
1	1	32	60	91	121	152	182	213	244	274	305	335	1
2	2	33	61	92	122	153	183	214	245	275	306	336	2
3	3	34	62	93	123	154	184	215	246	276	307	337	3
4	4	35	63	94	124	155	185	216	247	277	308	338	4
5	5	36	64	95	125	156	186	217	248	278	309	339	5
6	6	37	65	96	126	157	187	218	249	279	310	340	6
7	7	38	66	97	127	158	188	219	250	280	311	341	7
8	8	39	67	98	128	159	189	220	251	281	312	342	8
9	9	40	68	99	129	160	190	221	252	282	313	343	9
10	10	41	69	100	130	161	191	222	253	283	314	344	10
11	11	42	70	101	131	162	192	223	254	284	315	345	11
12	12	43	71	102	132	163	193	224	255	285	316	346	12
13	13	44	72	103	133	164	194	225	256	286	317	347	13
14	14	45	73	104	134	165	195	226	257	287	318	348	14
15	15	46	74	105	135	166	196	227	258	288	319	349	15
16	16	47	75	106	136	167	197	228	259	289	320	350	16
17	17	48	76	107	137	168	198	229	260	290	321	351	17
18	18	49	77	108	138	169	199	230	261	291	322	352	18
19	19	50	78	109	139	170	200	231	262	292	323	353	19
20	20	51	79	110	140	171	201	232	263	293	324	354	20
21	21	52	80	111	141	172	202	233	264	294	235	255	21
22	22	53	81	112	142	173	203	234	265	295	326	356	22
23	23	54	82	113	143	174	204	235	266	296	327	357	23
24	24	55	83	114	144	175	205	236	267	297	328	358	24
25	25	56	84	115	145	176	206	237	268	298	329	359	25
26	26	57	85	116	146	177	207	238	269	299	330	360	26
27	27	58	86	117	147	178	208	239	270	300	331	361	27
28	28	59	87	118	148	179	209	240	271	301	332	362	28
29	29	88	119	149	180	210	241	272	302	333	363	29
30	30	89	120	150	181	211	242	273	303	334	364	30
31	31	90	151	212	243	304	365	31

Julian Date Calender-with Leap Years (1960 & 1964)
Day	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Day
1	1	32	61	92	122	153	183	214	245	275	306	336	1
2	2	33	62	93	123	154	184	215	246	276	307	337	2
3	3	34	63	94	124	155	185	216	247	277	308	338	3
4	4	35	64	95	125	156	186	217	248	278	309	339	4
5	5	36	65	96	126	157	187	218	249	279	310	340	5
6	6	37	66	97	127	158	188	219	250	280	311	341	6
7	7	38	67	98	128	159	189	220	251	281	312	342	7
8	8	39	68	99	129	160	190	221	252	282	313	343	8
9	9	40	69	100	130	161	191	222	253	283	314	344	9
10	10	41	70	101	131	162	192	223	254	284	315	345	10
11	11	42	71	102	132	163	193	224	255	285	316	346	11
12	12	43	72	103	133	164	194	225	256	286	317	347	12
13	13	44	73	104	134	165	195	226	257	287	318	348	13
14	14	45	74	105	135	166	196	227	258	288	319	349	14
15	15	46	75	106	136	167	197	228	259	289	320	350	15
16	16	47	76	107	137	168	198	229	260	290	321	351	16
17	17	48	77	108	138	169	199	230	261	291	322	352	17
18	18	49	78	109	139	170	200	231	262	292	323	353	18
19	19	50	79	110	140	171	201	232	263	293	324	354	19
20	20	51	80	111	141	172	202	233	264	294	325	355	20
21	21	52	81	112	142	173	203	234	265	295	326	356	21
22	22	53	82	113	143	174	204	235	266	296	327	357	22
23	23	54	83	114	144	175	205	236	267	297	328	358	23
24	24	55	84	115	145	176	206	237	268	298	329	359	24
25	25	56	85	116	146	177	207	238	269	299	330	360	25
26	26	57	86	117	147	178	208	239	270	300	331	361	26
27	27	58	87	118	148	179	209	240	271	301	332	362	27
28	28	59	88	119	149	180	210	241	272	302	333	363	28
29	29	60	89	120	150	181	211	242	273	303	334	364	29
30	30	90	121	151	182	212	243	274	304	335	365	30
31	31	91	152	213	244	305	366	31

Casting Number	Make	Year	CID
1970	Chevrolet	1964-1967	292
2135412	GMC	1946-1954	248,270
2193980	GMC	1952-1954	302
2324003	GMC	1955-1963	270
2324004	GMC	1955-1962	302
2404929	GMC	1955-1963	270
2192402	GMC	Military	302
289890	Chevrolet	1963-1977	292
328575	Chev/Buick/Olds/Pontiac	1968-1984	250
328576	Chev/Buick/Pontiac	1968-1976	250
328880	Chevrolet	1963-1977	292
329990	Chevrolet	1963-1977	292
358825	Chevrolet	1966-1976	250
3629703	Chevrolet	1950-1952	235
366855	Chev/Buick/Olds/Pontiac	1966-1984	250
3692703	Chevrolet	1950-1952	235
3692708	Chevrolet	1950-1952	235
3692713	Chevrolet	1950-1952	235
3693374	Chevrolet	1942-1949	235
37001481	Chevrolet	1953-1955	235
3701946	Chevrolet	1953	235
3703414	Chevrolet	1954-1956	261
3733340	Chevrolet	1955-1957	261
3733813	Chevrolet	1958	261
3733946	Chevrolet	1954-1955	235
3733949	Chevrolet	1953-1955	235
3733950	Chevrolet	1954-1955	261
3737012	Chevrolet	1955-1957	261
3738307	Chevrolet	1958-1962	235
3738365	Chevrolet	1960-1962	261
3738476	Chevrolet	1958-1962	235
3738813	Chevrolet	1955-1963	261
3739365	Chevrolet	1958-1962	261
3739716	Chevrolet	1958-1962	235
3759365	Chevrolet	1959	261
3764476	Chevrolet	1958-1962	235
3769716	Chevrolet	1958-1962	235
3769717	Chevrolet	1959-1962	261
3769925	Chevrolet	1958-1962	261
3773949	Chevrolet	1954	235
3782856	Chevrolet	1962-1967	194
3782858	Chevrolet	1962-1967	194
378307	Chevrolet	1960-1962	235
3783949	Chevrolet	1953-1954	235
3788378	Chevrolet	1962-1974	292
3788406	Chevrolet	1962-1969	230
3788514	Chevrolet	1962-1970	153
3788813	Chevrolet	1955-1959	261
3789404	Chevrolet	1963-1976	292
3789412	Chevrolet	1963-1966	292
3789716	Chevrolet	1963-1972	292
3792852	GMC	1962-1966	194
3792858	Chevrolet	1962-1967	194
3821970	GMC	1967-1972	292
3833057	Chevrolet	1962-1970	191
3833067	Chevrolet	1963-1970	194
3833340	Chevrolet	1955-1957	261
383340	Chevrolet	1955-1957	261
3835253	Chevrolet	1942-1953	216
3835309	Chevrolet	1942-1949	235
3835335	Chevrolet	1942-1949	235
3835353	Chevrolet	1948-1952	216
3835363	Chevrolet	1954	235
3835374	Chevrolet	1942-1949	235
3835491	Chevrolet	1954	235
3835497	Chevrolet	1942-1953	216
3835527	Chevrolet	1951	216
3835692	Chevrolet	1950-1952	235
3835794	Chevrolet	1942-1953	216
3835846	Chevrolet	1953	235
3835849	Chevrolet	1942-1953	216
3835894	Chevrolet	1953	216
3835911	Chevrolet	1953-1955	235
3835917	Chevrolet	1954-1955	235
3835946	Chevrolet	1953	235
3835949	Chevrolet	1954	235
3836012	Chevrolet	1955-1957	261
3836223	Chevrolet	1955-1957	235
3836233	Chevrolet	1955-1957	235
3836340	Chevrolet	1955-1958	261
3836386	Chevrolet	1955-1957	235
3837004	Chevrolet	1955-1957	235-261
3837012	Chevrolet	1955-1957	261
3843363	Chevrolet	1953-1955	235
3850817	Chevrolet	1962-1978	230-250
3851656	Chevrolet	1963-1972	292
3851659	Chevrolet	1963-1976	292
3851859	Chevrolet	1963-1972	292
3854036	Chevrolet/Olds/Pontiac	1962-1976	230-250
3855914	Chevrolet	1963-1966	292
3855987	Chevrolet	1963-1971	292
3855991	Chevrolet	1963-1970	230
3856233	Chevrolet	1955	235
3858190	Chevrolet	1954-1955	235
3877178	Buick/Olds/Chev/Pont/GMC	1962-1978	230-250
3879875	Chevrolet	1962-1970	194
3886061	Chevrolet	1963-1966	292
3890011	Buick/Chev/Olds/Pontiac	1968-1972	250
3890013	Chevrolet	1968-1972	250
3892858	Chevrolet	1964-1967	194
389770	Chevrolet	1942-1951	216
3897702	Chevrolet	1942-1953	216
3921770	Chevrolet	1966-1976	292
3921967	Chevrolet	1964-1969	230
3921968	Chevrolet	1964-1976	230-150
3921970	Chevrolet	1963-1976	292
828575	Chevrolet	1972-1977	250
837751	Chevrolet	1942-1949	235
839770	Chevrolet	1942-1953	216
8397715	Chevrolet	1942-1949	235
839910	Chevrolet	1942-1951	216
839931	Chevrolet	1942-1949	235
8994256	Chevrolet	1964-1977	292
9890043	Pontiac	1968-1969	250

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