Please note that several of these numbers were personally researched and I know to be correct.   These numbers are in Blue.   Some 1955 - 63 and All  engines with 7 main bearings, printed in purple,  were pirated (with permission) from Inliners International.  (Click here to check out their site)  I believe that someone used part numbers when making the list which are similar but different than casting number.     Some of these numbers are obviously incorrect and marked in red. Numbers in green are made in Canada for countries other than USA.   I have listed Canadian casting numbers below this chart, that David Hayward was so kind to send me.

Engine Casting Numbers & ID.



 
 
 
 
 
 
 
 
 
Engine Casting # Make  Year   CID, #mains, number of cylinders  Possible Stamped

Serial Numbers 

         
         
14001133 Chevrolet 76-80 292 = 7  
1782594 Chev 36  Canada M5593000
1788201  Chev 37 Australia R in serial # (?)
1970 Chevrolet 64-67 292 = 7  
2135412 GMC 46-54 200,270 = 4  
2193980 GMC 52-54 302  
2324002 GMC 55-62 248,302  
2324003 GMC 55-63 270  
2324004 GMC 55-62 302  
2404929 GMC 55-63 270 = 4m  
289890 Chevrolet 63-77 292 = 7  
327773 Chev 490 & Supr 1922-24 171-4cyl  
328518 Chevrolet 73-77 292 = 7  
328572 Chevrolet 73-76 250 = 7  
328575 Chev/Buick/Olds/ Pontiac 68-84 250 = 7  
328576 Chev/Buick/Pontiac 68-76 250 = 7  
328578 Chevrolet 73-84 292 = 7  
328880 Chevrolet 63-77 292 = 7  
329990 Chevrolet 63-77 292 =7  
344624 Chev Sup 1925 171 – 4cyl = 3  
345504 Chev Sup 1926 171 – 4cyl = 3  
346715 Chev 26?? 171 – 4cyl = 3  
348532 Chev 28 171 – 4cyl =3  
348709 Chev 27 171 – 4cyl =3  
352194 Chevrolet 73-84 292 =7  
358825 Chevrolet 66-76 250 = 7  
3629703 Chevrolet 50-52 235 = 4   
364909 Chevrolet/Olds 75-79 292 = 7
3660439  Chev 41 235 = 4m  
366855 Chev/Buick/Olds/ Pontiac 66-84 250 = 7  
3692703 Chevrolet 50-51 235 = 4 PG HDA,HDM,HEA,HEM

JDA,JDM,JEA,JEM

3692708 Chevrolet (51?)50-52 235  
3692713 Chevrolet (50?)50-52 Truck 235  
3693374 Chevrolet (46?)42-49 235  
3701481 Chevrolet 54 235 TorF54L-Z
3701483 Chev 53 235 LDA,LDM,LEA,LEM,
3701946 Chevrolet 53 3-spd 235 dipper LAA(?) ditto above. 
3702436(part#?) Chev 54-55 261  
3703414 Chevrolet 54-56(??) 261  
37127 Chevrolet 73-76 250 = 7  
3733340 Chevrolet 55-57 261  
3733414 Chev 55-57  261  
3733813 Chevrolet 58 261  
3733946 Chevrolet 54-55 235  
3733949 Chevrolet 55 1st ser 235  
3733950 Chevrolet 54-55 261  
3737012 Chevrolet 55-57 261  
3738307 Chevrolet 58-60 trk 235  
3738365 Chevrolet 60-62 261  
3738476 Chevrolet 58-62 235  
3738813 Chevrolet 55-59 261  
3739365 Chevrolet 58-62(59?) 261  
3739716 Chevrolet 58-62(60) 235  
3759365 Chevrolet 59  261  
3764476 Chevrolet 58-62 235  
3768925  Chev (half inch NPT oil gauge)  55 - + 261  
3769 Chev 58 – 62 235  
3769716 Chevrolet 60 235  
3769717 Chevrolet 59-62 261  
3769925 Chevrolet 58-62 261  
377127 Chevrolet/Olds/ Pontiac 73-79 250 = 7  
377129 Chevrolet 73-84 292 = 7  
3773949 Chevrolet 54 235  
3777178 Buick 68-76 250 = 7  
3782856 Chevrolet 62-67 194 = 7  
3782858 Chevrolet 62-67 194 = 7  
378307 Chevrolet 60-62 235  
3783949 Chevrolet 53-54 235  
3788378 Chevrolet 62-74 292 = 7  
3788406 Chevrolet 62-69 230 = 7  
3788514 Chevrolet 62-70 153 =5–4cyl   
3788813 Chevrolet 55-59(58?) 261  
3789404 Chevrolet 63-76 292 = 7  
3789412 Chevrolet 63-66 292 = 7  
3789716 Chevrolet 63-72 292 = 7  
3792852 GMC 62-66 194 = 7  
3792858 Chevrolet 62-67 194 = 7  
3821970 GMC 67-72 292 = 7  
3833057 Chevrolet 62-70 194 = 7  
3833067 Chevrolet 63-70 194 = 7  
3833340 Chevrolet 55-57 261  
383340 Chevrolet 55-57 261  
3835253 Chevrolet 48 – 49 216 FA, GA
3835309 Chevrolet 48 - 49 235 FDA,FDM,FEA,FEM

GDA,GDM,GEA,GEM

3835335 Chevrolet 47  235 EDA,EDM,EEA,EEM
3835353 Chevrolet 48-52 216  
3835363 Chevrolet 54 235  
3835374 Chevrolet 42-49 235  
3835491 Chevrolet 54 235  
3835497 Chev (half ton ?) 50 - 51 216 AHCA-BJCM 

HAA-JCQ

3835527 Chevrolet 51 216  
3835692 Chevrolet 52 235 KDA,KDM,KEA,KEM
3835794 Chevrolet 52-53 216  
3835846 Chevrolet 53 235  
3835849 Chev (half ton ?) 52 -53 216 AKCA-BLCP 

KAA-LCQ

3835894 Chevrolet 53 216  
3835911 Chevrolet 54-55 235  
3835917 Chevrolet 54-55 235  
3835946 Chevrolet 53 235  
3835949 Chevrolet 54 235  
3836012 Chevrolet 55-57 261  
3836223 Chevrolet 55-57 235  
3836233 Chevrolet 55-4/1/56 235  
3836340 Chevrolet 57 261  
3836386 Chevrolet 55-57 235  
3837004 Chevrolet T56X 55-57 235-261  
3837012 Chevrolet 55-57 Also42-51 261 ???? 

216 ????

 
3838004 Chev 55-57 235  
3843363 Chevrolet 53-55 235  
3850817 Chevrolet 62-78 230-250 = 7  
3851656 Chevrolet 63-72 292 = 7  
3851659 Chevrolet 63-76 292 = 7  
3851859 Chevrolet 63-72 292 = 7  
3854036 Chev/Olds/ Pontiac 62-76 230-250 = 7  
3855914 Chevrolet 63-66 292 = 7  
3855987 Chevrolet 63-71 292 = 7  
3855991 Chevrolet 63-70 230 = 7  
3856233 Chevrolet 55 235  
3858190 Chevrolet 54-55 235  
386855 Chevrolet 74-77 250 = 7  
3877178 Buick/Olds/Chev/ Pont/GMC 62-78 230-250 = 7  
3879875 Chevrolet 62-70 194 = 7  
3886061 Chevrolet 63-66 292 = 7  
3890011 Buick/Chev/Olds /Pontiac 68-72 250 = 7  
3890013 Chevrolet 68-72 250 = 7  
3892858 Chevrolet 64-67 194 = 7  
389770 Chevrolet 42-51 (?) 216  
3897702 Chevrolet 42-53 (?) 216  
3921770 Chevrolet 66-76 292 = 7  
3921967 Chevrolet 64-69 230 = 7  
3921968 Chevrolet/Olds 64-76 230-250 = 7  
3921970 Chevrolet 63-76 292 = 7   
40050 Chev FA Early 1916-19 224 – 4cyl  
43950 Chev FB 1919-22 224 – 4cyl  
45834  Chev 490 1922  171 – 4 cyl  
473180 Chev Standard 1933 182 3 main Head = 600569
473741 Chev Standard 1934 182 3 main Head = 473740
5485363 Chev 54 235  
5845363 Chev 54 235  
6107326 GMC 39 – 54  228  
6107328 GMC 39 – 55 248  
743 Chev 490 1916 – 17 171-4cyl  
828575 Chevrolet 72-77 250 = 7main  
835501 Chev 29 – 30 194 = 3main  
836010 Chev 1936 206 = 3main Head = 837981
836409 Chev 31 194 = 3main  
836573 Chev 32 194 = 3main Head = 836718
837591 Chev 35 206 = 3main Early Head = 837230 
Late Head = 837682
837231 Chev Master 1933 & 34 206 = 3 main 33=836961,34=837230
837751 Chevrolet 42-49 235 dipper  
838101 Chev 37 216 = 4 main Serial# 1 – 1187821
838710 Chev 38 216 = 4m 1187822 – 1915446 

B1 - B10502

838941 Chev 39 216 = 4m 1915447 – 2697267 

B10503 - B105461 

838751 Chev 42 235 = 4m BG, BL
839132 Chev 40 216 = 4m 2697268 – 3665902

B105462 - B221935

839400 Chev 41 216 = 4m AA1001 - AA1163720 

AC1001 - AC19549

839751  Chev 42 – 46 235 = 4m BG, BL, DDA, DDM, DEA, DEM 
839770 Chevrolet (46-49?) 42 216 2AA, 2AC, BA

DA, EA

8397715 Chevrolet 42-49 235  
839910 Chevrolet 42-51 216  
839931 Chevrolet 42-49 235  
8692703(?) Chev PG 50 235  
8994256 Chevrolet 64-77 292 = 7  
93403466 Chevrolet 75-83 250 = 7  
93403467 Chevrolet 75-84 292 = 7  
93406004 Chevrolet 75-84 292 = 7  
967 Chev 490 1918 - 21 171-4cyl  
9787437 Pontiac 66-67 230 = 7  
9790043 Pontiac 68-69 250 = 7  
9795066 Pontiac 68-69 250 = 7  
9890043 Pontiac 68-69 250 = 7  
         

 
 
 
1929 to 1952 U.S. & CANADIAN CHEVROLET CYLINDER BLOCKS

CASTING VERSUS PARTS NOS.

MODEL YEAR
CASTING #S+

CANADIAN WHERE KNOWN

U.S. PARTS #S [NOT CANADIAN]
1929
835501
362473
1930
835501
362845
1931
836409

CANADIAN KNOWN:

886273

363148
1932
836573
363700
1933 CB
836915
364314
1933 CC
473180

ALSO CANADIAN

364838
1933 CA CB O
837231
364314
1933 CA CB O
837231
601964
1934 DA DB P
837231

ALSO CANADIAN

ANOTHER CANADIAN:

1776846

600372
1934 DC
473741

ALSO CANADIAN

600373
1935
837591

ALSO CANADIAN

ANOTHER CANADIAN:

1782594

MAPLE LEAF TRUCK BLOCK:

1765434

601423
1936
836010
602028
1935-36 FA FB FC FD R
836010

CANADIAN:

1782594

604877
1937-1939
838941

CANADIAN:

1788201

ALSO CANADIAN:

838941 [SAME AS 1939 U.S. CAST #!]

603401
1937-1939
838941
607874
1940
839132
604370
1940
839132
607876
1941 216
839400
605191
1941 216
839400
607890
1941 235
839400
605472
1941 Y 235
839400
605473
1941-1949 216
3835253

3835309

3688770

3692682

1941-1949 235
3835309
3688771
1942 216
839910
607891
1942 235
839910
606636
1942-1947 216
839910
606537
1942-1947 235
839751
606538
1942-1947 235
3835335
606538
1948-1949 235
3835309
3847684
1950-1951 216
3835497
3693846
1950 216
3835497
3693848
1950 235 ex PG
3692713
3693847
1950 235 ex PG
3692713
3693849
1950-1951 235
3692703
3693814
1952 216
3835849
3701164
1952 235
3835692
3701165

 

THANKS TO DAVE DAWN FOR THE ABOVE INFORMATION











Casting Numbers

  Casting number is located below ignition  distributor (Dist).
 

Serial number is located by fuel pump on 29 - 37 engines.

Hence; a 36 block #836010, has a full water jacket, Dipstick and oil filler on left and Serial number by fuel pump.

A 37 block #838101, (Pictured above), has dipstick and oil filler on right, serial number by fuel pump, and two bolts hold the Ignition distributor on.

38 block #838710, has Serial number by two bolt Dist, where it stayed on 6 cylinder engines to the end of production of 7-main engines in the early 90's.

39 engines, #838941, had only one bolt to hold the Ign Dist in place and last year for Oil Dist to have large brass nut.

40 #839132, was the first year of 3 screw Oil Dist and last year for one inch & a quarter hole 37 - 40 water pump.

The numbers I took personally, I know to be correct for the following years 1927-31, & 1937 - 54. Other numbers I've copied from reliable sources but have put question marks (????) when the numbers were duplicated or didn't make sense. Example: 1951 & 52 could not use same block cuz motor mounts were different.

The stamped serial number only reflects the vehicle the engine was originally mounted in.  It may be a replacement engine from a different year as new blocks are shipped unstamped. I have a 1954 261 truck engine originally used in a 1940 school bus therefore having the 1940 serial number stamped on it. It would have been the proper replacement engine in 1954 but NOT the original engine.

I identify the blocks by physical characteristics which I will brief you on in a few minutes, but you have to remember a lot of stuff of little other value.

Given the list of casting numbers on the preceding pages and a wire brush, you can identify any 4 or 6 cylinder Chev engine made before 1984. The numbers are different for the engines made in Canada but the physical characteristics are the same for the respective year. Australia and Europe used Canadian blocks. On the 37 block pictured above, the casting numbers are located below the ignition distributor below the cast GM. In 1954 they're in between the fuel pump and front of block.

Physical characteristics: Before 1925, the 4 cylinder engines had the ignition distributor attached behind the gear driven generator so no dist  hole in block. 1928 had push rod covers and 2 port head so casting surfaces in block. 29 – 36 3 main bearing 6s had oil filler and dipstick on left and serial number by fuel pump. 33-34 "standard" (bastard) engine had water pump in head.

(Repeat) The 1937 block pictured above has 2 bolts holding the Ignition distributor on, Dip stick and oil filler on right, but last year for serial # by fuel pump. 38 moved serial by ignition distributor. 39 had one brass bolt holding ignition distributor. 40 had 3 screws holding oil distributor under exhaust manifold rather than large brass bolt as before. The 37 – 40 water pump had one hole to block approximately 1¼;" diameter.

1941 – 54 had two water pump holes approximately 1" diameter. The 235s from 41 – 49 had threads in dipstick to attach dipstick tube on military 10-quart trux. The 216 did not. The 50 – 52 235s had short push rod cover with smooth cast-iron between sparkplugs. 53 – 63 235 & 261 had 3 lumps of cast-iron between spark plugs. 1952 - 54 had 3 boltholes on both sides of block for motor mounts. 261 engines had these  bosses but they were not drilled or tapped.

1955 – 63 had 4" hole for water pump.

All 1933 and newer engines had different motor mounts on trux than cars tho same block may have been used in some cases.

    In England,  there was a tax on the size of the engine bore.  Hence, there were many early British engines with minute bores and immense strokes to counter act this short coming.
    1937 Chevrolets sold in Europe were available with the Cheetah engine.  The Cheetah engine was 196 cu in or 2945 cc with a bore & stroke of 81 x 95.2m m. The original engine was in metric 3548 c.c. with bore & stroke of 88.9 x 95.25 m.m. The Opel metricised 216 was of 3602 c.c. with bore & stroke of 90 x 95 m.m. plus there was the 2.5 litre Opel that was also fitted in Chevrolets of 2473 c.c. or 80 x 82 m.m. This must also have been Chevrolet-based.
 

This has been very brief and there are many more ways to confirm each year and application. That’s why the list of casting numbers may be easier to use.

Good Luck!!
 
 

Production figures  >
 Identification Numbers !!
Trans & Dif ratios >
Paint Chips  >
 Back to Trux >>
 Back to Carz >>
 Back Home >>>

Repair tips