Chevy Block Casting Numbers: Full List Lookup [Free Download]

44 thoughts on “Chevy Block Casting Numbers: Full List Lookup [Free Download]”

1. 

   Victor

   January 3, 2023 at 8:04 pm

   I have a customer that has a small block chevy motor with 2 numbers on the block as follows V0311CLK. ….1NN179056 can you help.thanks

   Reply
2. 

   Steven Csajka

   January 12, 2023 at 12:52 pm

   Somehow the numbers I have on my 350 4 bolt mains does not match anything on your list. My numbers are casting 4046379.

   Reply
   1. 

      Randy Worner

      April 7, 2023 at 9:19 am

      Are you sure it’s a GM engine?

      Reply
   2. 

      Steven hamilton

      July 21, 2023 at 5:24 am

      I have a 1969 4BOLT MAIN 350 sbc motor. casting #
      3970010- STAMP#
      V0331TBC
      Question,
      What’s so special about this motor. How many horses did this have stock

      Reply
3. 

   john hudson

   February 12, 2023 at 10:37 pm

   I am looking for info. on a chevy small block .Ci.Hp.year. I am trying to find the timing adj. 18L334539 V0302ms

   Reply
   1. 

      Randy Worner

      April 7, 2023 at 8:43 am

      Can I have more numbers from the block? Need more information to decode it

      Reply
4. 

   bud fisher fisher

   February 14, 2023 at 2:01 am

   I have the following info on the block E28-B and T1025J019J145130. I am trying to identify whaqt engine I have.

   Reply
   1. 

      admin

      March 16, 2023 at 10:21 am

      I’m sorry but the numbers are not familiar to me. More details given could help.

      Reply
5. 

   Gregory

   February 15, 2023 at 5:33 am

   I have this number on my block I can’t figure it out please help 3970010, and this one also v0908tBF

   Reply
   1. 

      admin

      March 16, 2023 at 10:12 am

      3970010 means it a 302 or 350 made between 69 and 79 for car & Truck. It had 2 or 4 bolts. you can look up here- https://chevygeek.com/chevy-block-casting-numbers-full-list-lookup/
      v0908tBF means:
      V=Flint
      09=September
      08=8th
      TBF means it’s a 350 made in 1970 or 1979.
      The 1970 version was intended to used on convfwd cab, mil
      While the 97 version was for convcab, alt, fed.
      You can lookup here https://chevygeek.com/gm-chevy-engine-serial-number-lookup/

      Reply
6. 

   Marty Hodge

   February 18, 2023 at 3:27 pm

   I can’t find it. 392406

   Reply
   1. 

      admin

      March 16, 2023 at 9:59 am

      Can I have some more numbers of the engine? Find more here- https://chevygeek.com/chevy-block-casting-numbers-full-list-lookup/

      Reply
7. 

   C K M

   February 22, 2023 at 11:08 pm

   Sir;
   I was hoping you might be able to tell me hp rating on Chevy big block cast number: 3855961

   Thank you,
   CKM

   Reply
   1. 

      admin

      March 16, 2023 at 9:33 am

      Sure, CKM.
      The casting number 3855961 is associated with a variety of Chevrolet small-block V8 engines that were produced from 1962 to 1967.
      Here are some general specifications and details about these engines:

      Horsepower: varies depending on the specific engine configuration, ranging from around 210 to 375 horsepower
      Engine type: Small-block V8
      Displacement: 327 cubic inches (5.4 liters)
      Bore x Stroke: 4.00″ x 3.25″
      Compression ratio: varies depending on the specific engine configuration
      Torque: varies depending on the specific engine configuration, ranging from around 330 to 415 lb-ft of torque
      Valve train: Overhead valve (OHV) with two valves per cylinder
      Fuel delivery: Carbureted, with various models using different types and sizes of carburetors
      Block material: Cast iron
      Cylinder head material: Cast iron
      It’s worth noting that while the 3855961 casting number was used for a variety of 327 engines during the 1960s, the specific engine configuration, horsepower, and torque ratings could vary depending on the year, model, and other factors. Additionally, some engines may have been modified or rebuilt over time, which could further affect their performance and specifications.

      Reply
8. 

   Gary Nelson

   February 23, 2023 at 5:51 am

   Am trying to get info on my small block chevy. Casting number is 3970010. Stamped numbers are V0205ZAH and 19S423482. Near as l can find out through the internet l have an engine manufactured in 1979 to be installed in a 1980 Vette. The internet only shows ZAD, then jumps to ZAK, NOTHING FOR ZAH.
   An you help me fully ID this engine as it needs a few parts to get running?

   Reply
   1. 

      admin

      March 16, 2023 at 9:30 am

      You’re right. It was built in St. Loise in 1979. Here are some information about the ’80 Vette:
      Engine: 5.7-liter (350 cubic inch) V8
      Horsepower: 190 hp @ 4,400 rpm
      Torque: 280 lb-ft @ 2,800 rpm
      Transmission: 3-speed automatic or 4-speed manual
      0-60 mph acceleration: 8.1 seconds (automatic) or 7.9 seconds (manual)
      Top speed: 118 mph (automatic) or 125 mph (manual)
      Fuel economy: 15 mpg city, 20 mpg highway (automatic) or 15 mpg city, 21 mpg highway (manual)
      Length: 185.2 inches
      Width: 69 inches
      Height: 48.2 inches
      Curb weight: 3,237 pounds
      It’s worth noting that these are general specifications for the 1980 Chevrolet Corvette, and specific models and trim levels may have had variations in equipment, options, and performance.
      The automatic transmission was a GM Turbo-Hydramatic 350 (TH350) 3-speed automatic, which was a popular transmission used in many GM vehicles in the 1970s and early 1980s.

      The manual transmission was a Borg-Warner Super T-10 4-speed manual, which was also a commonly used transmission in high-performance vehicles during that era.

      It’s worth noting that the specific transmission options and availability may have varied depending on the model, trim level, and other factors.

      Reply
9. 

   Frank Morgan

   February 25, 2023 at 8:18 pm

   361979
   Shows to be a 1976-79 305 CI, 2 bolt, car or truck
   On the passanger side, front deck, I have these numbers:
   161447861 K02.02.OP
   What are these number?

   Reply
   1. 

      admin

      March 16, 2023 at 9:09 am

      Hey Frank,
      161447861 is the engine vin. The numbers mean:
      1=Chevrolet
      6=1976
      1=Oshawa
      447861=vehicle VIN

      K02.02.OP is the engine serial number.
      K=St. Catherines, Ontario, the assemply plant (It’s Oshawa).
      02=February
      02=2nd
      OP=?? I’m not really sure about this.
      The engine serial number “K0202OP” indicates that the engine was manufactured at the Flint engine plant in Michigan and was installed in a Chevrolet vehicle that was assembled at the Oshawa plant in February 1976.
      It is not possible to determine exactly which Chevy vehicle the engine was installed in. However, based on the information provided, it is likely that the vehicle was one of the models that were produced in Oshawa with the 305 V8 engine in 1976, such as the Caprice Classic, Impala, Bel Air, Monte Carlo, Malibu Classic, or El Camino.
      And here is some information about the transmission used in those vehicles:
      Caprice Classic, Impala, Bel Air: These full-size Chevy models were typically equipped with a Turbo Hydra-Matic 350 (TH350) 3-speed automatic transmission as standard. Optional transmissions for these models included the Turbo Hydra-Matic 400 (TH400) 3-speed automatic and the 4-speed manual transmission.

      Monte Carlo: The Monte Carlo was also typically equipped with the TH350 3-speed automatic as standard. Optional transmissions included the TH400 3-speed automatic and a 4-speed manual transmission.

      Malibu Classic, El Camino: These mid-size Chevy models were available with a range of transmission options, including the TH350 3-speed automatic, TH400 3-speed automatic, and 4-speed manual transmission. In addition, the Malibu Classic and El Camino could also be equipped with a 3-speed manual transmission.
      Hope this is helpful to you.

      Reply
10. 

    Russ

    March 7, 2023 at 7:12 pm

    Hello,
    The casting number is 3790721. Your list shows that number as a 327 cu in engine. The dealer states it as a 283 cu in motor. Could that number be used for both motors? Also, another number is F0326CF which I believe from the photo also came from the block. Any idea as to what that number refers to?
    Thank you for your time and assistance.

    Reply
    1. 

       admin

       March 16, 2023 at 8:35 am

       Hey Russ,
       The dealer was right. It’s a 283, not 327 (checked and corrected).
       And based on the engine serial number F0326CF, I can say that the engine was used in a ’62 Chevy II or a ’62 Impala with a 4 speed mt.
       this post has the details-https://chevygeek.com/gm-chevy-engine-serial-number-lookup/

       Reply
11. 

    Harry Reich

    March 12, 2023 at 5:22 pm

    My casting number was not found, 131625069. There are some other numbers, K0515CK where the other numbers were. Both were found on the front by #2 cylinder, any help in identifying my engine would be great.

    Reply
    1. 

       admin

       March 16, 2023 at 8:22 am

       Hey Harry,
       Do you have any other numbers?
       This post may help- https://chevygeek.com/small-big-block-chevy-engine-code/. K0515CK is the date code.

       Reply
12. 

    kevin halferty

    March 17, 2023 at 1:34 pm

    I found a complete long block, looks to be GM, block No is 500567, fuel pump is at the back of the block on the passenger side, any ideas? thank you kevin

    Reply
13. 

    Bob W

    March 26, 2023 at 12:42 am

    Trying to help a friend identify a early big block. Number # 3855961 either 396 or 427 the information we found was for both. other numbers 6B126325 and T1208EDH or TI208EDH

    Reply
    1. 

       Bob W

       March 26, 2023 at 12:47 am

       It also says
       HI-PERF
       TRUCK
       PASS
       0
       on end of block..

       Reply
    2. 

       Randy Worner

       April 7, 2023 at 8:32 am

       From the casting number 3855961, the engine serial number T1208EDH, and the engine VIN 6B126325, I can say that the engine was a 2-bolt main 396 with 325hp, not 427. It was produced on December 8 1966 and it was installed on a Chevelle with manual transmission.
       The engine VIN 6B126325 looks a bit strange. I think you miss a number before 6. 6 means 1966. The number before 6 will let you know the GM division.

       Reply
14. 

    Danny Dominguez

    March 28, 2023 at 2:32 am

    Anybody out there know how to decode engine tag on the Anniversary ZL-1 427? As well from new, we’re there any other tags or engine serial numbers on these engines? Any information will help.

    Thanks!

    Reply
    1. 

       Randy Worner

       April 7, 2023 at 8:37 am

       What are the numbers you see on it?

       Reply
15. 

    Andrew

    April 12, 2023 at 7:20 am

    Hi, I am trying to determine if the engine is a 348 or a 409. There is a partial number on the engine stamping pad that appears to end in “G09” . I do not have a good picture of the front side of the head to see if there is a stamped “X”

    I can provide pictures if desired.

    Thank you.

    Reply
    1. 

       Randy Worner

       April 26, 2023 at 7:51 am

       I’m sorry, Andrew. But I cannot tell you anything with that number. Do you have any other stamping numbers on it?

       Reply
16. 

    Dennis

    April 17, 2023 at 11:13 pm

    I have a motor with the stamped #190215971
    on the right front of the block. Can you tell me what it is? I was told it was a 1969 327

    Reply
    1. 

       Randy Worner

       April 26, 2023 at 7:49 am

       Do you have any other stamping numbers on it?

       Reply
17. 

    RA

    May 28, 2023 at 11:07 pm

    Can anyone identify/decipher this engine # MG19353? Found in a 68 Camaro.

    Reply
18. 

    Michael Kendrick

    June 2, 2023 at 2:08 am

    Looking to identify 3805283. V1204UA
    Thank you

    Reply
    1. 

       Dale

       July 23, 2023 at 8:27 pm

       Looking to identify 14093827

       Reply
19. 

    steve

    June 3, 2023 at 12:48 pm

    have a block number I can’t find. 398777 gm2

    Reply
20. 

    Heather flora

    June 23, 2023 at 11:54 pm

    Please help I’ve spent hours searching 481932 on center rear of block

    Reply
21. 

    bryce

    July 31, 2023 at 6:48 pm

    I have a 502 and trying to see what version I have casting number is 12363403 knda hard to read

    Reply
22. 

    Craig

    August 2, 2023 at 6:27 pm

    I have F0425PN stamped on the passenger side front engine. What engine do I have?

    Reply
23. 

    Ken

    November 10, 2023 at 8:10 pm

    BBC # front passenger side T1129lc 19DO31021 , casting # on rear 3963512 what engine is it?

    Reply
24. 

    Darrell W. Peters

    November 19, 2023 at 2:29 am

    I have a 4 bolt presumed SBC motor…stated was a 355 Cadillac motor. This motor currently in a 1929 model A I’m attempting to restore. Stamp # is 1466291…Any information you know greatly appreciated. Could not find this # on your list. Thank you.

    Reply
25. 

    Anthony patron

    November 22, 2023 at 11:52 pm

    GM 19 397000 ,F115 Chevy 350

    Reply
26. 

    Russ

    December 10, 2023 at 11:50 pm

    Can’t find my numbers. I have a 1968 El Camino SS 396.
    Block casting no: 3985 440 B238 TO 30 7ET
    Crank casting no: 390 4618 B28 8 182 140 610
    VIN: 13880 8 Z140610
    Appreciate you help. I’m trying to sell this as numbers matching.

    Reply
27. 

    Stefan Thut

    December 31, 2023 at 4:00 pm

    Ich habe einen Camaro 69. Der Motor wurde irgendwann ausgewechselt.
    Habe folgende Nummern gefunden:
    Guss-Nr. 340261 GM KA
    Motor-Nr. 171480 K03 02
    Können Sie mir sagen was das für ein Motor ist.
    Vielen Dank

    Reply