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Old 08-05-2009, 04:13 AM   #1
1Bad62Pro/Street
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Exclamation Chevy Six Cylinder Casting Numbers

Stovebolt Casting Numbers

Try the Casting Number Lookup Tool!
http://www.adchevy.com/tools/castinglookup/

Casting # Make Year Displacement
1970 Chevrolet 64 - 67 292
2135412 GMC 46 - 54 248, 270
2192402 GMC (Military) 302
2193980 GMC 52 - 54 302
2324002 GMC 55 248
2324003 GMC 55 - 63 270
2324004 GMC 55 - 62 302
2404929 GMC 55 - 63 270
289890 Chevrolet 63 - 77 292
328518 Chevrolet 73 - 77 292
328572 Chevrolet 73 - 76 250
328575 Chevrolet / Buick / Oldsmobile / Pontiac 68 - 84 250
328576 Chevrolet / Buick / Pontiac 68 - 76 250
328578 Chevrolet 73 - 84 292
328880 Chevrolet 63 - 77 292
329990 Chevrolet 63 - 77 292
352194 Chevrolet 73 - 84 292
358825 Chevrolet 66 - 76 250
3629703 Chevrolet 50 - 52 235
364909 Chevrolet / Oldsmobile 75 - 79 292
3660439 Chevrolet 41 235
366855 Chevrolet / Buick / Oldsmobile / Pontiac 66 - 84 250
3692703 Chevrolet 50 - 52 235
3692708 Chevrolet 50 - 52 235
3692713 Chevrolet 50 - 52 235
3693374 Chevrolet 42 - 49 235
37001481 Chevrolet 53 - 55 235
3701946 Chevrolet 53 235
3703414 Chevrolet 54 - 56 261
37127 Chevrolet 73 - 76 250
3733340 Chevrolet 55 - 57 261
3733813 Chevrolet 58 261
3733946 Chevrolet 54 - 55 235
3733949 Chevrolet 53 - 55 235
3733950 Chevrolet 54 - 55 261
3737012 Chevrolet 55 - 57 261
3738307 Chevrolet 58 - 62 235
3738365 Chevrolet 60 - 62 261
3738476 Chevrolet 58 - 62 235
3738813 Chevrolet 55 - 63 261
3739365 Chevrolet 58 - 62 261
3739716 Chevrolet 58 - 62 235
3759365 Chevrolet 59 261
3764476 Chevrolet 58 - 62 235
3769716 Chevrolet 58 - 62 235
3769717 Chevrolet 59 - 62 261
3769925 Chevrolet 58 - 62 261
377127 Chevrolet / Oldsmobile / Pontiac 73 - 79 250
377129 Chevrolet 73 - 84 292
3773949 Chevrolet 54 235
3777178 Buick 68 - 76 250
3782856 Chevrolet 62 - 67 194
3782858 Chevrolet 62 - 67 194
378307 Chevrolet 60 - 62 235
3783949 Chevrolet 53 - 54 235
3788378 Chevrolet 62 - 74 292
3788406 Chevrolet 62 - 69 230
3788514 Chevrolet 62 - 70 153
3788813 Chevrolet 55 - 59 261
3789404 Chevrolet 63 - 76 292
3789412 Chevrolet 63 - 66 292
3789716 Chevrolet 63 - 72 292
3792852 GMC 62 - 66 194
3792858 Chevrolet 62 - 67 194
3821970 GMC 67 - 72 292
3833057 Chevrolet 62 - 70 194
3833067 Chevrolet 63 - 70 194
3833340 Chevrolet 55 - 57 261
383340 Chevrolet 55 - 57 261
3835253 Chevrolet 42 - 53 216
3835309 Chevrolet 42 - 49 235
3835335 Chevrolet 42 - 49 235
3835353 Chevrolet 48 - 52 216
3835363 Chevrolet 54 235
3835374 Chevrolet 42 - 49 235
3835491 Chevrolet 54 235
3835497 Chevrolet 42 - 53 216
3835527 Chevrolet 51 216
3835692 Chevrolet 50 - 52 235
3835794 Chevrolet 42 - 53 216
3835846 Chevrolet 53 235
3835849 Chevrolet 42 - 53 216
3835894 Chevrolet 53 216
3835911 Chevrolet 53 - 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 - 57 235
3836340 Chevrolet 55 - 57 261
3836386 Chevrolet 55 - 57 235
3837004 Chevrolet 55 - 57 235
3837012 Chevrolet 55 - 57 261
3843363 Chevrolet 53 - 55 235
3850817 Chevrolet 62 - 78 230, 250
3851656 Chevrolet 63 - 72 292
3851659 Chevrolet 63 - 76 292
3851859 Chevrolet 63 - 72 292
3854036 Chevrolet / Oldsmobile / Pontiac 62 - 76 230, 250
3855914 Chevrolet 63 - 66 292
3855987 Chevrolet 63 - 71 292
3855991 Chevrolet 63 - 70 230
3856233 Chevrolet 55 235
3858190 Chevrolet 54 - 55 235
386855 Chevrolet 74 - 77 250
3877178 Chevrolet / Buick / Oldsmobile / Pontiac / GMC 62 - 78 230, 250
3879875 Chevrolet 62 - 70 194
3886061 Chevrolet 63 - 66 292
3890011 Chevrolet / Buick / Oldsmobile / Pontiac 68 - 72 250
3890013 Chevrolet 68 - 72 250
3892858 Chevrolet 64 - 67 194
389770 Chevrolet 42 - 51 216
3897702 Chevrolet 42 - 53 216
3921770 Chevrolet 66 - 76 292
3921967 Chevrolet 64 - 69 230
3921968 Chevrolet / Oldsmobile 64 - 76 230, 250
3921970 Chevrolet 63 - 76 292
4001133 Chevrolet 76 - 80 292
6107326 GMC 39 - 52 228
6107328 GMC 53 - 54 248
828575 Chevrolet 72 - 77 250
8335794 Chevrolet 42 - 53 216
837751 Chevrolet 42 - 49 235
838101 Chevrolet 37 216
838710 Chevrolet 37 - 38 216
838941 Chevrolet 39 216
839132 Chevrolet 40 216
839400 Chevrolet 41 216
839751 Chevrolet 42 - 46 235
839770 Chevrolet 42 - 51 216
8397715 Chevrolet 42 - 49 235
839910 Chevrolet 42 - 51 216
839931 Chevrolet 42 - 49 235
8994256 Chevrolet 64 - 77 292
93403466 Chevrolet 75 - 83 250
93403467 Chevrolet 75 - 84 292
93406004 Chevrolet 75 - 84 292
9787437 Pontiac 66 - 67 230
9790043 Pontiac 68 - 69 250
9795066 Pontiac 68 - 69 250
9890043 Pontiac 68 - 69 50


http://www.inliners.org/casting/numbers.html

http://www.inliners.org
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Old 08-11-2009, 05:02 PM   #2
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Thumbs up Re: Chevy Six Cylinder Casting Numbers

Deserves a Stickey right??????
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Old 08-11-2009, 11:18 PM   #3
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Re: Chevy Six Cylinder Casting Numbers

Nice find.
Now if only we could decode the 2 and 3 letter suffixes at the end of the dress numbers on the distributor pad.
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Old 08-15-2009, 04:47 AM   #4
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Re: Chevy Six Cylinder Casting Numbers

Quote:
Originally Posted by 1Bad62Pro/Street View Post
Deserves a Stickey right??????
HECK YEAH!
Give the man a sticky
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Old 09-17-2011, 06:44 AM   #5
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Arrow Re: Chevy Six Cylinder Casting Numbers

Langdon's Stovebolt Engine Co. | Specializing in GM 6 Cylinder Engines
http://www.stoveboltengineco.com/

Hot Sixes | Chevy inline 6
http://www.hotsixes.com/index.php?op...&id=2&Itemid=3

Inliners International
http://www.inliners.org/

Clifford Performance :: Make 6 = 8
www.cliffordperformance.net/






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Old 09-17-2011, 07:18 AM   #6
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Re: Chevy Six Cylinder Casting Numbers

stuck
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Old 09-17-2011, 07:24 AM   #7
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Thumbs up Re: Chevy Six Cylinder Casting Numbers

Thanks Bud!
Theres alot more here:
Online engine resources (casting numbers, calculators, etc.)
http://67-72chevytrucks.com/vboard/s...d.php?t=382583
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Old 08-18-2013, 01:57 PM   #8
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Re: Chevy Six Cylinder Casting Numbers

Good stuff
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Old 12-25-2013, 06:54 PM   #9
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Re: Chevy Six Cylinder Casting Numbers

Greetings

My 1971 C10 (SPID indicates a base engine 250 ci) block has a date code of A 71 (perhaps Jan 7, 1971). The block # is 3994257 which doesn't show up on any of the listed resources. Any idea how I can authenticate this motor #? Oh, it's a Fremont build.

thanks
JohnG
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Old 12-26-2013, 08:36 AM   #10
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Re: Chevy Six Cylinder Casting Numbers

Quote:
Originally Posted by Carl Spangler View Post
Greetings

My 1971 C10 (SPID indicates a base engine 250 ci) block has a date code of A 71 (perhaps Jan 7, 1971). The block # is 3994257 which doesn't show up on any of the listed resources. Any idea how I can authenticate this motor #? Oh, it's a Fremont build. thanks JohnG
Stovebolt forum indicates it's more than likely a 250 cubic inch. The 230 and 250 blocks have the same cylinder dimensions but the cranks are different giving the 250 the larger displacement. Only way to make absolutely sure is to dismantle and check.
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Old 12-26-2013, 12:36 PM   #11
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Re: Chevy Six Cylinder Casting Numbers

If it's the original engine in a '71 model year truck, then its gotta be a 250, since there were no 230s in trucks after '67 model year or earlier.
Also what color is it?
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Old 12-26-2013, 07:04 PM   #12
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Re: Chevy Six Cylinder Casting Numbers

Quote:
Originally Posted by '68OrangeSunshine View Post
If it's the original engine in a '71 model year truck, then its gotta be a 250, since there were no 230s in trucks after '67 model year or earlier.
Also what color is it?
The block is a thread-worn orange.

The engine stamp is F0113TCL which would indicate a Jan 13 assembly date which is consistent with the Jan casting date.

Anyone know if there's a S/N to month build database?

regards
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Old 07-08-2014, 01:05 PM   #13
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Arrow Re: Chevy Six Cylinder Casting Numbers

Inline-6



http://www.castingnumbers.info/site/...cks/t/Inline-6

http://chevy.oldcarmanualproject.com/models/engine.htm

http://www.adchevy.com/info/6-cylind...asting-numbers

http://6066gmcclub.com/gmcguy/Inline6.html

http://victorylibrary.com/235BK.htm

http://www.inliners.org/

http://www.castingnumbers.info/site/.../Chevrolet/p/7
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Old 07-08-2014, 01:33 PM   #14
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Re: Chevy Six Cylinder Casting Numbers

That database is missing casting # 3994257
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Old 07-08-2014, 02:30 PM   #15
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Re: Chevy Six Cylinder Casting Numbers

Quote:
Originally Posted by Carl Spangler View Post
The block is a thread-worn orange.

The engine stamp is F0113TCL which would indicate a Jan 13 assembly date which is consistent with the Jan casting date.

Anyone know if there's a S/N to month build database?

regards
JohnG
If not corrupted by a later rebuilder, there should be a stamped code on the machined pad just aft of the distributor hole.
For example two codes on 292s I have are:
F0626UH = Flint, MI, June 26th, 292 Manual Transmission. [1967 block]
F0627XAE= Flint, MI, June 27th, [XAE is a mystery] But it's the known original engine, a 292 L6 [1968] in a '68 C/10 Stepside w/SM465.
The upper listed engine I pulled out of a C/20 longbed stepside ex-Forest Service truck in a junkyard in Tucson in 1977. Coincidence they were built a year and a day apart.
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Old 07-08-2014, 02:33 PM   #16
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Re: Chevy Six Cylinder Casting Numbers

Quote:
Originally Posted by '68OrangeSunshine View Post
If not corrupted by a later rebuilder, there should be a stamped code on the machined pad just aft of the distributor hole.
For example two codes on 292s I have are:
F0626UH = Flint, MI, June 26th, 292 Manual Transmission. [1967 block]
F0627XAE= Flint, MI, June 27th, [XAE is a mystery] But it's the known original engine, a 292 L6 [1968] in a '68 C/10 Stepside w/SM465.
The upper listed engine I pulled out of a C/20 longbed stepside ex-Forest Service truck in a junkyard in Tucson in 1977. Coincidence they were built a year and a day apart.
The engine stamp is F0113TCL which would indicate a Jan 13 assembly date which is consistent with the Jan casting date.
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Old 07-08-2014, 04:44 PM   #17
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Re: Chevy Six Cylinder Casting Numbers

Should also mention that my truck was supposedly a Forest service truck before it was transferred to a NM Fire district.
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Old 07-08-2014, 10:20 PM   #18
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Re: Chevy Six Cylinder Casting Numbers

Quote:
Originally Posted by Carl Spangler View Post
That database is missing casting # 3994257
I have that same block casting. I used the number stamped on the engine pad next to the distributor and the LMC truck parts 1967-1972 catalog has it identified as a 1971 or 1972 250ci from a truck.

There is also a date casting on mine that confirms conveyor #2 an 1971.

I would feel better if I could find another source to verify the info.
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Old 07-09-2014, 07:39 AM   #19
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Re: Chevy Six Cylinder Casting Numbers

Quote:
Originally Posted by Lugnutz65 View Post
I have that same block casting. I used the number stamped on the engine pad next to the distributor and the LMC truck parts 1967-1972 catalog has it identified as a 1971 or 1972 250ci from a truck.

There is also a date casting on mine that confirms conveyor #2 an 1971.

I would feel better if I could find another source to verify the info.
Doing a web search for "3994257" brings up multiple hits referencing that block # to early 70's chevy/GM trucks.

cheers
JohnG
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