- Duramax Engine Serial Number Location
- Engine Serial Number Location 95 Sportster
- Engine Serial Number Location Gm
ENGINES MANUFACTURED JUNE 1, 2012 AND AFTER. Engine Serial Number Rule (7 digits) Starting June 1, 2012 the engine serial number will have 7 digits (currently 6 digits) and will be completely unique. This means that the engine serial numbers are mutually exclusive regardless of production plant. Stamped Engine Serial Number e.g. Standard Engine Serial Number.
VIN Code Format | Camaro Specific Engine Codes | Small Block Suffix Codes
General Decoding Information
This topic can be somewhat confusing, especially with the amount of information available and the interpretation of it. The primary pieces of information you'll decode are the Engine Code and Partial VIN. You can decode the casting number. And you can check dates. The engine code and partial vin # will accurately nail down whatever the thing is rather quickly, and the other information will fall into line with that.
This topic can be somewhat confusing, especially with the amount of information available and the interpretation of it. The primary pieces of information you'll decode are the Engine Code and Partial VIN. You can decode the casting number. And you can check dates. The engine code and partial vin # will accurately nail down whatever the thing is rather quickly, and the other information will fall into line with that.
To QUICKLY IDENTIFY A CHEVY ENGINE CLICK HERE - for decoding engine codes.
Internet download manager fake serial number fix. This page has basic information on it, but it's a portion of the Small Block Chevy numbers information. The Engine Code page is where this topic is further detailed.
'Numbers Matching'
This is my opinion, and the generally accepted norm:
When people say 'It's numbers matching' - what they mean is the engine (or other component, i.e the transmission) can be MATCHED to the vehicle it was originally used in. This match is done via the PARTIAL VIN stamp on the component. The partial VIN will match the vehicles VIN. If it does - it's 'numbers matching', otherwise - it's not. done. end of story.
Some folks use these terms loosely, or will say 'numbers correct' or something to that effect. But numbers correct is not numbers matching. Again, it either matches or it doesn't. If it doesn't match - is it correct?
Numbers matching is important when you're trying to decode a Z28 or Super Sport where the VIN won't identify the vehicle as such. You need to decode the engine and see if it matches the vehicle, and if the code signifies Z28 or SS equipment.
Lastly, in extreme cases, you'll want to verify the numbers stamped onto the component were the ones stamped into it originally and aren't restamped.
The point of this article is to help you figure out how to decode stuff.
This is my opinion, and the generally accepted norm:
When people say 'It's numbers matching' - what they mean is the engine (or other component, i.e the transmission) can be MATCHED to the vehicle it was originally used in. This match is done via the PARTIAL VIN stamp on the component. The partial VIN will match the vehicles VIN. If it does - it's 'numbers matching', otherwise - it's not. done. end of story.
Some folks use these terms loosely, or will say 'numbers correct' or something to that effect. But numbers correct is not numbers matching. Again, it either matches or it doesn't. If it doesn't match - is it correct?
Numbers matching is important when you're trying to decode a Z28 or Super Sport where the VIN won't identify the vehicle as such. You need to decode the engine and see if it matches the vehicle, and if the code signifies Z28 or SS equipment.
Lastly, in extreme cases, you'll want to verify the numbers stamped onto the component were the ones stamped into it originally and aren't restamped.
The point of this article is to help you figure out how to decode stuff.
Engine Code Stamping Numbers
All engines are stamped with an engine ID code, consisting of assembly plant code, production date and suffix code. V8 codes are stamped on a pad just forward of the right side (passenger) cylinder head. 6 cylinder engines are stamped on the passenger side of the block behind the distributor.
Click here for Chevy Engine Code Listings
All engines are stamped with an engine ID code, consisting of assembly plant code, production date and suffix code. V8 codes are stamped on a pad just forward of the right side (passenger) cylinder head. 6 cylinder engines are stamped on the passenger side of the block behind the distributor.
Click here for Chevy Engine Code Listings
Duramax Engine Serial Number Location
The engine date must precede the car build date, otherwise something is amiss. Some engine machining operations (decking) will obliterate the engine ID.
Engine ID Code Example: V0101CLJ - (V = Plant, 01 = Month, 01 = Day, CLJ = Engine Suffix Code)
Another example: T0830CTY - (T = Tonawanda, 08 = August, 30 = 30th day, CTY = 1970 396 Camaro, 375 hp, 11.0:1, TH400)
Another example: T0830CTY - (T = Tonawanda, 08 = August, 30 = 30th day, CTY = 1970 396 Camaro, 375 hp, 11.0:1, TH400)
Code | Engine Plant | Code | Engine Plant |
F | Flint (Motor) | S | Saginaw Service |
H | Hydramatic | T | Tonawanda |
K | St. Catherines, Ontario | V | Flint (Engine) |
(McKinnon Industries Canada) | |||
M | GM of Mexico |
VIN Code Format
The vin code format is stamped onto most engines. The format consists of divisional identification number, model year, assembly plant designation and vehicle serial or sequence number.
In 68-69 model cars, the serial (VIN) number of the car the engine was installed in is stamped next to, or under the engine code ID.
Starting in 1970, the serial number is stamped either above the oil filter, somewhere on the block pad (in front of the cylinder head), or on the transmission flange somewhere. Chevrolet issued technical service bulletins to indicate which engines were to recieve a vin stamp, so who knows what could have happend (or not happened).
The vin code format is stamped onto most engines. The format consists of divisional identification number, model year, assembly plant designation and vehicle serial or sequence number.
In 68-69 model cars, the serial (VIN) number of the car the engine was installed in is stamped next to, or under the engine code ID.
Starting in 1970, the serial number is stamped either above the oil filter, somewhere on the block pad (in front of the cylinder head), or on the transmission flange somewhere. Chevrolet issued technical service bulletins to indicate which engines were to recieve a vin stamp, so who knows what could have happend (or not happened).
VIN code format Example: 13N100001
(1 = Chevrolet, 3 = 1973, N = Norwood, 100001 = Production sequence of vehicle VIN)
(1 = Chevrolet, 3 = 1973, N = Norwood, 100001 = Production sequence of vehicle VIN)
For a list of assembly plants, click here.
Engine Serial Number Location 95 Sportster
Casting ClockOn some Saginaw blocks, intakes and exhausts a 'clock' was cast into the block. The clock is a circle of 10 dots, one dot for each hour of a shift (usually 10 hour shifts). An arrow points to the beginning of the shift an another dot outside the circle indicates what time of day the cast part was made. Anyways, that's what that circle thing is (if you happen to see it on something). Casting Date
Small block casting date is located on driver side rear of block on flange forward of bellhousing. Big block on the right side of engine above the oil pan rails.
Casting Date Example: E038 - (E = Month, 03 = Day, 8 = Last digit of model year (1978)).
Month: A = Jan, B = Feb, C = Mar, D = Apr, E = May, F = Jun, G = July, H = Aug, I = Sep, J = Oct, K = Nov, L = Dec
General Engine Block Specifications While 6 different bore size blocks have been produced, the small block engine can be classified into 3 bore sizes and 3 main bearing sizes. 283 blocks (3.875' bore, 2.3' main), 302/327/350 blocks (4' bore, 2.3' or 2.45' mains), and 400 blocks (4.126', 2.65' mains). In 1968 the main bearing saddles were increased in size from 2.3' to 2.45'.
Notes: 2 bolt ONLY means just that,. otherwise 2 or 4 bolt can mean either design.. |
Chevy Small Block - Engine Block Casting Numbers
Notes (for below): 'High Power' is the maximum rate HP this block was used for, 'Low Power' is the lowest rated horsepower RPO engine the block was used in. 'Main Caps' is the number of bolts holding the cap. A 'two-bolt' main, or a four-bolt main. Four bolt main blocks are desirable in high performance applications because the extra strength of the additional bolts keeps the bottom end rigid and less prone to failure. However, a properly prepared 2 bolt main engine will work just fine (often times you'll lose a rod bolt before you break a crank because it's 'only' a 2 bolt main).Years | Casting | CID | Low Power | High Power | Main Caps | Comments | |
1980-85 | 140029 | 350 | - | - | 2 | car | |
1973-80 | 330817 | 400 | 150 | 180 | 2 | car, truck | |
1975 | 355909 | 262 | 110 | 110 | 2 | car, truck | |
1976-85 | 355909 | 305 | - | - | 2 | A | |
1975 | 360851 | 262 | - | - | 2 | Monza | |
1976-79 | 361979 | 305 | - | - | 2 | car, truck | |
1978-86 | 366245 | 350 | - | - | - | car | |
1982-86 | 366286 | 350 | - | - | 4 | Chevrolet, siamese | |
1982 | 366299 | 350 | - | - | 4 | Chevrolet, aluminium | |
1956-67 | 383810 | 283 | - | - | 2 | - | |
1967-68 | 389257 | 302 | - | - | 2 | Z-28 | |
1968-73 | 391436 | 307 | - | - | 2 | - | |
1965-67 | 393288 | 283 | - | - | 2 | car, truck | |
1976-79 | 460776 | 305 | - | - | 2 | car, truck | |
1976-79 | 460777 | 305 | - | - | 2 | car | |
1978-79 | 460778 | 305 | - | - | 2 | car, truck | |
1979-82 | 471511 | 267 | - | - | 2 | car, truck | |
1976-85 | 581671 | 305 | - | - | 2 | A | |
1985-94 | 1489363 | 350 | - | - | 2 | - | |
1979-82 | 2135412 | 267 | - | - | 2 | - | |
1979-82 | 2404929 | 267 | - | - | 2 | ||
1973-76 | 3030817 | 400 | - | - | 2 | car, truck | |
1958-61 | 3556519 | 283 | - | - | 2 | car, truck | |
1955 | 3703524 | 265 | 195 | _ | 2 | car, no filter | |
1955-56 | 3720991 | 265 | 195 | 225 | 2 | car, truck | |
1957 | 3731548 | 283 | 220 | 283 | 2 | - | |
1956-67 | 3736935 | 283 | - | - | 2 | - | |
1957-59 | 3737739 | 283 | 220 | 290 | 2 | car, truck | |
1958-62 | 3756519 | 283 | 170 | 315 | 2 | car, truck | |
1956-67 | 3756935 | 283 | - | - | 2 | - | |
1962-65 | 3782870 | 327 | 250 | 375 | 2 | car, truck | |
1956-67 | 3789187 | 283 | - | - | 2 | - | |
1962-67 | 3789817 | 327 | 210 | 275 | 2 | car, truck | |
1961-62 | 3789935 | 283 | 170 | 315 | 2 | Late 61 car & vette | |
1962-67 | 3790721 | 283 | 170 | 220 | 2 | Chevy II | |
1964-67 | 3791362 | 327 | 250 | 300 | 2 | Replaced 3790721 | |
1958-63 | 3794226 | 283 | 170 | 195 | 2 | Car & truck | |
1968-69 | 3794460 | 327 | 250 | 250 | 2 | truck | |
1968-69 | 3814660 | 327 | - | - | 2 | F A | |
1968-69 | 3814660 | 302 | - | - | 4 | Camaro, Z-28 | |
1963 | 3830944 | 327 | - | 300 | 2 | - | |
1956-67 | 3832338 | 283 | - | - | 2 | - | |
1964-66 | 3834810 | 283 | 195 | 220 | 2 | Car, truck & marine | |
1962-63 | 3834812 | 283 | 170 | 195 | 2 | car & truck | |
1958-62 | 3837739 | 283 | - | - | 2 | - | |
1964-68 | 3849852 | 283 | 195 | 220 | 2 | car & truck | |
1956-67 | 3849859 | 283 | - | - | 2 | - | |
1956-67 | 3849935 | 283 | - | - | 2 | - | |
1964-67 | 3858174 | 327 | - | - | 2 | car, truck | |
1968-76 | 3855961 | 350 | - | - | 2 | car | |
1964-67 | 3858174 | 327 | 275 | 350 | 2 | Full, A & Y | |
1964-67 | 3858180 | 327 | 250 | 300 | 2 | - | |
1962-67 | 3858190 | 327 | - | - | 2 | - | |
1965-67 | 3862194 | 283 | 195 | 220 | 2 | Chevy II | |
1962-66 | 3864812 | 283 | 230 | - | 2 | car, truck | |
1964-67 | 3868657 | 327 | 300 | - | 2 | ||
1962-67 | 3876132 | 327 | - | - | 2 | ||
1963 | 3889935 | 283 | - | - | 2 | truck | |
1967 | 3892657 | 302 | 290 | 290 | 2 | Z-28, small journal | |
1967 | 3892657 | 327 | 210 | 350 | 2 | car & truck | |
1967 | 3892657 | 350 | 295 | 295 | 2 | Camaro | |
1968-69 | 3892659 | 327 | 210 | - | 2 | ||
1967 | 3896944 | 283 | 195 | 195 | 2 | replaced by 307 in 68 | |
1967 | 3896948 | 283 | 195 | 195 | 2 | identical to 3834810 | |
1967 | 3903352 | 327 | 210 | 350 | 2 | cars only | |
1969-80 | 3911460 | 350 | - | - | 2 | A | |
1968-73 | 3914635 | 307 | - | - | 2 | car | |
1968 | 3914636 | 307 | 200 | 200 | 2 | car & truck | |
1968-69 | 3914638 | 327 | - | - | 2 | ||
1968-73 | 3914653 | 307 | - | - | 2 | A | |
1968 | 3914660 | 327 | 210 | 300 | 2 | cars | |
1968 | 3914678 | 302 | 290 | 290 | 2/4 | Camaro, Z-28 | |
1968 | 3914678 | 327 | 210 | 350 | 2 | car & truck | |
1968 | 3914678 | 350 | 295 | 295 | 2 | Camaro/ChevyII | |
1965-67 | 3932288 | 283 | - | - | 2 | A | |
1956-67 | 3932338 | 283 | - | - | 2 | ||
1974-75 | 3932368 | 350 | - | - | 2 | ||
1969-73 | 3932371 | 307 | - | - | 2 | car,truck | |
1969-73 | 3932373 | 307 | - | - | 2 | car,truck | |
1969 | 3932386 | 302 | 290 | 290 | 4 | Camaro Z28 | |
1969 | 3932386 | 327 | 210 | 210 | 2 | Camaro | |
1969 | 3932386 | 350 | 300 | 350 | 4 | ||
1969 | 3932388 | 302 | 290 | 290 | 4 | Z28 | |
1969 | 3932388 | 350 | 300 | 300 | 4 | cars | |
1968-69 | 3933100 | 327 | - | - | 2 | ||
1968-69 | 3933180 | 327 | - | - | 2 | ||
1968 | 3941174 | 307 | - | - | 2 | truck | |
1956-67 | 3949852 | 283 | - | - | 2 | ||
1970-80 | 3951509 | 400 | 150 | 265 | 2/4 | car,truck | |
1970-73 | 3951511 | 400 | 255 | 265 | 4 | B & G body | |
1962-67 | 3953512 | 327 | - | - | 2 | ||
1968-69 | 3955618 | 327 | - | - | 4 | A,F,Vette | |
1969 | 3956618 | 302 | 290 | 290 | 4 | Z28 | |
1969 | 3956618 | 327 | 235 | 235 | 2 | fullsize | |
1969 | 3956618 | 350 | 250 | 350 | 2/4 | cars | |
1969 | 3956632 | 307 | 200 | 200 | 2 | car & truck | |
1969-76 | 3958618 | 350 | - | - | 2 | A | |
1962-63 | 3959512 | 327 | 250 | - | 2 | ||
1956-67 | 3959532 | 283 | - | - | 2 | ||
1968 | 3970010 | 327 | - | - | 2 | A | |
1969-79 | 3970010 | 350 | 185 | 370 | 2 or 4 | car, truck, Vette | |
1970-73 | 3970014 | 350 | 200 | 300 | 2/4 | LA built Camaro | |
1969-73 | 3970020 | 307 | 115 | 200 | 2 | car,truck | |
1969-72 | 3970024 | 307 | 130 | 200 | 2 | A,F,X | |
1968-76 | 6259425 | 350 | - | - | - | car,truck | |
1980-84 | 14010201 | 305 | - | - | 2 | car,truck | |
1980-84 | 14010202 | 305 | - | - | 2 | car,truck | |
1980-84 | 14010203 | 305 | - | - | 2 | car, truck | |
1980-82 | 14010205 | 267 | - | - | 2 | - | |
1980-85 | 14010207 | 350 | - | - | 4 | truck | |
1980-85 | 14010209 | 350 | - | - | 4 | truck | |
1978-86 | 14010231 | 305 | - | - | 2 | - | |
1979-82 | 14010280 | 267 | - | - | 2 | car | |
1982 | 14011064 | 350 | - | - | 4 | Chevrolet, high tin | |
1979-82 | 14016375 | 267 | - | - | 2 | - | |
1979-82 | 14016376 | 267 | - | - | 2 | car | |
1978-85 | 14016379 | 350 | - | - | - | car, truck | |
1980-84 | 14016381 | 305 | - | - | 2 | car, truck | |
1978-88 | 14016383 | 305 | - | - | 2 | - | |
1979-82 | 14040205 | 267 | - | - | 2 | - | |
1978-86 | 14049047 | 305 | - | - | 2 | ||
1986-94 | 14079287 | 350 | - | - | - | ||
1987 | 14088526 | 350 | - | - | 2 | Camaro | |
1986-94 | 14088548 | 350 | - | - | - | - | |
1986-92 | 14088551 | 305 | - | - | 2 | - | |
1988-94 | 14093627 | 305 | - | - | 2 | - | |
1986-94 | 14093638 | 350 | - | - | - | ||
1988-94 | 14094766 | 305 | - | - | 2 | ||
1986-94 | 14101148 | 350 | - | - | - | ||
1987-88 | 14102058 | 305 | - | - | 2 | ||
1969-85 | 14316379 | 350 | - | - | 2 |
Camaro Engine Code Stamping Numbers
Dropbox contains Camaro engine suffix codes for year selected.
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Engine Serial Number Location Gm
Author: MadMike Maciolek Return to Main Decoding Page North Georgia Classic Camaro All rights reserved |