Reading SBC engine code stamped on front of block

[73c20jim]

T0412CSK


According to what I have found

The suffix CSK converts to 1973 400 CID 175HP 2 bbl carb auto trans

That's reasonable.

The first letter is the plant that made it - T for Tonawanda.

Good so far.

The four numbers after the T is the month and year the engine was made. 0412

DOES NOT COMPUTE!

Could that be 0472 - April 1972

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[73c20jim]

@Keith Seymore

Can you help??? Is 12 the code for 1972?

 

[Tyger13us]

could even be part of the vin #..
the block casting # would be more help..
i have some SBC casting numbers.........

 

[Tyger13us]

Small Block Chevy Engine Block Indentification

CID YEAR BORE MAIN CAP
262 1975 3.671 2 bolt ONLY
267 1979 - 81 3.500 2 bolt ONLY
305 1976 - 96 3.736 2 bolt ONLY
307 1968 - 73 3.875 2 bolt ONLY
327 1968-69 4.001 (2.3" main) 2 bolt
350 1968-88 4.001 (2.3" main) 2 bolt
265 1994 4.001 (2.45" main) 2 bolt
302 1968-69 4.001 (2.45" main) 4 bolt
350 1968-96 4.001 (2.45" main) 4 bolt
400 1970-72 4.126 (2.65" main) 4 bolt
400 1973-80 4.126 (2.65" main) 2 bolt



YEARS CASTING CID LOW POWER HIGH POWER MAIN CAPS COMMENTS
1980-85 140029 350 - - 2 car
1973-80 330817 400 - - 2 car, truck
1975 355909 262 - - 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 283 230 315 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
1961-64 3789935 283 230 315 2 car, truck, Vette
1966-67 3790721 283 - - 2 Chevy II
1964-67 3791362 327 300 300 2 Chevy II
1958-62 3794226 283 220 220 2 truck
1968-69 3794460 327 250 250 2 truck
1968-69 3814660 327 - - 2 F A
1968-69 3814660 302 - - 4 Camaro, Z-28, Vette
1956-67 3832338 283 - - 2 -
1956-67 3834812 283 - - 2 -
1958-62 3837739 283 - - 2 -
1957-66 3849852 283 220 - 2 car, truck
1956-67 3849859 283 - - 2 -
1956-67 3849935 283 - - 2 -
1964-67 3852174 327 - - 2 car, truck
1968-76 3855961 350 - - 2 car
1964-67 3858174 327 300 - 2 A
1964-67 3858180 327 250 - 2 -
1962-67 3858190 327 - - 2 -
1966-67 3862194 283 - - 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
1962-67 3892657 327 - - 2 car, truck
1967 3892657 302 290 -
Z-28, small journal
1968-69 3892659 327 210 - 2
1962-66 3896944 283 230 - 2
1965-67 3896948 283 - - 2
1964-67 3903352 327 250 - 2
1969-80 3911460 350 - - 2 A
1968-73 3914635 307 - - 2 car
1968-73 3914636 307 - - 2 car, truck
1968-69 3914638 327 - - 2
1968-73 3914653 307 - - 2 A
1968-69 3914660 327 250 - 2 truck
1968-69 3914678 302 290 - 2/4 Camaro, Z-28
1968-69 3914678 327 210 295 4 car, truck
1968 3914678 350 210 295 4 cars
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
1968-69 3932386 350 300 350 4 LT1,4
1968 3932386 327 - - 2 A
1969 3932386 302 290 - 4 Camaro,Z28
1969-76 3932388 350 165 300 2 car,truck
1968-69 3933100 327 - - 2
1968-69 3933180 327 - - 2
1968 3941174 307 - - 2 truck
1956-67 3949852 283 - - 2
1973-80 3951509 400 - - 2 car,truck
1970-73 3951511 400 - - 4 truck
1962-67 3953512 327 - - 2
1968-69 3955618 327 - - 4 A,F,Vette
1969 3956618 302 290 - 4 Z28
1969-79 3956618 350 165 350 4 car, truck, vette
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
1968-76 3970014 350 - - 2 car,truck
1969-73 3970020 307 - - 2 car,truck
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

 

[legopnuematic]

I believe that would be April 12 1973.
T-Tonawanda
04-April
12-12th day
CSK- 1973, 400ci, turbo hydromatic trans, LE2 U, 175hp, 2bbl.

 

[73c20jim]

I believe that would be April 12 1973.
T-Tonawanda
04-April
12-12th day
CSK- 1973, 400ci, turbo hydromatic trans, LE2 U, 175hp, 2bbl.

Thanks. I think you nailed it.

 

[legopnuematic]

Interestingly I decided to look at the code on the 400sb I have in my possession. It is stamped April 13 1970 one day off from being exactly three years apart from yours. Also from Tonawanda.

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