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

Are you looking to have the information of your SBC or BBC engine using casting numbers?

I’ve got you covered.

Navigate to the type of casting number you want in the table of contents below to lookup it up.

Chevy Engine ID Numbers

All Chevrolet engines produced since the 1950s have identification numbers stamped on the engine block or cylinder heads that provide information about the engine such as year, displacement, and factory. These numbers are essential for identifying parts and getting the correct specifications.

GM Block Casting Numbers

The block casting number is stamped on the left front of the engine block, usually above the vibration damper. It consists of 3-8 numbers or letters that indicate the manufacturer, displacement, and date. Common GM block prefixes include:

     

      • V codes (e.g. VIN code) for small block V8s

      • Y codes for small straight-6 and inline engines

      • Z codes for big block V8s

    Old Engine ID Numbers

    Later engines may have additional codes providing details like:

       

        • Assembly plant code (usually 1-4 digits after casting number)

        • Displacement code (letters after casting number for engines like LS1, LT1)

        • Crankshaft type code (1-2 letters/numbers for forged, cast, etc.)

      To determine engine specs, research the full identification number online using our dataset below.

      Read More: GM/Chevy Serial Number Lookup

      Chevy Small Block Casting Numbers Lookup

      Type your engine block casting number in the SEARCH BOX below. E.g. 14102058

      Leave a comment at the end of this post if you cannot find the information you want or check out or post specifically for SBC and BBC engine code stamping numbers.

      Casting Number C.I.D. Years Notes
      14316379 350 68-88 Car & Truck 2-bolt Passenger stick 1-piece seal
      14102058 305 86-88 Car & Truck 2-bolt Passenger stick 1-piece seal
      14101148 350 86-up 2 & 4-Bolt Passenger stick 1-Piece seal Roller cam
      14101147 305 86-up 2-bolt Passenger stick one piece seal
      14094766 305 86-up 2-bolt Passenger stick one piece seal
      14093638 350 87-95 Car & Truck 2 & 4-bolt Passenger stick 1-piece seal
      14093627 305 87-88 Car & Truck 2-bolt Passenger stick 1-piece seal
      14088551 305 86-88 Car & Truck 2-bolt Passenger stick 1-piece seal
      14088548 350 86-88 2-bolt Truck Passenger stick 1-piece seal
      14088526 350 87-89 2-bolt Roller cam Passenger stick 1-piece seal
      14079287 350 86-90 2-bolt Passenger stick one piece seal
      14016383 305 80-85 2-bolt Truck
      14016382 305 80-85 2-bolt Passenger stick
      14016381 305 76-85 car & Truck 2-bolt Passenger stick After 79
      14016379 350 77-79 2 & 4-Bolt
      14016379 267 77-79 2-bolt dipstick in pan
      14016376 267 80-82 2-bolt Passenger stick
      14011148 350 87-89 2 & 4-Bolt Roller cam one piece seal
      14011064 350 80-85 4-bolt Passenger stick
      14010287 350 80-82 2-bolt Passenger stick
      14010280 267 80-82 car & Truck 2-bolt Passenger stick
      14010209 350 80-85 car & Truck 2 & 4-Bolt Passenger stick
      14010207 350 80-85 car & Truck 2 & 4-Bolt Passenger stick
      14010205 267 80-82 car & Truck 2-bolt Passenger stick
      14010203 305 80-85 car & Truck 2-bolt Passenger stick
      14010202 305 80-85 car & Truck 2-bolt Passenger stick
      14010201 305 80-85 car & Truck 2-bolt Passenger stick
      12577184 365 98 & UP Gen III 6.0L Iron Block. LQ-4 and LQ-9
      12573581 365 98 & UP Gen III 6.0L Iron Block. LQ-4 and LQ-9
      12562174 350 97-up Crossbolted LS-1 Aluminum
      12561358 293/325 99 & UP Gen III 4.8L and 5.3L Iron Block.
      12561168 350 97-up Crossbolted LS-1 Aluminum
      12560629 350 97-up Crossbolted LS-1 Aluminum
      12560621 350 97-up Crossbolted LS-1 Aluminum
      12559846 350 97-up Crossbolted LS-1 Aluminum
      12559378 350 97-up Crossbolted LS-1 Aluminum
      12551364 365 98 & UP Gen III 6.0L Iron Block. LQ-4 and LQ-9
      12550592 350 97-up Crossbolted LS-1 Aluminum
      10243880 350 96-up 2 & 4-Bolt Vortec Roller
      10243878 305 96-up 2-bolt Vortec Roller
      10199001 350 93-95 4-bolt LT-5 ZR-1
      10168588 265 94-96 2-bolt LT-1 Reverse cooling
      10153558 350 91-92 4-bolt LT-5 ZR-1
      10134996 400 4-bolt Bowtie Aluminum 400 Mains/Bore
      10125327 350 93-up Camaro/firebird 2 & 4-bolt LT-1 Reverse cooling Roller cam
      10090511 350 90 4-bolt LT-5 ZR-1
      10066038 350 2 & 4-Bolt Mexico cast Crate engine
      10066036 350 86-up Car & Truck 2 & 4-bolt Passenger stick 1-piece seal
      10054727 350 86-up Car & Truck 2-bolt Passenger stick 1-piece seal
      10051184 350 86-up Car & Truck 2 & 4-bolt Passenger stick 1-piece seal
      10051182 350 Car and Truck 2 & 4-bolt 1 Piece Seal Passenger stick
      10036033 350 4-bolt Mexico cast Crate engine
      3992386 327 68-69 car & Truck Large journal 2-Bolt
      3970024 307 69-73 car & Truck 2-bolt
      3970020 307 69-73 car & Truck 2-bolt
      3970014 350 68-79 car & Truck 2 & 4-Bolt
      3970010 302/350 69-79 car & Truck 2 & 4-Bolt Most common
      3959512 327 62-63 2-bolt
      3956632 307 69-73 car & Truck 2-bolt
      3956618 302/327/350 68-79 2 & 4-Bolt
      3951511 400 70-80 car & Truck 2 & 4-Bolt 3-freeze plugs
      3951509 400 70-80 car & Truck 2 & 4-Bolt 2-freeze plugs
      3933180 327 68-69 car & Truck Large journal 2-Bolt
      3932442 350 67 2-bolt Camaro
      3932388 350 68-79 car & Truck 4-Bolt
      3932386 302-327-350 68-74 2 & 4-Bolt
      3932373 307 69-73 car & Truck 2-bolt
      3932371 307 69-73 car & Truck 2-bolt
      3931174 307 68 2-bolt Truck
      3914678 302/327/350 68-79 car & Truck 2-bolt
      3914660 327 68-69 car & Truck 2-bolt
      3914653 307 68 2-bolt
      3914638 327 68 2-bolt
      3914636 307 68-73 car & Truck 2-bolt
      3914635 307 68-73 car & Truck 2-bolt
      3903352 327 67 2-bolt
      3896948 283 66-67 2-bolt
      3896944 283 67 2-bolt
      3892659 327 68-69 2-bolt Large journal
      3892657 302/327/350 64-67 car & Truck 2-bolt
      3864812 283 62-67 car & Truck 2-bolt
      3862194 283 65-67 2-bolt Chevy II Nova Recessed filter
      3858618 350 68-76 2 & 4-Bolt
      3858180 327 64-67 2-bolt
      3858174 327 64-67 car & Truck 2-bolt
      3849935 283 65-67 2-bolt
      3849859 283 57-66 car & Truck 2-bolt
      3849852 283 57-66 car & Truck 2-bolt
      3837739 283 58-62 2-bolt
      3834812 283 62-63 2-bolt
      3834810 283 65-67 car & Truck 2-bolt
      3830944 327 63 2-bolt
      3814660 327 68-69 2-bolt
      3794460 327 68-69 2-bolt
      3794226 283 57-63 2-boltTruck
      3792582 283 64-65 2-bolt
      3792563 327 65 2-bolt
      3791363 327 66-67 2-bolt Chevy II Nova Recessed filter
      3791362 327 66-67 2-bolt Chevy II Nova Recessed filter
      3790721 283 62-64 2-bolt Chevy II Nova Recessed oil filter boss
      3789935 283 61-66 car & Truck 2-bolt
      3789817 327 62-67 2-bolt
      3782870 327 62-67 car & Truck 2-bolt
      3756519 283 58-62 2-bolt
      3737739 283 57-62 2-bolt
      3737737 283 57-62 2-bolt
      3731548 283 57 Car & Truck 2-bolt No side mount
      3720991 265 55-56 Car & Truck 2-bolt
      3703524 265 55 car & Corvette no oil filter 2-Bolt
      3556519 283 58-61 2-bolt
      471511 267 79-82 Car & Truck 2-bolt
      460778 305 76-79 2-bolt
      460777 305 76-79 Car & Truck 2-bolt
      460776 305 76-79 Car & Truck 2-bolt
      460703 350 78 4-bolt
      393288 283 65-67 2-bolt
      391436 307 68-73 2-bolt
      389257 302 67 2-bolt
      366299 350 82 Bowtie aluminum 4-bolt
      366287 350 82 Bowtie aluminum 4-bolt siamesed
      366286 350 82 Bowtie aluminum 4-bolt siamesed
      366245 350 78-82 Bowtie High tin 4-bolt
      361979 305 76-79 car & Truck 2-bolt
      360851 262 75-76 2-bolt
      355909 262/305 75-79 car & Truck 2-bolt
      330817 400 70-80 Car & Truck 2 & 4-bolt 3-freeze plugs

      Chevy Big Block Casting Numbers Lookup

      Type your engine block casting number in the SEARCH BOX below. E.g. 24502572

      Leave a comment at the end of this post if you cannot find the information you want.

      Casting Number C.I.D. Years Notes
      24502572 454 4-Bolt DRCE-2 Olds “9.5”” deck”
      24502504 454 4-Bolt Gen-5 Bowtie Short deck
      14096859 502 4-Bolt Gen-5
      14044807 454 4-Bolt IV Bowtie Tall deck
      14015543 454 87-90 4-Bolt Gen-5
      14015445 454 75-90 Car & Truck
      12556110 496 01-up 4-Bolt Vortec 8100 Gen-7
      12550313 454 91-95 4-Bolt Gen-5
      10237300 502 96-up 4-Bolt 4.466 bore Gen-6
      10237297 454 96-up 4-Bolt Vortec 7400 Gen-6
      10185050 454 4-Bolt Gen-5 Bowtie Short deck
      10134366 454 4-Bolt Gen-5 Bowtie Tall deck
      10114184 427 91-95 Truck Gen-5
      10114183 366 91-95 Truck Gen-5
      10114182 454 91-95 4-Bolt Gen-5
      10069284 427 Truck
      10068286 454 90-91 4-Bolt IV Short deck
      10051107 454 4-Bolt Bowtie IV Short deck
      6272181 427 73-76 Truck
      6272177 402 72 2-bolt
      6272176 366 68-76 Truck
      3999294 427 68-84 Truck Tall deck
      3999293 366 68-85 Truck Tall deck
      3999290 402 72 2-bolt
      3999289 454 72-78 Car & Truck 2-Bolt
      3995623 409 61
      3969858 427 68-84 Truck Tall deck
      3969854 396/402/454 69-72 2 & 4-Bolt
      3969852 366 68-84 Truck
      3965449 396 68-72
      3965440 396 68-69
      3963513 454 73-76
      3963512 427/454 69-71 2 & 4-Bolt COPO
      3955276 427 68-84 Truck Tall deck
      3955274 366 68-85 Truck Tall deck
      3955272 396/402 69 2 & 4-Bolt
      3955270 427 69 2 & 4-Bolt
      3946053 427 97 ZL-I Aluminum 4-Bolt 2nd design
      3946052 427 69 ZL-I Aluminum 4-Bolt
      3937726 427 68-84 Truck Tall deck
      3937724 366 68-85 Truck Tall deck
      3935440 396 68-69 2 & 4-Bolt
      3935439 427 68-69 2 & 4-Bolt
      3925521 366 68-85 Truck Tall deck
      3918319 366 66-70 Truck
      3916323 396 68 2 & 4-Bolt
      3916321 427 68 2 & 4-Bolt
      3916319 366 68-85 Truck Tall deck
      3904354 366 66-67 Truck Tall deck
      3904351 427 67 2 & 4-Bolt
      3902466 396 65-67
      3902406 396 67 2 & 4-Bolt
      3873858 396 66 4-Bolt
      3869942 427 66-67 2 & 4-Bolt
      3860387 348 58
      3860386 409 62-64
      3857658 409 Marine
      3857656 409 65
      3857655 348 62-65 Truck
      3857651 409 Marine
      3855977 366 65-67 Truck Tall deck
      3855962 396 65-66 4-Bolt
      3855961 396 66-67 2-bolt
      3844422 409 64
      3839754 409 65
      3839752 409 62-63
      3830814 409 63
      3824553 366 66-67 Truck
      3815707 348 58-61
      3798962 348 62-65 Truck
      3795623 409 61
      3788068 409 62
      3782870 427 68-76 Truck Tall deck
      3782012 348 58-61
      3771705 348 59-61
      3755011 348 59-61
      3751872 348 58
      3732811 348 58
      3732755 348 59-61
      3716362 396
      473478 427 68-84 Truck Tall deck
      399293 366 77-78 Truck
      399289 454 73-79 2-bolt
      399204 509 70-71 4-Bolt Aluminum Can-AM
      364779 366 68-88 Truck Tall deck
      364776 427 68-84 Truck Tall deck
      361959 454 73-85 Car & Truck
      359070 454 74-90 Truck
      346236 454 74-76 2-bolt
      345014 454 74-86 Truck
      340220 427 72-76 Truck Tall deck

      Chevy Small Block Crankshaft Casting Numbers Lookup

      Type your crankshaft casting number in the SEARCH BOX below. E.g. 14088552

      Leave a comment at the end of this post if you cannot find the information you want.

      Casting Number C.I.D. Years Journals Stroke Notes
      14088552 350 86 & UP 2.45/2.10 3.48 Forged One piece seal
      14088535 305/350 86 & UP 2.45/2.10 3.48 Nodular Iron One piece seal
      14088532 350 86-88 2.45/2.10 3.48 Forged One piece seal
      14088526 305 1986 2.45/2.10 3.48 Nodular Iron One piece seal
      12552216 346 2.558/2.10 3.62 Cast LS-1 One Piece Seal
      10168568 265 2.45/2.10 3 Cast One Piece Seal
      10106122 350 90-95 2.76/2.10 3.66 Forged LT-5 ZR-1
      3951529 400 70-80 2.65/2.10 3.75 Nodular Iron
      3951130 327 2.45/2.10 3.25 Forged
      3949847 283 64-67 2.3/2.0 3 Nodular Iron
      3941188 350 2.45/2.10 3.48 Forged
      3941182 350 68-76 2.45/2.10 3.48 Forged
      3941178 302 68-69 2.45/2.10 3 Forged
      3941174 307/327 68-73 2.45/2.10 3.25 Nodular Iron
      3932442 305/350 69-85 2.45/2.10 3.48 Nodular Iron
      3923279 302 2.45/2.10 3 Forged
      3914672 327 2.45/2.10 3.25 Forged
      3911011 307/327 68-73 2.45/2.10 3.25 Nodular Iron
      3911001 307/327 68-73 2.45/2.10 3.25 Nodular Iron
      3892690 350 68-85 2.45/2.10 3.48 Forged
      3884577 327 2.30/2.00 3.25 Forged
      3876768 283 64-67 2.3/2.0 3 Nodular Iron
      3876764 283 64-67 2.3/2.0 3 Nodular Iron
      3849847 283 57-67 2.3/2.0 3 Forged
      3836266 265/283 56-63 2.3/2.0 3 Forged
      3835236 283 57-65 2.3/2.0 3 Forged
      3815822 265/283 55-67 2.3/2.0 3 Forged
      3814671 327 2.30/2.00 3.25 Forged
      3782680 327 62-67 2.3/2.0 3.25 Forged
      3735263 283 57-63 2.3/2.0 3 Forged
      3735236 265/283 55-67 2.3/2.0 3 Forged
      3734627 327 62-67 2.3/2.0 3 Forged
      3729449 265 55-57 2.3/2.0 3 Forged
      3727449 283 57-67 2.3/2.0 3 Forged
      354431 262 75-76 2.45/2.10 3.1 Nodular Iron
      330550 350 73-75 2.45/2.10 3.48 Forged
      310514 350 77-85 2.45/2.10 3.48 Nodular Iron
      4672 307/327 68-73 2.45/2.10 3.25 Nodular Iron
      4577 327 62-67 2.3/2.0 3.25 Nodular Iron
      3279 302 68-69 2.45/2.10 3 Forged
      2690 350 2.45/2.10 3.48 Forged
      2680 327 2.30/2.00 3.25 Forged
      1182 350 2.45/2.10 3.48 Forged
      1181 305/350 68-76 2.45/2.10 3.48 Nodular Iron
      1178 302 2.45/2.10 3 Forged
      1130 307/327 68-73 2.45/2.10 3.25 Nodular Iron

      Chevy Big Block Crankshaft Casting Numbers Lookup

      Type your crankshaft casting number in the SEARCH BOX below. E.g. 10114187

      Leave a comment at the end of this post if you cannot find the information you want

      Casting Number C.I.D. Years Journals Stroke Notes
      14097044 454/502 2.75/2.20 4 Forged One Piece Seal
      10114188 454 2.75/2.20 4 Cast One Piece Seal
      10114187 396 2.75/2.20 3.76 Cast
      10114186 427 2.75/2.20 3.76 Forged
      10051169 NA NA NA Raw Forged
      3993878 454 2.75/2.20 4 Forged
      3993804 NA NA NA Raw Forged crank
      3975945 454 2.75/2.20 4
      3975495 454 2.75/2.20 4
      3967463 454 70-88 2.75/2.20 4 Forged
      3967416 454 70-71 2.75/2.20 4 Forged
      3965753 NA NA NA Semi finished Forged
      3965746 NA NA NA Semi finished Forged crank
      3963524 454 70-72 2.75/2.20 4 Forged
      3963521 454 2.75/2.20 4 Forged Special performance
      3962523 454 2.75/2.20 4 Forged
      3904815 366/396/402/427 65-76 2.75/2.20 3.76 Nodular Iron
      3887114 396 2.75/2.20 3.76 Forged Special performance
      3882849 366/396/427 2.75/2.20 3.76 Forged
      3882842 366/396/427 2.75/2.20 3.76 Forged
      3882841 396 2.75/2.20 3.76 Forged
      3879621 427 2.75/2.20 3.76 Forged
      3874874 366/396/402/427 66-85 2.75/2.20 3.76 Forged
      3863144 366/396/402 68-85 2.75/2.20 3.76 Forged
      3863114 402 2.75/2.20 3.76
      3856223 396/402 65-71 2.75/2.20 3.76 Nodular Iron
      3838416 409 64-65 2.50/2.20 3.5 Forged
      3838416 409 2.50/2.20 3.5 Forged
      3837466 409/427 2.50/2.20 3.65 Forged Z-11Special performance
      3837466 409 1963 2.50/2.20 3.5 Forged Z-11
      3829027 409 2.50/2.20 3.5 Forged
      3829027 409 1963 2.50/2.20 3.5 Forged
      3824553 348 58-61 2.50/2.20 3.25 Forged
      3824553 348 2.50/2.20 3.25 Forged
      3815822 348 58-61 2.50/2.20 3.25 Forged
      3815822 348 2.50/2.20 3.25 Forged
      3804816 366/396/402/427 61-76 2.75/2.20 3.76 Nodular Iron
      3795589 409 61-62 2.50/2.20 3.5 Forged
      3795589 409 2.50/2.20 3.5 Forged
      3788072 409 1961 2.50/2.20 3.5 Forged
      3788072 409 2.50/2.20 3.5 Forged
      3741642 348 2.50/2.20 3.25 Forged
      3741642 348 59-61 2.50/2.20 3.25 Forged
      3741640 348 2.50/2.20 3.25 Forged
      3741640 348 59-61 2.50/2.20 3.25 Forged
      3733226 348 2.50/2.20 3.25 Forged
      3733226 348 1958 2.50/2.20 3.25 Forged
      3733223 409 62-65 2.50/2.20 3.5 Forged
      3733223 348 2.50/2.20 3.25 Forged
      3732692 348 2.75/2.20 4
      3732692 348 1958 2.50/2.20 3.25 Forged
      359730 454 2.75/2.20 4
      353638 454 2.75/2.20 4
      353039 454 70-88 2.75/2.20 4 Nodular Iron
      336782 454 2.75/2.20 4 Cast
      7463 454 2.75/2.20 4 Forged
      7416 454 70-88 2.75/2.20 4 Forged
      7115 366/396/402/427 65-76 2.75/2.20 3.76 Forged
      6223 366/396/402/427 68-76 2.75/2.20 3.76 Forged
      3524 454 2.75/2.20 4 Forged
      3521 454 70-88 2.75/2.20 4 Forged LS-6
      3520 454 2.75/2.20 4 Forged

      Chevy Exhaust Manifold Casting Numbers Lookup

      Type your exhaust manifold number in the SEARCH BOX below. E.g. 14094065

      Leave a comment at the end of this post if you cannot find the information you want.

      Casting Number Years Engine Side Notes
      14103207 87-91 305 & 350 LH
      14103206 87-91 305 & 350 RH
      14102018 89-94 305 & 350 RH
      14102016 88-94 305 & 350 RH
      14101054 87-88 305 & 350 RH
      14094065 85-88 350 RH
      14094064 87-92 305 & 350 RH
      14094063 87-92 305 & 350 LH
      14094045 87-90 305 & 350 LH
      14093682 87-90 305 & 350 RH
      14093660 87-90 305 & 350 RH
      14093658 88-94 305 & 350 RH
      14093655 87-90 305 & 350 LH
      14093654 87-90 305 & 350 RH
      14093653 87-90 305 & 350 LH
      14087512 86-91 350 RH
      14087511 86-91 350 LH
      14079296 85-86 305 & 350 RH
      14079295 85-86 305 & 350 LH
      14075611 83-86 305 LH
      14071200 83-86 305 RH
      14068670 85-88 350 RH
      14068667 85-88 350 LH
      14067365 77-86 267, 305, 350 & 400 LH
      14060633 81-86 305 & 350 LH
      14060630 81-86 350 RH
      14057030 84-85 350 RH
      14057029 84-85 350 LH
      14050287 82-86 305 LH
      14050282 83-87 305 & 350 RH
      14050233 83-86 305 & 350 LH
      14043373 82-86 305 LH
      14034075 81-86 305 & 350 LH
      14034069 81-86 350 RH
      14031376 81-86 350 RH
      14031361 82-86 305 RH
      14022625 80-81 305 LH
      14014500 79-86 267, 305 & 350 RH
      14014459 81-86 305 & 350 LH
      14014438 80-84 305 RH
      14014437 80-84 305 LH
      14007400 80-86 267 & 305 LH
      12550622 91 350 RH
      12550621 94 265 RH
      10433037 82-86 305 LH
      10207657 93 350 RH
      10207656 93-94 350 LH
      10168494 94 265 & 350 LH
      10166158 89-94 305 & 350 RH
      10166147 89-94 305 & 350 LH
      10166145 87-90 305 & 350 LH
      10166144 91-94 350 RH
      10128483 91-93 305 & 350 LH
      10128448 91-93 305 & 350 LH
      10108437 87-93 305 & 350 RH
      10092905 89-94 350 LH
      10092903 89-94 350 LH
      10092901 89-91 350 LH
      10055734 87-91 350 RH
      10046140 84-85 350 RH
      10046139 84-85 350 LH
      10046123 87-92 305 & 350 LH
      10045317 88-94 305 & 350 LH
      10045317 88-94 305 & 350 LH
      10045315 88-94 305 & 350 LH
      3998902 72-78 307 & 350 RH
      3997742 71-78 307 & 350 RH 2.0″ Outlet
      3994045 73-75 454 LH Police
      3989343 71-72 402 & 454 LH Chevelle, Camaro, Monte Carlo and Passenger
      3989310 71-72 402 & 454 RH Chevelle, Camaro, Monte Carlo and Passenger
      3989055 69-72 307, 350 & 400 LH
      3989043 70-73 307, 350 & 400 LH Chevelle, Camaro, Nova and Passenger 105, 115, 130, 145, 150, 165, 175, 185, 200, 245, 250, 255, 270 & 300 HP 2.0″ Outlet with and without A.I.R.
      3989041 69-74 302, 307, 327, 350 & 400 LH Camaro, Z-28 and Nova 115, 130, 145, 150, 160, 165, 170, 180, 185, 200, 210, 245, 250, 255, 290, 300, 330 & 360 HP 2.0″ Outlet with and without A.I.R.
      3989036 71-75 350 LH & RH Corvette and Passenger 165, 195, 200, 205 & 270 HP 2.0″ Outlet with and without A.I.R.
      3986330 69-73 302, 307, 327 & 350 RH Camaro and Z-28 200, 210, 245, 250, 255, 290, 300, 330 & 360 HP 1.9″ Outlet A.I.R.
      3973432 70-74 307, 350 & 400 RH Chevelle, Camaro, Nova and Passenger 115, 130, 150, 165, 170, 175, 180, 200, 245, 250, 255, 270 & 300 HP 2.0″ Outlet
      3969869 70-74 454 LH Corvette 270, 365 & 390 HP with and without A.I.R. LS-5
      3959562 72-74 307, 350 & 400 RH Chevelle, Camaro and Z-28 115, 130, 145, 150, 160, 165, 170, 175, 180, 185 & 245 HP 2.0″ Outlet A.I.R.
      3946826 69-70 302, 307, 327 & 350 RH Chevelle, Camaro, Z-28 and Nova200, 210, 250, 255, 290, 300 & 360 HP 1.9″ Outlet A.I.R.
      3942529 69-70 302, 307, 327, 350 & 400 LH Chevelle, Camaro and Nova 200, 210, 250, 255, 290 & 300 HP 2.0″ Outlet
      3942527 69-70 302, 307, 327 & 350 LH Chevelle, Camaro, Z-28 and Nova 200, 210, 250, 255, 290, 300 & 360 HP 2.0″ Outlet A.I.R.
      3940972 67 350 RH Camaro 295 HP
      3932481 69 350 RH Corvette
      3932473 69-70 327, 350 & 400 LH Passenger 235, 250, 255, 265 & 300 HP 2.0″ Outlet
      3932469 69-70 327 & 350 LH Passenger 235, 250, 255 & 300 HP 2.0″ Outlet
      3932465 69-70 327, 350 & 400 RH Passenger 235, 250, 255, 265, 300 & 350 HP 1.9″ Outlet
      3932461 69-74 327 & 350 LH & RH Corvette 190, 195, 200, 235, 255, 300, 330 & 350 HP 1.9″ Outlet A.I.R.
      3932376 69-70 307, 327, 350 & 400 RH Chevelle and Camaro 200, 210, 250, 255, 265 & 300 HP 1.9″ Outlet
      3916178 68-70 396, 427 & 454 RH Chevelle, Camaro, Nova and Passenger 325, 350, 375, 425, 430 & 450 HP COPO LS-5 & LS-6
      3914613 68-70 396 & 427 LH Passenger 265, 325, 335, 345, 390 & 425 HP
      3909880 67 396 RH Chevelle and Camaro 325, 350 & 375 HP
      3909879 67-70 396, 427 & 454 LH Chevelle, Camaro and Nova 325, 350, 375, 425, 430 & 450 HP LS-6 COPO
      3905364 69-72 307, 350 & 400 RH Truck
      3904399 66 396 LH
      3902401 67 396 LH Chevelle
      3896956 67-68 283 & 327 RH Truck
      3893608 67-68 283, 302, 307, 327 & 350 RH Chevelle, Camaro and Z-28 195, 200, 210, 250, 275, 290, 295 & 325 HP 1.9″ Outlet
      3893604 66-68 283 & 327 RH Passenger A.I.R.
      3892683 66-68 283, 302, 307, 327 & 350 LH Chevelle, Camaro and Z-28 195, 200, 210, 220, 250, 275, 290, 295 & 325 HP 2.0″ Outlet
      3892679 66-68 283, 302, 307, 327 & 350 LH Chevelle, Camaro and Z-28 195, 200, 210, 220, 250, 275, 290, 295 & 325 HP 2.0″ Outlet
      3892307 66-67 396 & 427 LH Passenger 325 & 390 HP
      3890424 64-67 283 & 327 RH Chevy II
      3887186 66 283 RH 220 HP 1.9″ Outlet
      3884504 66-67 396 & 427 RH Passenger 325, 385 & 390 HP
      3883999 66 396 LH Chevelle 325, 360 & 375 HP
      3883828 66 427 RH Passenger
      3883827 66 427 LH Passenger
      3880869 70-72 454 LH Corvette 365 & 425 HP with and without A.I.R. LS-5 & LS-6
      3880828 66-72 427 & 454 RH Corvette 270, 365, 390 & 425 HP with and without A.I.R. LS-5 & LS-6
      3880827 66-69 427 & 454 LH Corvette
      3872778 66-68 283, 307 & 327 RH Corvette, Passenger and Truck 195, 200, 250, 275, 300 & 350 HP 1.9″ Outlet A.I.R.
      3872770 66 396 RH
      3872765 67-71 327 & 350 LH Corvette 300, 330, 350 & 370 HP 2.0″ Outlet A.I.R.
      3872741 66-68 283, 307 & 327 LH Passenger 195, 200, 220, 250 & 275 HP 2.0″ Outlet A.I.R.
      3872738 66-67 283 & 327 RH 195, 220, 275 & 350 HP 1.9″ Outlet Chevy II
      3872730 66-68 283, 302, 307 & 327 RH Chevelle, Camaro & Z-28 200, 210, 220, 250, 275, 290, 325 & 350 HP 1.9″ Outlet A.I.R.
      3872729 66 283 & 327 LH Chevelle 195,220, 275 & 350 HP 2.0″ Outlet A.I.R.
      3872723 66-67 283 & 327 LH 195, 220, 275 & 350 HP 2.0″ Outlet Chevy II A.I.R.
      3869925 65 396 LH Chevelle 375 HP Z-16
      3868874 65-66 396 RH Chevelle 325, 360 & 375 HP Z-16
      3857297 65 396 LH Passenger 325 HP
      3856306 65 396 RH Passenger 325 HP
      3856302 65 396 RH 425 HP Corvette
      3856301 65 396 LH 425 HP Corvette
      3856297 65 396 LH 325 HP
      3855163 65-68 283, 307 & 327 LH Passenger and Truck 195, 200, 220, 250 & 275 HP 2.0″ Outlet
      3855162 65 409 RH Passenger 340 & 400 HP
      3855161 65 409 LH Passenger 340 & 400 HP
      3849290 64-67 283 & 327 RH 195, 220, 275 & 350 HP 1.9″ Outlet Chevy II with AC
      3849288 64-67 283 & 327 RH 195, 220, 275 & 350 HP 1.9″ Outlet Chevy II
      3846659 66 327 LH 350 HP
      3846563 64-65 327 LH Corvette 300, 350 & 365 HP 2.5″ Outlet
      3846559 64-71 327 & 350 LH Corvette 250, 270, 300 & 350 HP 2.0″ Outlet
      3840912 64-68 283, 307, 327 & 350 RH Chevelle, Camaro and Nova 195, 200, 210, 220, 250, 275, 295, 300, 325, 350 & 365 HP 1.9″ Outlet
      3840715 64 283 & 327 LH Chevelle
      3837069 55 265 LH Corvette and Passenger 195 HP
      3836968 55-56 265 RH Corvette and Passenger 195 HP
      3834947 64-68 283, 307 & 327 LH Chevelle 195, 200, 210, 220, 250, 275, 295, 300, 325, 350 & 365 HP 2.0″ Outlet
      3822926 62-64 409 RH Passenger & Z-11
      3822925 62-64 409 LH Passenger & Z-11
      3814683 62-64 409 LH Passenger
      3814682 62-64 409 RH Passenger
      3797942 63-65 327 LH & RH Corvette 300, 360, 365 & 375 HP 2.5″ Outlet
      3797902 62-65 327 RH Corvette 300, 340, 360, 365 & 375 HP 2.5″ Outlet
      3797901 62-63 327 LH Corvette 300, 340 & 360 HP
      3791182 66-67 283 & 327 RH Passenger with AC
      3791162 65-66 283 & 327 RH Chevy II with AC
      3790730 64-65 283 & 327 RH 220, 250 & 300 HP 1.9″ Outlet Chevy II
      3790729 64-67 283 & 327 LH 195, 220, 250, 270, 275, 300 & 350 HP 2.0″ Outlet Chevy II
      3780728 64-67 327 LH Chevy II
      3767584 59-61 348 & 409 RH Passenger
      3767583 59-61 348 & 409 LH Passenger
      3750556 58-65 283 & 327 RH Corvette and Passenger 230, 245, 250, 270, 275, 290, 300 & 315 HP
      3749965 58-63 283 & 327 LH Corvette and Passenger 230, 245, 250, 270, 275, 290, 300 & 315 HP
      3747942 65 327 LH & RH 250, 350 & 365 HP
      3747938 64 327 LH & RH 250 & 300 HP
      3747042 58-68 283, 307 & 327 RH Corvette and Passenger 195, 200, 220, 250, 270, 275, 290, 300 & 350 HP 1.9″ Outlet
      3747038 58-65 283 & 327 RH Corvette and Passenger 220, 250 & 300 HP 1.9″ Outlet
      3746563 65 327 LH 300 HP
      3737902 62-65 327 RH 300, 340, 360, 365 & 375 HP 2.5″ Outlet
      3733976 57 283 RH Corvette and Passenger 220, 245, 250, 270 & 283 HP
      3733975 57 283 LH Corvette and Passenger 220, 245, 250, 270 & 283 HP
      3732794 58-61 348 RH Passenger
      3732793 58-61 348 LH Passenger
      3732498 58 283 RH Corvette FI
      3731558 56 265 RH Corvette and Passenger 225 HP
      3731557 56 265 LH Corvette and Passenger 225 HP
      3725563 56 265 LH & RH Corvette and Passenger 210 HP 2-Bolt Flange
      3704792 55-56 265 RH Corvette and Passenger 195 HP
      3704791 55-56 265 LH Corvette and Passenger 195 HP
      745994 80-86 267 & 305 LH
      474008 78-82 267, 305 & 350 RH
      462698 77-83 267 & 305 RH Monte Carlo and Malibu
      462697 77-79 267 & 305 LH Monte Carlo and Malibu
      372243 74-83 307, 350 & 400 RH Corvette and Replacement manifold
      364753 76-80 307, 350 & 400 LH Camaro, Monte Carlo, Malibu and Passenger
      354433 75-76 262 LH 110 HP
      354432 75-76 262 RH 110 HP
      353030 73-76 454 LH Police
      353028 73-76 454 LH Chevelle and Passenger with and without A.I.R.
      346248 75-77 262, 350 & 400 RH Chevelle, Camaro, Monte Carlo and Passenger 110, 145, 155 & 175 HP
      346247 75-77 262, 350 & 400 LH Chevelle, Camaro, Monte Carlo and Passenger 110, 145, 155 & 175 HP
      346222 74-80 307, 350 & 400 RH Chevelle, Camaro, Nova and Passenger with A.I.R.
      336710 74-78 307, 350 & 400 LH Chevelle, Camaro, Z-28, Nova and Passenger with A.I.R.
      336709 74-78 350 RH Camaro & Z-28 with A.I.R.
      336708 74-78 350 RH
      336707 74-78 350 LH
      336706 74-78 350 RH
      329225 73-76 454 LH Chevelle and Passenger with and without A.I.R.

      Chevy Intake Manifold Casting Numbers Lookup

      Type your intake manifold number in the SEARCH BOX below. E.g. 7017300R

      Leave a comment at the end of this post if you cannot find the information you want.

      Casting Number CID Years Type Notes
      7017375R 327 1964 Rochester FI
      7017300R 283 1959 Rochester FI
      7014900R 283 1958-59 Rochester FI
      7014800R 283 1985 Rochester FI
      14096242 350 1990 4-Brl Holley High rise Bowtie
      14081006 350 87-89 TPI Corvette Plenum MASS air 9th injector style
      14057053 305/350 80-88 4-Brl Aluminum Quadrajet
      14014432 350 1981 4-Brl Aluminum Quadrajet Z-28
      14007374 305 79-82 2-Brl Aluminum
      12552138 265 93-96 MFI L-99 (lt-1 style 4.3L V-8)
      12550631 350 96 MFI LT-4 Power coated red
      10108630 350 92-97 MFI LT-1
      10086016 305/350 90-92 TPI Base Speed density type (87 & UP intake bolt pattern)
      10077151 305/350 90-92 TPI Plenum Speed density type
      10066013 350 87-89 TPI Corvette Base MASS air 9th injector style Aluminum heads (86 and older)
      10051103 350 1990 4-Brl Aluminum Bowtie Single plane
      7017380 327 64-65 Rochester FI
      7017375 327 1963 Rochester FI
      7017360 327 1962 Rochester FI
      7017355 327 1962 Rochester FI
      7017320 283 1960 Rochester FI
      7017310 283 60-61 Rochester FI
      7017300 283 59-60 Rochester FI
      7017250 283 59-61 Rochester FI
      7017200 283 59-61 Rochester FI
      7014960 283 1958 Rochester FI
      7014900 283 1958 Rochester FI
      7014800 283 57-58 Rochester FI
      7014520 283 1957 Rochester FI
      7014360 283 1957 Rochester FI
      6271061 307 1973 2-Brl
      6271060 307 1973 2-Brl
      6269318 454 72 Holley Rectangular port Aluminum
      6263753 402/454 72 Q-jet Oval port LS-3/LS-5
      6263752 350/400 1972 2-Brl
      6263751 350 1972 4-Brl Quadrajet
      6262936 307 1972 2-Brl
      6262930 350 1972 4-Brl Quadrajet
      6262928 307 1972 2-Brl
      3997773 350/400 1973 2-Brl
      3997772 350 1973 2-Brl
      3997771 350 1973 4-Brl Quadrajet
      3997770 350 1973 4-Brl Quadrajet
      3991005 307 1971 2-Brl
      3991004 350 1973 4-Brl Quadrajet
      3990948 350 1971 2-Brl
      3987361 350 69-70 4-Brl Quadrajet
      3973469 350 1971 4-Brl Quadrajet
      3973467 350/400 1971 2-Brl
      3973465 307 69-71 2-Brl
      3972361 350 1971 4-Brl Aluminum
      3972116 350 1970 4-Brl Aluminum Service replacement part
      3972114 350 70-72 4-Brl Aluminum
      3972110 350 1970 4-Brl Aluminum
      3967474 454 71 Holley Rectangular port Aluminum
      3965577 350 1970 4-Brl Quadrajet
      3963569 396/402/454 70-71 Holley Rectangular port Aluminum Low rise L-78/L-89/LS-6
      3959594 350 71-72 4-Brl Aluminum
      3958626 350 69-70 2-Brl
      3958622 307/327 69-70 2-Brl
      3955287 402/454 70-71 Q-jet Oval port LS-3/LS-5
      3952900 396 69 2-Brl Oval port
      3947801 427 69 Q-jet Oval port Aluminum L-36
      3941130 302 68-69 Cross Ram Aluminum top plate
      3941126 302 68-69 Cross Ram Aluminum base
      3937797 427 69 Three duce Rectangular port Aluminum L-71
      3937795 427 69 Three duce Oval port Aluminum L-68
      3937793 427 68 Q-jet Oval port Aluminum L-36
      3933198 427 68-69 Holley Rectangular port Aluminum L-88/ZL-1
      3933163 396/427 68-69 Holley Rectangular port Aluminum L-78/L-89 COPO
      3932472 302/350 69-70 4-Brl Aluminum
      3931067 396/427 69 Q-jet Oval port L-35/L-36
      3927184 350 1969 4-Brl Quadrajet
      3927183 307/327 69-70 2-Brl
      3919878 396/427 68 Holley Rectangular port Aluminum L-78/L-72
      3919852 427 68 Three duce Rectangular port Aluminum L-71
      3919850 427 68 Three duce Oval port Aluminum L-68
      3919849 427 68 Q-jet Oval port Aluminum L-36
      3919803 327/350 67-68 4-Brl Quadrajet
      3919801 307/327 1968 2-Brl
      3917610 302 67-68 4-Brl Aluminum
      3916313 307/327/350/400 69-70 2-Brl
      3910601 327 67-68 2-Brl
      3905393 327/350 1967 4-Brl Quadrajet
      3894382 427 67 Three duce Oval port Aluminum L-68
      3894374 427 67 Three duce Rectangular port Aluminum L-71
      3890490 327 66-67 4-Brl Aluminum
      3886093 427 67 Holley Rectangular port Aluminum L-88
      3885069 396/427 66-68 Holley Rectangular port Aluminum L-78/L-72
      3883984 396/427 66-68 Q-jet Oval port L-35/L-36
      3882858 283 1966 4-Brl Carter AFB
      3877652 283/327 65-67 2-Brl
      3875954 327 1966 4-Brl Carter AFB
      3872788 238/327 66-67 4-Brl Holley
      3872783 283/327 66-67 4-Brl Holley
      3866963 396 65 Holley Rectangular port Aluminum L-37
      3866948 396/427 66-67 Holley Oval port L-34/L-35
      3866922 283/327 62-65 4-Brl WCFB
      3856289 396 65-66 Q-jet Oval port L-35
      3844472 348/409 62-65 4-Brl
      3844464 409 64-65 4-Brl 340HP
      3844463 409 64-65 4-Brl 400HP
      3844461 327 64-65 4-Brl Aluminum
      3844459 327 63-65 4-Brl Carter AFB
      3844457 283/327 64-65 4-Brl WCFB
      3840905 283 64-65 2-Brl
      3837109 265/283 56-57 4-Brl WCFB
      3830831 409 63 4-Brl 340HP
      3830623 409 63 Dual quad Aluminum Z-11
      3826810 327 63-65 Fuel Injection Aluminum
      3814881 409 62-64 Dual quad Aluminum
      3813678 409 62-63 4-Brl
      3799349 327 62-64 4-Brl Carter AFB
      3797776 409 61 4-Brl
      3797775 348 59-60 4-Brl
      3795397 327 1962 4-Brl Aluminum
      3794129 327 1963 4-Brl Aluminum
      3783244 327 62-63 4-Brl WCFB
      3780540 348 58-59 4-Brl Aluminum
      3772265 348 60-61 4-Brl
      3770084 348 58-59 4-Brl
      3767579 348/409 61 4-Brl
      3760436 348 58-59 4-Brl
      3753809 283 59-62 2-Brl
      3753748 348 60-61 Dual quad Aluminum
      3749948 348 58-61 Three duce
      3746829 283/327 58-64 4-Brl WCFB
      3746826 265/283 56-63 2-Brl
      3741193 283 1957 Fuel Injection Aluminum
      3739653 283 58-61 Dual Quad Aluminum
      3737109 265 1956 4-Brl WCFB
      3735448 265 1956 4-Brl WCFB
      3735444 265 1956 2-Brl
      3732880 265/283 56-57 2-Brl
      3732757 348 58-62 4-Brl
      3732690 265/283 56-57 2-Brl
      3731398 283 1957 4-Brl WCFB
      3731394 283 56-57 Dual Quad Aluminum
      3728725 265 1956 Dual Quad Aluminum
      3711348 265 1955 4-Brl WCFB
      3704790 265 1955 2-Brl
      626932 350 71-72 4-Brl Quadrajet
      458520 305/350 77-82 4-Brl Quadrajet
      458520 305/350 82-87 4-Brl Aluminum
      393841 454 73-75 Q-jet Oval port
      373598 305 78-81 2-Brl Aluminum
      355943 262 1975 2-Brl
      353015 454 73 Q-jet Oval port
      346260 267/305/350 73-77 2-Brl
      346250 305/350 76-82 4-Brl Quadrajet
      346249 305/350/400 75-77 4-Brl Quadrajet
      346242 454 75 Q-jet Oval port
      340281 305/350 82-85 4-Brl Quadrajet
      340266 305/350/400 73-82 2-Brl
      340261 350/400 74-76 4-Brl Quadrajet
      336789 454 74 Q-jet Oval port

      Related posts:

      SBC Head Casting Numbers: Full List & Lookup

      Author

      • Randy

        My name is Randy Worner and I am the founder of chevygeek.com. I have been working on cars and trucks for almost 45 years. For the last 36 years I have taught Automotive / Diesel Technology classes for UTI, Snap On Tools, Chrysler, Pepboys, Lone Star College, NAPA and TBC Corporation. I also own a technical writing company known as Supreme Technical Services. It is ASE Gold Seal certified and Blue Seal Certified Author of auto/truck repair information.

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

      1. 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

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

      3. bud fisher fisher

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

        1. 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.

      4. 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?

        1. 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.

        1. 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.

      5. 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.

        1. 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/

      6. 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.

      7. kevin halferty

        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

      8. 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

        1. 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.

      9. 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!

      10. 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.

      11. 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

      12. Darrell W. Peters

        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.

      13. 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.

      14. 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

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