Block Casting Numbers for Small Block Chevrolet V8
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1955-1985 These listings are always a work-in-progress. If you have any documented info that can be added to these pages, please contact me and let me know. |
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| Casting # | C.I.D. | Year | Vehicle Application | Notes |
| 330817 | 400 | 73-76 | Pass. | 2 bolt mains |
| 330817 | 400 | 75-80 | Truck | 2 bolt mains |
| 355909 | 305 | 76-79 | Truck | - |
| 355909 | 305 | 78-79 | Malibu, Camaro, Nova, Monte Carlo, Pass. | - |
| 360851 | 262 | 75-76 | Monza | - |
| 361979 | 305 | 76-79 | Malibu, Camaro, Nova, Monte Carlo, Pass., and Truck | - |
| 366245 | 350 | 78-79 | Malibu, Camaro, Nova, Pass. | Dipstick is in the oil pan. |
| 460776 | 305 | 76-79 | Truck | - |
| 460776 460777 460778 |
305 | 78-79 | Malibu, Monte Carlo, Camaro, Nova, Pass. | - |
| 471511 | 267 | 79-82 | Malibu, Monte Carlo | - |
| 3703524 | 265 | 1955 | Corvette | 195 HP, no oil filter |
| 3703524 | 265 | 1955 | Passenger | no oil filter |
| 3720991 | 265 | 1956 | Corvette | w/oil filter |
| 3731548 | 283 | 1957 | Corvette, Pass., Truck | No side motor mounts |
| 3737739 | 283 | 58-59 | Corvette | early 59 only |
| 3737739 | 283 | 58-61 | Passenger | - |
| 3756519 | 283 | 58-61 | Corvette | - |
| 3756519 | 283 | 58-62 | Pass., Truck | - |
| 3782870 | 327 | 62-65 | Corvette, Chevelle, Pass., Truck | sm. journal |
| 3789817 | 327 | 62-65 | Chevelle, Pass., Truck | sm. journal |
| 3789935 | 283 | 61 | Corvette | late 61 |
| 3789935 | 283 | 62-64 | Truck | - |
| 3789935 | 283 | 63-64 | Chevelle, Pass. | - |
| 3790721 | 283 | 64-65 | Chevy II | recessed oil filter boss |
| 3791362 | 327 | 65-67 | Chevy II, Nova | recessed oil filter boss, sm. journal |
| 3794226 | 283 | 58-62 | Truck | - |
| 3794460 | 327 | 68-69 | Chevelle, Camaro, Nova, Pass. | Lg. journal |
| 3837739 | 283 | 58-62 | Truck | - |
| 3849852 | 283 | 58-63 | Pass. | - |
| 3849852 | 283 | 58-67 | Truck | - |
| 3849852 | 283 | 64-67 | Chevelle, Pass. | - |
| 3849935 | 283 | 62-67 | Chevelle, Pass. | - |
| 3858174 | 327 | 64-67 | Chevelle, Camaro, Pass., Truck | sm. journal |
| 3858174 | 327 | 67 | Corvette | sm. journal, 300, 350 HP. |
| 3858174 | 350 | 67 | Camaro | - |
| 3858180 | 327 | 64-67 | Chevelle, Camaro, Pass., Truck | sm. journal |
| 3858180 | 327 | 65 | Corvette | - |
| 3862194 | 283 | 66-67 | Chevy II | recessed oil filter boss |
| 3864812 | 283 | 63-64 | Chevelle, Pass., Truck | - |
| 3889935 | 283 | 63 | Truck | - |
| 3892657 | 327 | 64-67 | Chevelle, Pass. | Std & Hi Perf., sm journal |
| 3892657 | 327 | 64-67 | Truck | sm journal |
| 3892657 | 327 | 66-67 | Corvette | sm journal, 2-bolt main, 300, 350 HP. |
| 3892657 | 302, 327 | 67 | Camaro & Z28 | sm journal, 2-bolt main |
| 3896948 | 283 | 65-67 | Chevelle, Pass., Truck | - |
| 3903352 | 327 | 64-67 | Chevelle, Camaro, Pass. | sm. journal |
| 3914635 3914636 |
307 | 68-73 | Chevelle, Camaro, Nova, Pass., Truck | - |
| 3914660 | 327 | 68-69 | Chevelle, Camaro, Nova, Pass., Truck | - |
| 3914678 | 302, 327, 350 | 68 | Camaro & Z28 | Lg. journal, 2-bolt main |
| 3914678 | 327 | 68 | Corvette | Lg. journal, 2-bolt main, 300, 350 HP. |
| 3914678 | 327 | 68-69 | Chevelle, Camaro, Nova, Pass., Truck | - |
| 3914678 | 350 | 68-74 | Chevelle, Camaro, Nova, Monte Carlo, Pass. | - |
| 3914678 | 350 | 69-76 | Truck | - |
| 3914678 | 350 | 78-79 | Malibu, Camaro, Nova, Pass. | - |
| 3932371 | 307 | 68-73 | Chevelle, Camaro, Nova, Pass. | - |
| 3932371 | 307 | 69-73 | Truck | - |
| 3932373 | 307 | 68-73 | Chevelle, Camaro, Nova, Pass., Truck | - |
| 3932386 | 327 | 68-69 | Chevelle, Camaro, Nova, Pass. | Lg. journal |
| 3932386 | 350 | 69 | Corvette | 300, 350 HP |
| 3932386 | 350 | 69-74 | Chevelle, Camaro, Nova, Monte Carlo, Pass. | 4-bolt main, Hi Perf. |
| 3932388 | 350 | 68-74 | Chevelle, Camaro, Nova, Monte Carlo, Pass. | 2-bolt main |
| 3932388 | 350 | 69-76 | Truck | 2-bolt main |
| 3932442 | 350 | 67 | Camaro | - |
| 3933180 | 327 | 68-69 | Chevelle, Camaro, Nova, Pass., Truck | Lg. journal |
| 3941174 | 307 | 68 | Truck | - |
| 3951509 | 400 | 73-76 | Pass. | 2-bolt main, 2 freeze plugs per side |
| 3951509 | 400 | 75-80 | Truck | 2-bolt main, 2 freeze plugs per side |
| 3951511 | 400 | 70-73 | Chevelle, Monte Carlo, Pass. | 4-bolt main, 3 freeze plugs per side |
| 3951511 | 400 | 75-80 | Truck | 4-bolt main, 3 freeze plugs per side |
| 3955618 | 327 | 68-69 | Chevelle, Camaro, Nova, Pass. | Lg. journal |
| 3955618 | 302 | 69 | Camaro Z28 | 4-bolt main, early 69 |
| 3955618 | 350 | 69 | Corvette | 4-bolt main, 300, 350 HP |
| 3955618 | 350 | 69-74 | Chevelle, Camaro, Nova, Monte Carlo, Pass. | - |
| 3955618 | 350 | 69-76 | Truck | - |
| 3956632 | 307 | 69-73 | Chevelle, Camaro, Nova, Pass., Truck | - |
| 3970010 | 350 | 69 | Corvette | 4-bolt main, late 69 |
| 3970010 | 302 | 69 | Camaro | 4-bolt main, Z28, late 69 |
| 3970010 | 350 | 69-79 | Chevelle, Camaro, Nova, Monte Carlo, Pass., Truck | 2 and 4-bolt main |
| 3970010 | 350 | 70 | Corvette | 4-bolt main, 300, 350, 370 HP |
| 3970010 | 350 | 71 | Corvette | 4-bolt main, 270, 330 HP |
| 3970010 | 350 | 72 | Corvette | 4-bolt main, 200, 255 HP |
| 3970014 | 350 | 69-77 | Chevelle, Camaro, Nova, Monte Carlo, Pass., | 2 or 4-bolt main |
| 3970014 | 350 | 69-79 | Truck | 2 or 4-bolt main |
| 3970014 | 350 | 72 | Corvette | late '72, 200, 255 HP, 4-bolt main |
| 3970020 | 307 | 68-73 | Chevelle, Camaro, Nova, Pass. | - |
| 3970020 | 307 | 69-73 | Truck | - |
| 3970024 | 307 | 69-73 | Chevelle, Camaro, Nova, Pass., Truck | - |
| 3992386 | 327 | 68-69 | Chevelle, Camaro, Nova, Pass., Truck | Lg. journal |
| 14010201 | 305 | 80-85 | Malibu, Camaro, Nova, Monte Carlo, Pass., Truck | - |
| 14010202 14010203 |
305 | 80-85 | Malibu, Camaro, Monte Carlo, Pass., Truck | - |
| 14010205 | 267 | 80-82 | Malibu, Monte Carlo | - |
| 14010207 | 350 | 80-84 | Malibu, Camaro, Pass. | - |
| 14010207 | 350 | 80-85 | Truck (Lt. Duty) | - |
| 14010209 | 350 | 80-81 | Malibu, Camaro, Pass. | - |
| 14010209 | 350 | 80-85 | Truck (Heavy Duty) | - |
| 14010280 14016376 |
267 | 80-82 | Malibu, Monte Carlo | - |
| 14016379 | 350 | 77-79 | Chevelle, Camaro, Nova, Monte Carlo, Pass. | dipstick is in oil pan |
| 14016381 | 305 | 76-85 | Truck | - |
| 14016381 | 305 | 78-85 | Malibu, Camaro, Monte Carlo, Nova, Pass. | - |
| 14016383 | 305 | 80-85 | Truck | - |
| 14316379 | 350 | 69-85 | Truck | 2-piece rear main seal |
| 14316379 | 350 | 78-81 | Malibu, Camaro, Nova, Pass. | 1-piece rear main seal |
The above info represents 1955-85 only. |
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Block Casting Numbers for Small Block Chevrolet V8
Block casting numbers for small block Chevrolet V8 engines (265-283-327-350-400).
CASTING#.....SIZE...YEAR...MAIN CAP BOLTS....NOTES
140029.....350...80-84...2 330817.....400...72-80...2 355909.....262.....75....2 355909.....305...76-79...2 360851.....262...75-76...2...Monza V-8 361979.....305...77-79...2 or 4, some Canadian assembled heavy duty blocks have 4-bolt main caps 366245.....350...78-79...4...Bowtie 366286...................4...Bowtie, siamesed, straight nodular iron main caps, 2-piece seal, 4.00-4.150" bores, 2.45" main journals 366298...................4...Bowtie, Aluminum, billet main caps, 3.398" bore with sleeves, two piece rear main seal. 366299...................4...Bowtie, Aluminum, nodular iron splayed caps, wet sump, 4.00" bore 389257.....302.....67....2 393288.....283...65-67...2 460703.....350.....78....4 460776.....305...78-79...2 460777.....305...78-79...2 460778.....305...78-79...2 or 4, some Canadian assembled heavy duty truck blocks have 4-bolt main caps 471511.....267...79-82...2 3556519....283...58-61...2 3703524....265.....55....2...No oil filter 3720991....265...56-57...2 3731548....265...57......2...No side motor mounts 3731548....283...57......2...No side motor mounts 3737739....283...58-64...2 3756519....283...58-62...2 3782870....327...62-67...2 3789817....283...62-64...2 3789817....327...62-67...2 3789935....283...61-64...2 3790721....283...62-64...2...Chevy II recessed oil filter boss 3790721....327...65-66...2...Chevy II recessed oil filter boss 3791362....327...62-67...2...Chevy II recessed oil filter boss 3792563....327.....65....2 3792582....283...64-65...2 3794226....283...58-63...2 3794460....327...62-64...2 3830944....327.....63....2 3834810....283...64-66...2 3834812....283...62-63...2 3837739....283...58-62...2 3849852....283...57-66...2 3849935....283...65-67...2 3858174....327...64-67...2 3858180....327...64-67...2 3858618....350...68-76...2 3862194....283...65-67...2...Chevy II recessed oil filter boss 3862812....283...62-64...2 3892657....302.....67....2...Z-28 Camaro 3892657....327.....67....2 3892657....350.....67....2...Camaro 3896944....283...66-67...2 3896948....283...66-67...2 3903352....327.....67....2 3914636....307.....68....2 3914638....307.....68....2 3914653....307...68-73...2 3914660....327.....68....2 3914678....302.....68....2...Z-28 Camaro 3914678....327.....68....2 3914678....350.....68....2 3931174....307.....68....2...Truck 3932371....307...69-73...2 3932373....307...68-73...2 3932386....302.....69....4...Z-28 Camaro 3932386....327.....69....2 3932386....350.....69....2 or 4 3932388....327.....69....2 3932388....350.....69....2 or 4 3933180....327...68-69...2 3951509....400...70-71...4 3951509....400...74-80...2 3951511....400...70-73...4...Some replacement blocks had 2-bolt main caps 3956618....302.....69....4...Z-28 Camaro 3956618....327...68-69...2 3956618....350.....69....2 or 4 3956632....307.....69....2 3959512....327...62-67...2...Was also used for some "CE" replacement blocks 3959532....283...64......2...Used for some "CE" replacement blocks 3959538....327...........2...Chevy II recessed oil filter boss, Used for some Chevy II "CE" replacement blocks 3970010....302.....69....4...Z-28 Camaro 3970010....327.....69....2...Trucks and industrial 3970010....350...69-80...2 or 4 3970014....350...70-76...2 or 4 3970020....307...69-73...2 3970024....307...69-73...2 4715111....305.....80....2 6259425....350...69-76...2 10036033...350...........4...Goodwrench crate motor, 2-piece rear seal, "Hecho en Mexico" 10046164...305.....86....2 10049804.................4...Aluminum, Pontiac Super Duty version of Gen.I SBC, 4.00" bore,
350 mains, 2-piece rear seal, splayed caps, GTP race block 10051182.................2 or 4...Bowtie, 3.75"-4.30" bores, 1 or 2-piece rear seal 10051184.................4...Bowtie, 4.00"-4.155" bores, 1 or 2-piece rear seal 10054727...350...86-up...2 or 4...one piece rear seal, some "Made in Canada" 10066036...350...........2 or 4...Target Master/Goodwrench crate motor, 2-piece rear seal, "Hecho en Mexico" 10066038...350.....92....4...Goodwrench crate motor, 2-piece rear seal, "Hecho en Mexico" 10090511...350.....90....2...LT-5, ZR1 Vette, 375hp 10125327...350...92-up...2 or 4...Gen.II LT-1, reverse flow cooling 10125327...350...96-up...2 or 4...Gen.II LT-4, reverse flow cooling 10134398.................4...Bowtie, Aluminum, 4.125" bore, 2.65" main journals 10134996.................4...Bowtie, Aluminum, 4.125" bore 2.65" main journals 10153558...350...91-92...4...LT-5, ZR1 Vette, 375hp 10168588...265...94-96...2...L99, Gen.II, 4.3 Liter V-8, Caprice, reverse flow cooling 10199001...350...93-95...4...LT-5, ZR1 Vette, 405hp 10243878...305...96-98...2...Vortec truck, roller cam, one-piece rear seal 10243880...350...95-00...2 or 4...Vortec truck, Gen.I crate motors and "ZZ4", roller cam, one piece rear seal 12550592...350...97-up...crossbolted block, Gen.III, "LS1", aluminum 12551358.........99-up...Gen.III, 4.8L or 5.3L, cast iron, truck 12551364...364...98-04...crossbolted cast iron Gen. III, 6.0L, truck 12559378...350...99-up...crossbolted block, Gen.III, "LS1", aluminum 12559846...350...98-up...crossbolted block, Gen.III, "LS1", aluminum 12560621...350...98-up...crossbolted block, Gen.III, "LS1", aluminum 12560626...350...99-up...crossbolted block, Gen.III, "LS1", aluminum 12560629...350...99......crossbolted block, Gen.III, "LS1", aluminum 12561168...350...01-up...crossbolted block, Gen.III, "LS1", aluminum 12562174...350...98-up...crossbolted block, Gen.III, "LS1", aluminum 12568952...364...05-up...crossbolted block, Gen.III, 6.0L, aluminum, LS2 12566910...325...04-up...crossbolted block, Gen.III, 5.3L, aluminum, SSR truck 12571048...325...04-up...crossbolted block, Gen.III, 5.3L 12573581...364...98-04...crossbolted cast iron, Gen.III, 6.0L, truck 12577184...364...98-04...crossbolted cast iron, Gen.III, 6.0L, truck 12577396.........02-up...Gen.III, 4.8L or 5.3L, cast iron, truck 14010201...305...80-85...2 14010202...305...80-85...2 14010203...305...80-85...2 14010207...350...80-85...2 or 4 14010209...350...80-85...2 or 4 14010280...267...79-82...2 14011064...350...83......4 14011148...350...87-89.......Roller cam, one-piece rear seal 14016376...267...79-82...2 14016379...350...77-79...2 or 4 14016381...305...80-84...2 14016382...305...79-84...2 14016383...305...80-85...2...Truck 14079287...350...86-90.......Truck 14088526...350...87-89.......Roller cam, one-piece rear seal 14088548...350...86-88...2 or 4 14088551...305...86-87...2...one-piece rear main seal 14093627...305...87-94...2...Roller or flat tappet cam, one-piece rear seal 14093638...350...87-95...2 or 4...Roller or flat tappet cam, one-piece rear seal 14094766...305...86-up...2...One-piece rear seal 14101147...305...85-up...2 14101148...350...86-90...4...One-piece rear seal 14102058...305...87-91...2...Roller cam, one-piece rear seal 22551656.................4...Chevy/Olds Rocket block, 4.00"-4.190" bores, 2.45" mainjournal sizes, splayed caps, dry sump,
2-piece rear seal, 9.025" deck 22551660.................4...Chevy/Olds Rocket block, 4.00"-4.190" bores, 400 mains
journal sizes, splayed steel caps, wet sump, raised cam
2-piece rear seal, 9.300" deck