The Engine Block Casting code is one of the best ways to identify a Chevy engine block. This engine Casting number is usually found at the rear of the block on the left or drivers side on top of the bellhousing flange.
Chevy Big Block Engine Block Codes for CID 454
Casting | Years | CID | Main | Comment |
10051107 | 454 | 4 | Mark IV, Bowtie, 9.8 deck, siamesed bores, 4.25-4.50 bore | |
10069286 | 1990-1991 | 454 | 4 | Mark IV, Short deck |
10114182 | 1991-up | 454 | 4 | Generation V |
10134366 | 454 | 4 | Bowtie, Generation V, Tall deck | |
10185050 | 454 | 4 | Bowtie, Generation V, Short deck | |
10237297 | 1996-up | 454 | 4 | Vortec 7400, L-29 Generation VI |
12550313 | 1991-up | 454 | 4 | Generation V crate motor, Generation VI 4.25 bare block, fuel pump boss |
12561357 | 1996-up | 454 | 4 | Generation VI |
1401544 | 1975-87 | 454 | 2/4 | truck useage casting number may also be 14015445 |
14015443 | 1987-1990 | 454 | 2/4 | Mark IV, Truck or Motorhome |
14015445 | 1978-1990 | 454 | 2/4 | |
14044807 | 454 | 4 | Bowtie, Mark IV, CNC prep, Tall deck, 4.25 bore or 4.495 bores | |
24502504 | 454 | 4 | Bowtie, Generation V, Race prep, 9.8 short deck height | |
24502506 | 454 | 4 | Bowtie, Generation V, Race prep, 10.2 tall deck height | |
345014 | 1974-86 | 454 | truck | |
346236 | 1974-76 | 454 | 2 | Chevelle, Monte Carlo |
359070 | 1974-90 | 454 | truck | |
361959 | 1973-85 | 454 | car & truck | |
3963512 | 1970-72 | 454 | 2/4 | 345, 360, 365, 390, 425, 450, Chevelle, Corvette, Monte Carlo |
3963513 | 1973-76 | 454 | ||
3969854 | 1969-73 | 454 | 2/4 | |
3999289 | 1972-78 | 454 | 2 | Chevelle, Corvette, Monte Carlo, truck |