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.

View Big Block Engine Casting Codes

Chevy Big Block Engine Block Codes for CID 454

Casting Years CID Main Comment
1401544 1975-87 454 truck
345014 1974-86 454 truck
346236 1974-76 454 2 Chevelle, Monte Carlo
353049 1973 454 corvette
359070 1974-90 454 truck
361959 1973-85 454 car & truck
3963512 1969-72 454 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

 

 

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