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 396/402

Casting Years CID Main Comment
3855061 1966-67 396
3855961 1966-67 396 2 passenger, chevelle
3855962 1965-66 396 4 passenger, Chevelle, Z16, Corvette
3866961 1966-69 396 Chevy, Chevy truck
3873858 1966 396 4
3902406 1967 396 2/4 Camaro, Chevelle
3902466 1965-67 396
3916323 1968 396 2/4 camaro, chevy II, chevelle
3935440 1968-69 396 2/4 Chevelle, Camaro, Nova
3955272 1969 396/402 2/4 Camaro, Chevelle, Chevy II, passenger
3965440 1968-69 396
3965449 1968-72 396
3965540 1968 396
3969854 1969-72 396/402 2/4 240, 265, 300, 325, 330, 350, 375, Camaro, Chevelle, Chevy II
3999290 1972 402 2 Chevelle, Camaro
6272177 1972 402