The Engine Block Casting code is one of the best ways to identify a Chevy engine block. This Casting number is usually found at the rear of the block on the left or drivers side on top of the bellhousing flange.

Auto Barn - Shop on-line at our 5-Star Rated Site

Choose Group to View Engine Block Codes

Engine Block Codes for CID 327

Casting Years CID HP Main Notes
3782870 1962-67 327 250-375 2 passenger, chevelle, corvette
3789817 1962-67 327 2 truck
3790721 1965-66 327 250-350 2 Chevy II recessed oil filter boss
3791362 1962-67 327 250-350 2 Chevy II recessed oil filter boss
3792563 1965 327 2
3794460 1962-64 327 2
3814660 1968-69 327 2
3830944 1963 327 2
3858174 1964-67 327 275-350 2 passenger, chevelle, corvette, trucks
3858180 1964-67 327 250-375 2 passenger, chevelle, corvette
3892657 1966-67 327 210-350 2 Passenger/Chevelle/Corvette/Camaro
3903352 1967 327 210-350 2 Passenger/Chevelle/Corvette/Camaro
3914660 1968 327 210-300 2 Passenger/Chevelle/Chevy II/Camaro/Corvette
3914678 1968 327 210-350 2 Passenger/Chevelle/Chevy II/Camaro/Corvette
3932386 1969 327 2 ?? Unverified
3956618 1968-69 327 235 2 Passenger
3959512 1962-67 327 2 Was also used for some replacement blocks