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CHEVROLET

Engine Build Date Codes

 

1960-75 Block Stamp: T0306YD

T
Plant
03
Month
06
Day
YD
Engine code
 
 
Code
Month
Code
Month
01 January 07 July
02 February 08 August
03 March 09 September
04 April 10 October
05 May 11 November
06 June 12 December
 
 

Plant codes:

C- Canada

T-Tonawanda plant

F- Flint plant

Location:

Corvette: Last six digits of VIN follow engine build code.

Corvair: Stamped on top of block forward of generator.

8 Cyl: Stamped on right front of engine block.

4 & 6 Cyl: Stamped on right side of engine block, rear of distributor

 

 

The engine build date code decoder reveals the plant, year, engine displacement, and month and day of manufacture.