Looking for the year manufactured?

[Field runner]

Have a SS433 engine, Serial # SS433-039654. Would anyone be able to tell me the year??

 

[Ding]

Likely came in a 1980 EX440D

Should be a 1980

 

[Field runner]

Thanks. I picked up a 1981 SRX the other week with this engine in it.

 

[Vmax540]

http://www.vintagevmax.com/sled_serial_numbers.html