same heads?

[eman035]

This may be a dumb question but are the driver side and passenger side heads the same? One has the number 4 on it and the other has the number 6 on it, they look identical I just want to know if they are. Any info on this will be appreciated. Thanks.

Eric

 

[REDS HOT AIR]

they should both have casting number 8445 on them ...if so they are the same

 

[eman035]

yes, they do both have that number on them. next question, I just got them from the machine shop, should i put the heads back on the same side they came from or does it matter? Also, what are the torque specs? Thanks again for the help.