[motone82]

I hava a small block in my 67 and have no idea what type of aluminum heads I have. Can anyone help me out on what to look for? Thanks

 

[novamike]

Aluminum heads

Most aftermarket heads will have their makers name and part number either on the outside or under the valve covers.This also applies too GM heads also.
Since I'm sure you look on the outside,you'll probely have to look under the valve covers to see any casting I.D. or name.
Just remember that these may have a bare head part number and have been assembled with non stock parts.
Mike

 

[motone82]

Thanks Mike. The only thing stamped on the outside that I can see is "5555" on the passenger side right in front. I guess I will have to take off the valve covers.