Head Identification expert needed

[netracer61]

I am having a hard time trying to figure out what kind of heads are on my car, I know they are not original, nor is the block . I have included a photo of the head maybe one of the chevy Gurus has an idea.


Tom Osbon
AKA Netracer61

 

[Crimson Thunder]

That roller rocker is covering the last part of the number.I like to use Mortec.com to look up head and block numbers.

 

[netracer61]

Do you mean the 1-037 number? If so that is the whole number.

 

[GerryLP]

No guru here, but on the right side of the image, there appears to be a short casting number "638". If the head turns-out to be a 3931638 head, then it is a 327 head for trucks (1.72 intake / 1.5 exhaust). If I am miss-reading the number, then perhaps it could be a "639", and this would mean a 3961639 casting head for a 302 (2.02 intake valves/ 1.6 exhaust).

An image of one of the ends of the head would shed some more details...

 

[duke94]

This site has all the head casting numbers.
http://www.mortec.com/castnum.htm

 

[netracer61]

I was contacted by the folks at World Products, It is there SportsmanII head, thanks for all who replied.