Lt1 head confusion!
#2
TECH Senior Member
iTrader: (2)
Incredibly hard to tell from the pic. I'd suggest taking off the valve covers and having a look-see for any part numbers or any identifying marks. You can compare them to the pictures in this album and see if you can figure it out:
http://www.google.com/imgres?imgurl=...26tbs%3Disch:1
http://www.google.com/imgres?imgurl=...26tbs%3Disch:1
#5
TECH Veteran
All those little bumps and ridges under where the bolt holes are looks just like a stock head casting. Aftermarket heads aren't going to look like that. You will easily be able to tell, once you have the valvecover off. The GM casting number will be visible.
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#13
TECH Veteran