CR55
It's just a little surface rust!
i would completely agree w/ya except the first 2 i took i looked over thoroughly and was convinced i had a pair of good ones...as far as i know, vortecs are bad about cracking when they get overheated, and get overheated b/c of chevy's inferior intake gaskets from the factory leaking coolant frequently....anyway, i am still not convinced on aluminum, i'm told different head bolts are needed and there is always my fear of bolts seizing in the heads--exhaust bolts, etc.
hey gas! good looking shoes for a 34!!!!!!1
I ran Trick Flow aluminum heads since the mid 90's without any problems. Just put antisieze on the bolts that go into the head.