Greetings,

I was told by a mechanic that to do a valve job on any head will very likely result in ring failure and smoking in short order. He advises against doing a valve job along with the head gasget for this reason. My Brick is an 8 valve B230 non turbo with 134K and was not well maintained before I got it. It is now spotless under the hood with most everything replaced with quality parts.

I am considering buing a rebuild head that has already had a valve job done, been pressure tested, and machined mating surface for about $250

Are all the B230 heads the same for the 8 valve motors?
Is 5-6 hours realistic for this job for a first timer with a good array of air tools?

thanks