I am not recommending a type/brand/model of head, just recommending upgrading the materials/quality of the seats and valves.
It depends on what your boost and temps will be.
The heads you are looking at might be OK for 7 lbs of boost, but how will you know? What happens if you drop a valve seat or burn a valve. I'm saying your application may be beyond what the machining and components of the heads are designed for (regardless of price.)
Here is what I'm doing.
Building a P600B (675hp max potential) blown sb just because I have the short block parts already.
After watching the latest RoadKill garage episode I was convinced to get the best heads I could afford.
This engine will go in my 71ply B body to start.
Later I will put it in my daily driver 73 Dart swinger.
My heart would really like to be building my BB 431/451 Stroker as I know it has a stronger bottom end than the sb.
So basically I want to push the sb to max power possible out of a stock block.
Even if I have to buy this.
http://www.vsracing.net/catalog/product_info.php?cPath=21&products_id=1375
I think my biggest hurdle will be a trans that can handle the power without breaking the bank.
Kinda stinks I can buy a used Lsx and 4L80e for $1500ish with accessories and not have to worry about any of this. 900hp potential easy.
Drop in, tune, and go.
