Okay i need heads for the 350 Tpi engine that i am building. Right now i have four sets of heads, and i was wondering which would be the best to port, and rebuild? The casting numbers are 441, 882, 624, and aslo stock 305 TPI heads (i forgot to write down the casting #). Also i have a set of 492 heads with accesory holes, but some how a valve was slammed side ways into one of the chambers, i'm not sure if they could be fixed, i will post a pic of them soon. Or would i be better of just saving up and either bying after market heads, or maybe vortec heads?

 

The 492s unless damaged beyond repair, then the 081s.

The others make accceptable anchors for small boats, but aren't good for much beyond that.