small block indy heads

They do tend to be porous from the research I have done.

I have the 230CNC -2 heads. I had them pressure checked before running them to make sure they would be good. 3 days of driving on them so far and all is well too.

As was mentioned, it is usually the exhaust ports, especially on the -1 245 CNC program...apparently those have great potential to become a sprinkler system.


Your best bet is to go through an Indy dealer. Crappy selection for cylinder heads, with no in between from entry level to serious performance for the SB mopars is why I wish I started with a big block in the first place.