dj huffman:
Dave F:
Ok. So you're going with the whole engine?
The 290cc large oval port aluminum heads, and chevy aluminum intake etc.?
I've never heard anyone say how much work you can do to those heads.
Do you want to stay with stock springs? That will be a big factor as well.
DAVEIt's the zz502/502. This is the motor that I'm considering. I can change the head gaskets, brass freeze plugs. I just want to make sure that I can run this engine is a boat. It would be a great gain in hp's. I'm just worried about reversion, and such things. Can I run it cooling it with raw water? Any information you could give would be very helpful. Thanks again..