[TinCup]

I am in the process of rebuilding a diamond block motor that we found on a farm in northern Okla. Other than me snapping a head stud everything other than this damage to the valve chamber makes this a good block. It is a 20 over block that I will take to 40 if this damage does not make it unusable. This tunnel feeds the front of the block but because the oil flow not pumped to the front of the motor as long as the tunnel is clear will it be ok. Trust me it looks much better after we have started to clean it up.