coolant in oil and head cracked

[Jeremy001995]

have a coolant in oil problem on my 12v, remove the tappet cover and put pressure in the coolant system to find the location of the leak because i expected to found a freeze plug leaking, coolant come from the pushrod holes, remove the valve covers and found this, on cyl 3-4-5 exhaust valve, coolant coming fron under the valve spring.

anyone ever see this? what can cause this?

head is good for the scrap yard i think

 

[56cummins]

I don't know why it would other than a bad casting. Its not like this is a triple spring prostock engine. Thats sucks.

 

[Snedge]

Could be the cylinders are getting coolant in them and pushing up around seats, but honestly looks like a cracked head. My next step would be to pull the exhaust manifold and look for cracks in the exhaust ports. Did you get it hot (coolant temp) recently ?

 

[Jeremy001995]

Could be the cylinders are getting coolant in them and pushing up around seats, but honestly looks like a cracked head. My next step would be to pull the exhaust manifold and look for cracks in the exhaust ports. Did you get it hot (coolant temp) recently ?

only one time last summer on sled pull, but had coolant in oil before this anyway! this head is good for the scrap bin, another head just arrive from the machine shop!