blown head gasket

[Michael J Myers <mimyers@prairie.nodak.edu>]

Car:  1986 5KCS, KZ engine 110hp engine, auto,  110KM

Story:  Make a long story short, radiator end tank busted, and car was 
driven a ways, don't know how far.

What I know:  replaced radiator.  Started up.  Immediately steam/white smoke 
rose out of radiator expansion tank, I left the radiator cap off.  Engine 
sounded and ran fine.  Lots of smoke in exhaust.  Put radiator cap on.  
Within a minute, cap is whistling.  Few seconds later, engine stops 
idling on it's own.  Pulled spark plugs.  Coolant pooled up in Cyl. 
1,3,4. 

Cylinder head gasket gone?  Any other tests I should do first before I 
tear it apart?  Anything else I should replace while I have the cylinder 
head removed?  What are the chances the head's warped?

	Finger's crossed
	-Mike