Not a good day.

[THE LIMEY]

Just rebuilt the engine in my Ford 5000, left it sitting for a week and have noticed anti freeze seaping out of the head gasket on the fuel pump side of the engine.
The engine has been through a reputable engine shop so iknow the block and head are flat and not warped.
The gasket is one of the new type ones sold with many rebuild kits and seems more flimsy than the one that was on before.
Have run the engine till up to temperature and have re-torqued the head bolts, but no joy.

Here we go again, ain't restoration fun?

 

[RodinNS]

Pop the head off again and chase the bolt holes down with a bottoming tap... and MAKE SURE the head is not hanging up on the guide dowels. It's surprisingly easy for that to happen...

Rod

 

[Anonymous-0]

Also, clean your head bolts, install, torque with oil on threads and under head of bolts.

 

[Brian Allen]

THE LIMEY
As mentioned, you probably have bolts that are bottoming out, causing the head gasket to leak.
Diss-assemble, and set the head on without the head gasket, install the head bolts. Any bolts that do not seat (gap between bottom of bolt and the cylinder head) must be re-taped until the bolts sit flush.
Remove head and re-assemble with new head gasket.
Post back if you have more questions.
Brian