[V8] 4.2 Oil in Coolant

[Thomas Barbera]

Well, found some nice thick oily sludge in the coolant
resservoir of my father's '93 V8 the other day.  I
figured it was a blown head gasket.  Took the heads
off, but found no area on the gaskets where it was
obviously leaking.  Had the heads redone at the
machine shop, they pressure tested them and checked
for warpage, all checked out well.  The only flaw I
found was that the channels for the coolant in the
block had some major corrosion, the previous owner was
probably using phosphate antifreeze.  One of the
channels in particular has some pretty bad pitting
near one of the cylinders.  It doesn't look good.  The
channel that is badly pitted is not a through channel,
the head gasket plugs it.  
Does anyone have any comments on whether this could be
my problem?  Is there anything else which could put
oil in my coolant?  I'm really nervous about this
block.  If it were a 3.6, I'd just find another one. 
4.2 blocks are hard to come by.  Just for kicks I
asket the dealer the price of a new block, $14,000! 
Ha ha!
I talked about using metal epoxy, but my machine shop
told me that it might cause a lump and prevent the
head gasket from sealing.  They suggested using
silicone to plug the channel and the pitted area
around it. 
Please help guys, not sure what to do.  Thanks in
advance.

Tom B.
'91 V8 5spd
'93 V8 (father's) 


	
		
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