Join Date: Aug 2002
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Re: Holes in a 345???
I think the holes you're talking about are supposed to be there. I was concerned when I built my 345, too!
If I recall, there's one hole in a "vertical" face near the front of the motor, by the distributor area. A second hole towards the rear of the motor goes from the "valley" down into the crankcase.
They're jagged for some reason or the other, but the holes were made by IH when they cast the block.