Hi All,
I was putting the piston's in tonight and noticed the hole that the oil pressure sensor threads into had a flat iron plug in it! It is on the side of the 350 block just above were the oil filter screws in. Is this a plug or threaded??? Anybody else have this problem? What did you do to fix this?

Thanks ,
Chris

 

Ummmm.... wild guess, total stab in the dark here.... so oil won't come out?

That hole is actually there as the access through which the factory drilled one or more of the oil passages through the block. Very few chassis used that hole for anything until FI came around, and not all FI motors even use it. It's a threaded pipe plug. You take it out if you need to put something there.

For this very reason, I always specify that machine shops return me my blocks with all plugs removed, and no cam bearings. They can be a real joy to remove after they've been in there for a couple of decades.

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ICON Motorsports