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| | | | Joined: Oct 2003 Posts: 36 Junior Member | | Junior Member Joined: Oct 2003 Posts: 36 | I have a Chevy small block in my truck. I have placed the oil sensor at the top of the engine close to the distributor.
There are two other threaded "holes" in the engine that may require plugs. One is a few inches below the oil dip stick hole and the other is above the oil filter. I believe the one above the oil filter is an alternate oil sensor hole.
Do I have to plug both these holes? If so, what size threads will the plugs require? The plugs I have are 1/4 inch but I am nit certain they are NPT. I thought I read somewhere they use NPT threads.
Richie West
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