| |
Click on image for the lowdown. 
====
| | | Forums66 Topics128,012 Posts1,055,315 Members48,419 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | 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
| | | | | Joined: Jan 2003 Posts: 687 Shop Shark | | Shop Shark Joined: Jan 2003 Posts: 687 | Meredith: Your correct about right above oil filter (oil sender) my 88 GMC is there. Didn't know about 3rd one. Anyway pretty sure that is 1/4 Nat. Pipe Thread. If there is holes yes plug them. popcorn The Truth is Out There. (The one next to dipstick isn't a heat sensor alternate is it) | | |
|
|
| |
