Gastrol are kendell with a A/C delco filter
how to install the oil pressure gauge on a Chevy 350 small block
if its the bigger oil filter, its an stp S5. If its the smaller oil filter, its an S3986. some 350's have big oil filters, some have small
GM. made a left and right side dip stick 350 block, and a 305 small block, and big blocks. It could be on either side of the engine.
One of the valve covers.
It should have at least 40 lbs. or more.
The front of the valve cover, on the drivers side will have a cap.
Corvette 1969 small block 350/300
It never changed on a 350 engine, It is still the same now as it was when they first made the small block engine.
There is a 1/8"npt port on the back rail of the block near the distributor hole.
On this engine I recommend you use an AC/Delco filter.