The normal oil pressure on a GM 305 engine is between 40 and 60 PSI depending on the model year. High oil pressure is needed to allow for proper circulation through the engine.
The oil pressure sending unit is located under the hood, way in back of the engine, under the distributor on the drivers side. Removal requires removal of the distributor.
No it will not. Unless the oil pressure is low on the 350 engine. If you had good oil pressure in the 305, and the 350 don't then there is something wrong with the 350. Bad oil pump, engine bearings worn out, Oil pump pick-up screen stoped up. Things like that cause low oil pressure.
Right behind the distributor on the engine block.
Measures the engine oil pressure and sends this information to the oil pressure gauge.
OIL PRESSURE SENDING UNIT
Oil pressure sending unit Where is it at on the engine
The oil pressure sending unit on the 4.7L engine is right above the oil filter.
top rear of the motor, next to the distributor
most likely a sending unit problem
On the drivers side of the block, right above the oil filter.
In the engine, usually in an oil pressure port