10/30 or 10/40 should be fine. You could use a heavier oil such as 15/40, 20/50, or straight 30 to increase oil pressure.
yes
10w30 Detergent oil from any major brand will work well.
350 tbi
8 degrees on older engines
As long as the 350 is older then a 1987, you will have no problems. They will bolt right on with no modifying.
A 5.7 is a 350. Vortec is basically the type of head used.
later model 350's run thermostats around 195 degrees, but older 350's didn't run that hot of a thermostat. I've seen them as low as 160 to 180 degrees on older 350's.
Mine had a 350 turbo in it.
1986 and older are 2 piece.
Type your answer here... no, its glass.
Chevy 350 LT1
take the fuel tank out of the vehicle. the pump is inside of the tank.