The oil pressure on my 350 sbc is around 12-15 at idle in Drive (almost 20 in neutral or Park), when the engine is hot (higher if its cold). It is around 35-40 at higway speed. I have a mechanical oil pressure gauge from Autometer and I know it is correct. I have heard its ok to have such a low pressure, but it is a sign of the motor is getting old. I was wondering if it would help to put in a high volume or high pressure oil pump, and wich would be better. I cant put the truck in my garage (car garage, not a truck garage) so I will have to work on it outside and its rather cold at the moment /forums/images/graemlins/crazy.gif Thats the reason I am looking for an easy fix. To sum it up, should I buy a high volume oil pump, a high pressure oil pump or just do nothing /forums/images/graemlins/whistling.gif Jon H. Gudjonsson, 1981 Blazer K5, 350/TH350, NP208, D44/12 bolt, 4.88, lockers, 38"/44" tires.