I just got a new high volume oil pump from summit.It has 2 different springs.One of them i already in it and it says it is the higher pressure spring.They also gav me a stock one.


I remember when my buddy built his 327 we put a high pressure oil pump in it.He kept blowing a gasket.I don't remember which one.


So which spring would you use the high pressure.(70 psi)Or the stock pressure one.

 

i wouldn't of got a HV pump, but that's just me. i'd run a m55 pump and a mr gasket #26 spring. for what you have i'd run the hp spring. there isn't any gasket that would blow or leak because of the oil pump, that i can think of.

 

I would think the oil filter gasket might leak with excessive oil press.

A stock oil pump can pump more than half of the eng's oil into the valve covers at high RPM. The HV pump is not really needed for a street eng and will actually reduce the performance of a street eng due to un-necessary drag. Plus they are hard on distributor/camshaft gears, especially with high press springs.
Just my .02..