Need advice on Oil Pump

3406pk said
Thanks all you guys for the advice. One of my concerns when engine was running was that oil pressure was low. During tear down I didn't find any real problems where oil was losing pressure unless it was cam bearings. Hopefully with all new bearings and rings oil loss will not be problem. I will pressurize with drill after assembly so can check out before installing engine. I will exchange HV for standard pump. Also good ideas to check pan fit and use HD shaft. Thanks a lot.

If you are concerned about oil pressure, you can buy the high pressure oil pump spring from Mancini and install it in whatever pump you decide to use. Use it if you wish.

Also on the low oil pressure thing. check that there are two plugs behind the camshaft rear thrust plate. I had an engine that the machine shop left out these two plugs, it would start with 20-25 psi cold, then drop down to 10 warm. It was these two plugs that were left out that caused the problem.