351w at about 2 grand is about 60-70 oil pressure. idle at hot it around 40psi. is that high. what will go wrong if its to high??

 

70 seems a bit high...maybee your guage is off a bit...too high and you can start to blow seals.

http://www.carmemories.com/cgi-bin/v...erience_id=132

 

What kind of oil pump do you have? What are the clearances on the main bearings? What kind of oil are you using?

 

its an oem pump.. we made the tolerances right on to the specs. and were running 15 30 shel retela.. what do u have on your mind

 

Tight clearance + heavier oil = high pressure.

You are a bit high for stock clearance and a stock pump. You may have a bypass valve that's sticking in the pump (all pumps have 'em, high pressure pumps have a heavier spring to keep the valve closed longer).

After your break in, switch to a 5w-30 or 5w-20 synthetic(I personally recommend Amsoil for their written warranty, but Royal Purple and Mobil 1 are also very good). The thinner oil will drop the pressure somewhat. You could start with the dino versions of these weights to see where you're at to save some $$$ and do it within the break in period.

I wouldn't worry about the pressure itself, the possibility of a defective bypass valve is more of a problem. I have my bypass set at 80psi with 20w-50 synthetic racing oil for my 302 (10psi per 1k rpm as designed...plus a little margin).