Thread: ?? low oil pressure on my 454

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running straight 40w oil, stock pan, high vol. pump. when engine is cool I have 25 psi at idle(800rpm) at 3000 rmp 55psi(in park) when engine is running 190 temp. the oil pressure is 40-45 @ 60 mph, 2100 rpm. then at idle the pressure drops down to 10 psi.!!!!( 800rpm) thwere is no rocker clatter though. as soon as I take off the oil pressure goes back up to 45 psi@ 60mph, is this ok? I have always heard 10 psi for every 1000rpm?? should I get a high pressure spring to install in the oil pump?? does anyone sell a high pressure oil pump?? or is it even nessary? the oil gauge is a electric one, but a mech. one read the same. the sender is connected right above the oil filter in the 1/8 pipe thread port.

That sounds like typical Chevy oil pressures....................don't sweat it.

Got to agree, doesn't sound like there is anything actually wrong with the pressure. Typical chebby.

it should be ok. i would never put a hv oil pump in a stock pan less it is the gm a 6 qt or 8 qt or a oil pan that is

Originally Posted by pat mccarthy

it should be ok. i would never put a hv oil pump in a stock pan less it is the gm a 6 qt or 8 qt or a oil pan that is

Pat,you are reading my mind.

BINGO

Starvation from the HV, then?

Originally Posted by Dan Stewart

Starvation from the HV, then?

yes