What oil presure on your 454 Mag EFI?
 

I am wondering what oil pressure other 454 Mag EFI 385hp owners are seeing on their engines. Mine is 40 - 41 at anything above idle and 20 at idle 600 rpm. The manual says at 2000 rpm and above 30 - 70 is normal and not less than 4 at idle. I am just wondering if my numbers are normal or on the low side compared to others. Thanks!

Re: What oil presure on your 454 Mag EFI?
 

When I had my 454 Mag MPI motor, I had just about the same pressures you are seeing. I would say that you are fine.

Re: What oil presure on your 454 Mag EFI?
 

I am 60 psi when running and 25 at idle, right after a hard run. After it cools back down will idle at 40psi.

Re: What oil presure on your 454 Mag EFI?
 

My stock 454s were about the same as Paytons. Your's don't sound out of the ordinary :cool:

Re: What oil presure on your 454 Mag EFI?
 

Got MarinePower 454 efi's--seeing same numbners as evberyone else. I'm using Castrol Dino/Synthetic Blend oil.

Re: What oil presure on your 454 Mag EFI?
 

I had 40-45 above idle, 20 at idle.