Oil pressure too high? 96 454 vortec

[Dutchef]

My oil pressure on my 96 gmc 454 7.4L seems a little high. Highway driving at 75mph is about 55psi. Spec says what? 15-24? Could the 5w-30 be wrong? Oil pressure relief valve stuck? If so where is it located? Also have some intake backfire pop at start up only once then it fine...Iv changed everything...plugs...distrib...fuel filter...o2 sensores...maf.etc...next step i thought to change the cat. No codes. thanks for any help. 

[CamGTP]

I've never heard of oil pressure spec being that low with rpm. That is probably the minimum allowed pressure with rpm. I always thought they say somewhere between 7-10psi per 800-1,000rpm is the minimum.

 

Your pressure sounds perfect to me. The old 1994 350 I had years ago was 45psi at 1,700rpm and it had 236,000 miles on it.

[Grumpy Bear]

Get happy. Your pressure it more than good. You got some bad dope on 'normal' pressure for a 454.