LS5 454 Oil Pressure Normal Operating Range
Thread Starter
Intermediate
Joined: May 2011
Posts: 25
Likes: 0
From: Omaha NE
LS5 454 Oil Pressure Normal Operating Range
Cold and hot. Idle and at speed. Oil Pressure ranges between 65-70 PSI. 454 was rebuilt, to my knowledge and documentation from the previous owner to 100% original specifications. I have owned other BB cars before but was not sure if this is a characteristic of the vette having a high volume oil pump from the factory, or the rebuilder installing a high volume oil pump because he thought it was the way to go.
Correlating symptom possibly associated with the high pressure is small oil leak at the oil pan.
Craig
Correlating symptom possibly associated with the high pressure is small oil leak at the oil pan.
Craig
Drifting
Joined: Jan 2002
Posts: 1,645
Likes: 11
From: Schaumburg IL
I have a 454 rebuilt with a Melling HV. Cold at fast idle it pegs the gauge as yours does. Hooking up a temp gauge the pressure is right a 70 psi when cold. When fully warm at idle it runs 30-35 psi. Your engine is acting the same.
Burning Brakes
Joined: Apr 2007
Posts: 1,186
Likes: 41
From: Pinecrest FL
2015 C3 of the Year Finalist
sorry to hijack your thread a bit, but its on the same topic.
My oil pressure is fine. Reads around 40 psi at idle and around 55 psi on acceleration. 427 390 horse.
My gauge reads at around 5 psi with the engine off. Is there any way to adjust it?
Gary
My oil pressure is fine. Reads around 40 psi at idle and around 55 psi on acceleration. 427 390 horse.
My gauge reads at around 5 psi with the engine off. Is there any way to adjust it?
Gary
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Burning Brakes
Joined: Feb 2006
Posts: 1,223
Likes: 4
From: Regina Saskatchewan
I have pretty high oil pressure too. I was told that a really good oil filter will do this. I've been tempted to stick on a FRAM just to see if it'll come down. What are you running for a filter?
Melting Slicks
Joined: Nov 2004
Posts: 2,672
Likes: 6
From: Nevada City California
My '71 LS6 cold idles around 68, at warm idle is 34 and at running speed 55mph is just above 50, and climbs as I accelerate! Using Brad Penn 10w 40 and using WIX filter 51061.
Last edited by early shark; Apr 7, 2013 at 10:52 PM.
