Oil pump white spring
Registered User
Joined: Feb 2000
Posts: 1,445
From: Seattle, WA
GM white Spring: 3848911 
Oil Pump Spring (3848911)
Oil Pressure in small-block and V6/90º Chevrolet engines is regulated by a spring in the oil pump cover. This spring (color-coded white) produces approximately 70 psi oil pressure. Small Image Technical Notes: Used in high-performance oil pump P/N 3848907. Minimum recommended oil pressure for off-highway use is 65 psi at engine operating speed.
GM LIST: $3.91
GM Parts Direct: $2.32 + S&H
Oil Pressure in small-block and V6/90º Chevrolet engines is regulated by a spring in the oil pump cover. This spring (color-coded white) produces approximately 70 psi oil pressure. Small Image Technical Notes: Used in high-performance oil pump P/N 3848907. Minimum recommended oil pressure for off-highway use is 65 psi at engine operating speed.
GM LIST: $3.91
GM Parts Direct: $2.32 + S&H
Last edited by Steve in Seattle; Jan 14, 2007 at 10:02 PM.
Registered User
Joined: Dec 1969
Posts: 27,725
From: Little Rock, AR
Did you read the description posted above for an idea? Pressure has a lot to do with bearing clearances, so not everyone will see the same. Expect, roughly, at least a 10 psi increase. Could be more.
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