OLDS OLDSMOBILE Oil pump Choice...???

TURNA

TURNA

Rocket Powered Basset Hound
Jul 24, 2009
11,007
113
Socialist NY
Standard or high volume for Olds engines rebuild?

Milodon 5 quart pan
 
Last edited:
spidereyes455

spidereyes455

G-Body Guru
Mar 6, 2013
545
93
Northeastern PA
HV pumps aren't usually a good idea with a stock capacity pan. You run the risk of the pan going low or dry especially during spirited driving.
 
500/600

500/600

G-Body Guru
Supporting Member
Nov 17, 2018
851
93
West Virginia
I'd set the bearings a little loose and go high volume. But that's just me. I don't know how hard you'll be revving it.
 
olds307 and 403

olds307 and 403

Geezer
Oct 14, 2008
5,995
113
Melville,Saskatchewan
I'd set the bearings a little loose and go high volume. But that's just me. I don't know how hard you'll be revving it.
Everyone in the Olds world has different clearance ideas. Having a Halo and lighter KB pistons helps. Smitty got .002 rods and .0025 mains ground into the crank. I wouldn't go over .003" for clearance. The SBO doesn't have near as many bottom end issues as the 455, although my 403 had .010" rod bearings in it. The stock pistons are very heavy, KB's should be a few grams lighter. Most will say regular volume with a stock replacement pan.
 
pontiacgp

pontiacgp

blank
Mar 31, 2006
28,220
113
Kitchener, Ontario
I run a BB pump in my SBC which adds about 10% volume. If you want a little more volume you can add a thin washer to the spring.
 
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TURNA

TURNA

Rocket Powered Basset Hound
Jul 24, 2009
11,007
113
Socialist NY
Im asking about strictly Olds engines

I heard they suffer from slow drain back issues
 
500/600

500/600

G-Body Guru
Supporting Member
Nov 17, 2018
851
93
West Virginia
Washer adds pressure
 

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