I run an olds 455 I have had mine to 4500 maybe a little higher but not much. And I try not to keep it there longer than a min or so. Now I have a 10 qt. pan with the right pickup . Stock oil pump and I maintain 40 psi off idle . About 20 idling warm . No oil restrictions just opened up the oil returns in the heads.
Sent from my iPhone using SoCalJetBoats
I have a sbc in the fishin boat, and can keep 45-4600 rpm for eight, yes, 8 miles, the oil pressure was at 25 lbs at idle after that run.
At speed it was 50-55 lbs
dominator pump with an 'A' impeller... gps'd at 55-56 mph.
Dan'l
Oh, Stock L-31 pan...5.5 qts