The Ford Barn

NORMFREEMAN · 09-21-2022, 02:10 PM

how much oil pressure increase can be had by increasing spring pressure in relief valve located in upper front of block

norm

35fordtn · 09-21-2022, 07:04 PM

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If it;s a true 1953 Engine it has a pressure relief valve built into the oil pump itself. Flatheads dont require or need a ton of oil pressure for normal street use.

A local blocked off the hole to the pressure relief and achieved 95lbs which is way too excessive for a street flathead with normal clearances.

My 40 coupe is lucky to see over 8lbs idling when hot and 20lbs driving and has never given a issues.

My opinion it's like Human Blood pressure, too low or zero and your dead... Excessively too high and you on your way to death

09-21-2022, 02:10 PM	#1
NORMFREEMAN Junior Member Join Date: Sep 2021 Location: LEVELLAND,TX. Posts: 15	1953 f100 how much oil pressure increase can be had by increasing spring pressure in relief valve located in upper front of block norm

09-21-2022, 07:04 PM	#2
35fordtn Senior Member Join Date: Aug 2010 Location: McMinnville, TN Posts: 2,327	Re: 1953 f100 Sponsored Links (Register now to hide all advertisements) If it;s a true 1953 Engine it has a pressure relief valve built into the oil pump itself. Flatheads dont require or need a ton of oil pressure for normal street use. A local blocked off the hole to the pressure relief and achieved 95lbs which is way too excessive for a street flathead with normal clearances. My 40 coupe is lucky to see over 8lbs idling when hot and 20lbs driving and has never given a issues. My opinion it's like Human Blood pressure, too low or zero and your dead... Excessively too high and you on your way to death