V8 oil pump in a model A ford

O

old skool

Member
Hello,

Saw a great article (SOSS Mag) on how to modify a V8 oil pump to a Model A Ford for more oil pressure and flow. I know a couple of shops do it and they want $300.00. I know I can do the work. I would buy it, if I had money to burn. The one thing I can't get a answer to is what year oil pump (30s-48) (49-50) (51-53). Does anyone know? Does it matter?

Thanks for your time.

Marty
 
old skool said:
Hello,

Saw a great article (SOSS Mag) on how to modify a V8 oil pump to a Model A Ford for more oil pressure and flow. I know a couple of shops do it and they want $300.00. I know I can do the work. I would buy it, if I had money to burn. The one thing I can't get a answer to is what year oil pump (30s-48) (49-50) (51-53). Does anyone know? Does it matter?

Thanks for your time.

Marty
Click to expand...

Hey Marty,
Flathead V8 pump is what is used, unless you want to buy a Stipe custom aluminum pump...the cat's meow , an expensive cat's meow, but worth every hundred, eh :)
My current build contains a 59A pump, but if you know how then you can modify the newer flathead pumps also.
My best advice to you, buy Jim B book (a member here). Besides his dry humor and great life experiences expressed, he also explains (with pictures for guys like me:rolleyes: ) how oil pumps are modified, etc, etc....
He also gives source referenced at the back of his book and a friend entered there did my oil pump mods.
BTW...not all flathead oil pumps are equal ! When Cliff explained/showed me the differences and what mattered....I knew that this was tooo important an item to be 'experimenting' with. He did a wonderful job on mine. He is also an old 4e4 guy and great machinist.
 
The early V8 pumps used the same size gears as the A pump ---so you probably want to look at the post war series of pumps with the pressure regulator in the pump
 
If your put this in to a pressurized B model engine it is well worth the time doing the V8 pump
but for standard oiling A model just turning down the shaft and opening up the passages is all you need
I would look improving the sump baffles also standard A models suffer from lack of oil on hard right hand cornering
 
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I have the V8 pump in my "A" . good pump . pre set at 18# & works well . stan vermile did mine .......... steve
 
Can you set the PSI on these? I noticed that last post stated "pre set 18#". What is the PSI on a late V8 flatty oil pump. Never messed with one of those engines. I am going to get the book too. Sounds good. This isn't the first time I have seen someone recommend it.
 
My highly modified model B engine has a V8 oil pump. The problem was that it set about 3/8" off the bottom of the oil pan and starved for oil on hard turns. I bought Jim Brierly's book, Bangers and Me and saw how to create baffles to keep the oil from moving away from the pump. Worked good.
 
I have the Stipe pump in mine and had to add the baffles to the pan to correct for the loss of oil pressure on hard right turns. I used a electronic bore scope to check that there was at least 1/4" between the baffles and the counterweights on my Burlington crank.
 

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Here's another question. Do you need to put more oil in since the V8 oil pump has a higher output. Is there a chance more is going out then what can return?
 
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