larger oil filter adapter?
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Tuned
Joined: Mar 2009
Posts: 315
Likes: 8
From: Austin, TX
larger oil filter adapter?
Was reading an article about a 400 rebuild and it was mentioned they used an oil filter adapter to allow them to run a larger oil filter. Has anyone seen this? If so was there better oil pressure? Wondering if it is worth doing on my 400
https://www.tmeyerinc.com/product/oi...BpStcb7ztqtAVA
https://www.tmeyerinc.com/product/oi...BpStcb7ztqtAVA
More Turbo
Joined: Jun 2020
Posts: 648
Likes: 394
From: Montana
I'm running one. I believe it has better oil pressure now. I can't say how much, but the needle is further to the right on my factory gauge. If you want to buy the filters not online, my local Napa told me the application is an 1988 F700.
More Turbo
Joined: Jun 2020
Posts: 648
Likes: 394
From: Montana
Maybe. It seems fine. My oil pressure was ok before and is now ok'er. It is a nice big filter. But I don't know how much difference the filter size actually makes. My suburban with the 6.0 gas engine has a filter about half the size of the stock filter...the designers thought it was sufficient for a similar sized engine. TMeyer claims to have tested and says it is better. I believe they have done some testing and that it works well enough. It is small money for something that may offer an improvement.
Cargo Master
Joined: Oct 2020
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If you have room in your chassis you can always use the longer canister filter that has a longer element that'll screw right on to the stock filter adapter. A Hastings LF426 or equivalent. I can't believe that having a larger diameter thread on the adapter would make any difference.
Hotshot
Joined: Feb 2004
Posts: 10,825
Likes: 2,609
From: The Shenandoah Valley
Maybe. It seems fine. My oil pressure was ok before and is now ok'er. It is a nice big filter. But I don't know how much difference the filter size actually makes. My suburban with the 6.0 gas engine has a filter about half the size of the stock filter...the designers thought it was sufficient for a similar sized engine. TMeyer claims to have tested and says it is better. I believe they have done some testing and that it works well enough. It is small money for something that may offer an improvement.
I've considered a remote dual filter option for same reason, but I long ago accepted the option to just change the filter and top off the oil unless I'm due for an oil change.
I wonder if it's any harder changing that bigger filter. I know there appears to be plenty of room in a dent 4x4 chassis.
In a 351M/400 the oil pump pulls oil from the pan, then pumps it at limited pressure straight to the filter, then after the filter it get's to other parts as I recall, so if the filter get's restricted, but pressure seen leaving the pump is still limited by the relief spring ... so less oil will flow past the filter than would with a clean new filter, and all those preplanned leaks like lifters, bearings, etc ... see less oil ... as I see it. I think I recall that some engines have the oil filter after the bearings.
If you have room in your chassis you can always use the longer canister filter that has a longer element that'll screw right on to the stock filter adapter. A Hastings LF426 or equivalent. I can't believe that having a larger diameter thread on the adapter would make any difference.
Cargo Master
Joined: Oct 2020
Posts: 2,681
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A friend of mine used to run a Nascar truck team where they built their own engines. They were all dry sump of course but the filter they used was interesting. It was a hydraulic filter that didn't have a bypass or check valve setup like Ford's normally have and it had a slightly larger thread where it screwed onto the filter mount. He said that they bought them by the case and they were very inexpensive. So there's probably lots of different filters that'll work.
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Tuned
Joined: Mar 2009
Posts: 315
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From: Austin, TX
I think after seeing all the reply's I am going to have to try one. Thanking wix and napa have the filters available so will not hurt being able to do changes. My 400 should be a mostly fresh rebuild and has great oil pressure going down the road but A little light for my taste at stop lights/drive throughs. It's cheap enough to try and see.
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Cargo Master
Joined: Oct 2020
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Make sure that your choice of filter has the check valve built in. Mopar and Ford filters are identical except for that feature and sometimes people with big block Mopar engines will use a Ford filter if the engine sits a lot and tends to drain back. Especially if the rear sump RV pan is used.
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