What is differene between PH43 and PH18 Fram oil filters?

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It's not PH-18, it is PH-16 that interchanges with PH-43, along with many others.PH-16 is 3.69 inches tall. The PH-43 is 4.05 inches tall.
 
I could use a part number for a good quality oil filter with a anti drain back valve, the short one. Also one for more flow and one that has more filtration. Thanks all.
 
Wix, Baldwin, Hastings, Fleetguard. NO FRAM, then, now, or ever (again)

Wix 1 quart is 51515, Wix short is 51068.
 
I could use a part number for a good quality oil filter with a anti drain back valve, the short one. Also one for more flow and one that has more filtration. Thanks all.

I think the Ford FL1A has the anti drain back valve. I have used them plenty of times on a small block with a 90 degree adapter. I use a gray scuff pad to get the Ford logo off, and then put a Mopar Performance sticker on it....lol.
 
I'd rather see a Ford filter on a MoPar than a Fram. Wal-Mart SuperTech filters are MUCH higher quality units than Fram! I run the SuperTech ST-2 on my Ford...
 
I think the Ford FL1A has the anti drain back valve. I have used them plenty of times on a small block with a 90 degree adapter. I use a gray scuff pad to get the Ford logo off, and then put a Mopar Performance sticker on it....lol.

I'd rather see a Ford filter on a MoPar than a Fram. Wal-Mart SuperTech filters are MUCH higher quality units than Fram! I run the SuperTech ST-2 on my Ford...

Purolator makes Ford/Motorcraft filters.
 
PH43 and PH16 have the same base and diameter. Both will work on a small block. The PH43 is a bit shorter and gives extra clearance for headers.
 
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